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We Are Finished Taking Bookings for Workplace Flu Vaccinations

Written by Onsite Health Team on . Posted in News. No Comments on We Are Finished Taking Bookings for Workplace Flu Vaccinations

We have now finished taking bookings for our 2026 workplace flu vaccination season. Each year, there comes a point when onsite clinic availability closes and we shift our full focus to completing the remaining booked visits.

Why workplace flu vaccination timing matters

Workplace flu vaccination works best when it is planned early. In New Zealand, the flu vaccine is available from 1 April each year, before winter starts. Health New Zealand recommends annual flu vaccination for everyone over 6 months of age. Healthify also notes that it takes about two weeks for the flu vaccine to become most effective. That is why many employers aim to organise vaccination before winter pressure builds across their teams.  

Flu season in Aotearoa New Zealand usually runs from May to October. During this period, workplaces often see more staff illness, more disruption, and more pressure on rosters and day to day operations. Influenza spreads quickly through shared environments, including offices, warehouses, customer facing workplaces, staff rooms, and meeting spaces.  

Why we stop taking bookings before the season ends

The wider influenza immunisation programme continues well beyond early winter. Healthify states that the influenza immunisation programme runs from 1 April to 31 December. Even so, an onsite workplace vaccination service has its own operational limits. There comes a point in the season when remaining clinic time needs closing as winter influenza viruses are circulating in the community and vaccination is of less benefit.

Closing bookings before the very end of the winter vaccination period helps us deliver the remaining clinics properly and safely.

Why employers still prioritise flu vaccination

Many employers offer flu vaccination to their staff because it is a simple way to support worker health through winter. The Immunisation Advisory Centre says annual influenza immunisation is recommended for everyone who can be vaccinated, and it notes that many employers offer the vaccine to staff. This fits with what we see each year. Businesses want to reduce barriers, make vaccination easier to access, and help their people prepare before flu spreads more widely.  

The flu vaccine is updated each year to match the strains most likely to circulate in New Zealand. Healthify explains that you need a flu vaccine every year because the vaccine is made to match the strains likely to be in Aotearoa New Zealand, and because protection becomes less over time.  

What this means for businesses now

For businesses that already have a booking with us, your clinic will continue as planned. We will keep working through our remaining workplace visits as we finish the season.

For businesses that missed out this year, the best next step is to plan earlier for 2027. The most useful workplace flu vaccination programmes are usually the ones organised well before winter demand becomes compressed. Early planning gives more choice around timing, better internal communication with staff, and a better chance of vaccinating people before winter flu exposure rises. Email Onsite Health at mail@onsitehealth.co.nz and we will add you to our database to contact early next year.

This matters because winter is when people are most likely to come into contact with influenza, and the vaccine needs time to work. Booking early helps line up workplace access with the period when vaccination is most useful.  

Looking ahead to next season

Flu vaccination remains one of the most practical seasonal health steps a workplace can support. It helps protect staff, supports business continuity, and reduces some of the pressure that winter illness can place on teams. While we are no longer taking new bookings for our 2026 workplace flu vaccinations, the value of planning ahead remains clear.

If your business missed the booking window this year, now is a good time to note it for next season. Early action gives the best chance of securing a workplace flu vaccination clinic during the most useful part of the winter vaccination period and after flu vaccines become available at the start of April each year.

References

Health New Zealand. (2025, August 7). Flu (influenza).

Health New Zealand. (2025, November 19). Flu (influenza) vaccine.

Healthify. (n.d.). Influenza vaccine, adults.

Healthify. (n.d.). Influenza vaccine, common questions.

Immunisation Advisory Centre. (n.d.). Influenza.

Immunisation Advisory Centre. (2025, March 6). Influenza vaccine.

man running by seaside

How Long Does It Take the Flu Vaccine to Work?

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If you are asking how long does it take the flu vaccine to work, the short answer is that it usually takes up to two weeks after vaccination for your body to build good protection against flu. That is why we encourage people to get vaccinated before winter illness becomes more common. In New Zealand, the flu vaccine is available from 1 April each year, before winter starts.

What happens in your body after the flu vaccine

After you receive the flu vaccine, your immune system starts responding straight away. The vaccine teaches your body to recognise the flu virus and produce antibodies against it. These antibodies help your body respond faster and more effectively if you come into contact with influenza later in the season. Being vaccinated causes your body to produce antibodies against the flu virus, and that this is what helps protect you.  

Your protection does not switch on the moment you get the injection. Your immune system needs time to build that response. It takes about two weeks for the flu vaccination to be most effective.

Why timing matters for winter protection

Timing matters because winter is when flu spreads more easily. In Auckland and across New Zealand, people spend more time indoors, workplaces are busy, children are at school, and respiratory viruses circulate more widely. Healthify says winter is the time when you are most likely to come into contact with the flu. That is one reason it is best to get the vaccine as soon as you can once it becomes available.

Health New Zealand’s booking guidance says to plan one to two weeks ahead before winter immunisations. This lines up with the time needed for the vaccine to become most effective. If you wait until flu is already moving through your workplace, school, or household, you may not yet have full protection when exposure happens.  

When should you get the flu vaccine in New Zealand

April to June is the key period to think about vaccination. The flu vaccine is available from 1 April each year, before winter starts. That timing is useful because it gives your body time to respond before flu transmission increases. It also makes planning easier for workplaces, families, and people with busy schedules. If you are booking a workplace vaccination clinic or arranging a visit to a pharmacy or medical centre to use a flu voucher, earlier is usually better than later.  

Does the vaccine help straight away at all?

Your immune response begins before the full two week point, but the safest and clearest advice is to allow up to two weeks for good protection to develop. This helps avoid a false sense of security in the first few days after vaccination. People can still catch flu if they are exposed shortly before vaccination or soon after it, before the immune response has had time to build properly. Getting vaccinated may not stop every case of flu, but it does make it less likely that you will get very sick.  

Why this matters for workplaces and whānau

Flu vaccination is not only about the individual. It also helps reduce the spread of flu through workplaces, homes, and the wider community. Yearly vaccination is the best way to protect communities from infection and serious illness. That makes the timing of vaccination especially important for people who work closely with others, care for vulnerable family members, or are more likely to have complications if they get the flu.  

So, if you have been wondering how long does it take the flu vaccine to work, the practical answer is to allow up to two weeks, and do not leave it until winter is already well underway. Getting vaccinated in the right window gives your body time to build protection when you are most likely to need it. Reach out to our team to book in your 2026 flu vaccination.

References

Health New Zealand. (2025, November 19). Flu (influenza) vaccine.

Health New Zealand. (2025, December 22). Book a vaccine.

Healthify. (n.d.). Flu (influenza).

Healthify. (n.d.). Immunisation, adults.

Healthify. (n.d.). Influenza vaccine, adults.

Healthify. (n.d.). Influenza vaccine, common questions.

Immunisation Advisory Centre. (2025, March 6). Influenza vaccine.

What to Expect from Your Workplace Flu Vaccinations

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An onsite flu vaccination visit should feel simple, well organised, and easy for staff to follow. At Onsite Health, we structure our workplace flu vaccination service so Auckland businesses can prepare clearly, support staff on the day, and keep disruption to work to a minimum. Our vaccinators come to your workplace, set up onsite, and provide flu vaccinations in a way that is practical for both employers and employees.  

Booking your onsite flu vaccination visit

The first step is to contact us with your team details to choose a date, time, and workplace location. Businesses can fill in an enquiry form or call our team, then provide their team size, preferred date, and Auckland location. We then organise the visit and confirm the booking details with the workplace.  

This planning stage matters because a workplace visit runs best when staff numbers, access, and timing are clear in advance. It also helps us match the visit to your team size and work environment, whether you are in an office, warehouse, clinic, retail site, or another workplace setting.  

Preparing your team before the day

Good preparation makes the visit smoother for everyone. A helpful workplace process usually includes sharing the clinic details with staff in advance, letting them know when the vaccinator will arrive, and giving them time to ask questions before the visit and allowing staff to wear practical clothing to easily access the upper arm to receive a vaccination.

We coordinate the visit and come to the workplace on the agreed date, ready to vaccinate the team onsite. Each vaccination only takes a few minutes, so the main goal before the day is making sure staff know where to go and when to be available. That keeps the session efficient and reduces interruption to the workday.  

Confirmation before the clinic

Closer to the day, workplaces should expect a reminder or final confirmation of the agreed session. This is a useful point to check staff attendance, room access, and any practical needs for the clinic setup.

For larger workplaces, this confirmation stage can also help managers organise staff flow, so people can attend in small groups rather than all at once. A simple plan often makes the whole visit run more smoothly.

What happens on the day

On the day of your onsite flu vaccination visit, our authorised vaccinators arrive at your workplace and set up a vaccination station. All vaccinators are either Registered Pharmacists or Registered Nurses with current authorisation to provide adult immunisations. Onsite Health is Cold Chain Accredited, which means vaccines are handled to Ministry of Health standards to maintain potency.  

The vaccination itself is quick. Each staff member’s flu jab takes just a few minutes, with minimal disruption to the workday. A typical vaccination rate is around 20 to 30 staff per vaccinator per hour, although actual timing can vary depending staff flow, workplace needs, and other factors.  

After vaccination, staff should remain onsite for a short 15 minute observation period. This is standard practice after immunisation and helps ensure immediate support is available if needed.

Support for remote or absent staff

Not every employee can attend the workplace session. Onsite Health addresses this by offering flu vouchers for remote and regional staff, or for people who miss the onsite clinic. These vouchers are redeemable at more than 260 pharmacies and dozens of GP surgeries across New Zealand. Many organisations use a mix of onsite vaccination and vouchers to cover their full workforce.  

A well run onsite clinic should be clear from the first contact through to the final vaccination on the day. That is what employers and staff should expect from an Onsite Health workplace flu vaccination visit. With clear booking, good preparation, qualified vaccinators, and a structured visit onsite, the process stays straightforward and easy to manage.  

computer render of flu like virus

Subclade K and Why the Flu Vaccine Still Helps Protect You

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You may have seen reports about subclade K, a newer influenza A(H3N2) variant that drove a strong Northern Hemisphere flu season. It has also been referred to in media reports as “super K”. That kind of headline can make people wonder if the flu vaccine is still worth having. The short answer is yes. Current New Zealand guidance still recommends annual flu vaccination, and Health New Zealand says the 2026 Southern Hemisphere vaccine available in New Zealand includes coverage for circulating A(H3N2) variants, including strains related to subclade K.  

What subclade K is

Subclade K is a branch of the influenza A(H3N2) virus. Influenza viruses change often, which is why vaccine strains are reviewed and updated every year. The Eurosurveillance study deleted looked at the early 2025 to 2026 flu season in England, where influenza A(H3N2) subclade K became the dominant strain early in the season. The paper also noted that this variant showed antigenic differences from the vaccine strain used in that Northern Hemisphere season.  

That sounds worrying, but it does not mean the vaccine stopped working. It means scientists needed to measure how much real world protection remained, especially against more serious illness.

What the research found

A 2025 study published in Eurosurveillance examined the early flu season in England during autumn 2025, when influenza A(H3N2) subclade K was the dominant circulating strain, to assess how well the seasonal flu vaccine was still protecting people against more serious illness.

The main value of this study is that it looked at real world vaccine effectiveness, not just laboratory matching. Even though subclade K differed from the vaccine strain in antigenic testing, the researchers still found meaningful protection against influenza linked emergency department attendance and hospital admission.

That is an important clinical point. Flu vaccines do not need to stop every infection to be useful. Reducing severity, lowering the chance of hospital care, and helping protect people at higher risk are all worthwhile outcomes. This is especially relevant for H3N2 seasons, because H3N2 strains are often linked with more severe illness in older adults.  

What this means for New Zealand

New Zealand is not using the exact same seasonal flu vaccine that England used in autumn 2025. Our 2026 Southern Hemisphere vaccine was selected later, using updated international surveillance and regional expert review. Medsafe says the Australian Influenza Vaccine Committee, with a New Zealand representative, consulted on the 2026 vaccine composition for New Zealand, Australia and South Africa in October 2025. For 2026, the recommended H3N2 components are A/Singapore/GP20238/2024 like virus for egg based vaccines and A/Sydney/1359/2024 like virus for cell based, recombinant based, or nucleic acid based vaccines.  

Health New Zealand has also made the local message very clear. Its flu vaccine guidance states that the 2026 Southern Hemisphere influenza vaccine available in New Zealand includes coverage for circulating A(H3N2) variants, including strains related to subclade K. That does not mean perfect protection against every infection. It does mean the vaccine has been updated with current strain information in mind, and it remains the best available tool for reducing flu risk this winter.  

Why vaccination still matters

The flu vaccine helps in more than one way. It can reduce the chance of infection, but even when infection happens, it may lower the severity of illness. That is one reason public health advice still backs vaccination during seasons where the virus has changed. Health New Zealand says the flu virus changes often, which is why the vaccine is adjusted each year. The Immunisation Advisory Centre also notes that there are four influenza vaccines available in New Zealand for 2026, including egg based, cell based, and adjuvanted options.  

This matters most for people who are more likely to become seriously unwell, including older adults, pregnant women, young children, and people with long term health conditions. Healthify notes that the flu can cause serious illness, especially in young children, older adults, and people with long term health problems.  

The practical takeaway

The research on subclade K gives a useful message for New Zealand. Even when an H3N2 strain has drifted away from the vaccine strain in laboratory testing, the vaccine can still provide meaningful real world protection, especially against more serious illness. For New Zealanders, that sits alongside current local guidance that the 2026 vaccine includes coverage for circulating H3N2 variants related to subclade K.  

So if you have seen headlines about subclade K and wondered whether the flu vaccine still helps, the evidence points in a practical direction. Yes, it does. It may not stop every case, but it remains one of the best ways to lower your risk of severe flu this winter.  

References

Health New Zealand. (2025, November 19). Flu (influenza) vaccine.

Healthify. (n.d.). Influenza vaccine, adults.

Immunisation Advisory Centre. (2026). Influenza immunisation programme.

Immunisation Advisory Centre. (2026). Influenza vaccine.

Kirsebom, F. C. M., Andrews, N., Tessier, E., et al. (2025). Early influenza virus characterisation and vaccine effectiveness in England in autumn 2025, a period dominated by influenza A(H3N2) subclade K. Eurosurveillance, 30(46), Article 2500854.

Medsafe. (2025, November 10). Influenza vaccine composition.

young woman making booking taking notes at outdoor office space.

Don’t Miss Out on Workplace Flu Vaccinations

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If your business has not booked its 2026 workplace flu vaccinations yet, now is the time to act. We are finishing our workplace flu vaccination season in June, so the booking window is narrowing. For many businesses, this is the last chance to organise an onsite clinic.

Why workplace vaccination is still worth booking

In New Zealand, flu season usually runs from May to October. That means winter exposure is already underway, and workplaces that delay much longer risk missing the best practical window to vaccinate staff through a workplace clinic.  

Flu spreads quickly through shared work environments. Offices, warehouses, retail teams, hospitality venues, healthcare settings, and transport based roles all bring people into close contact. Health New Zealand says influenza spreads from person to person through touch and droplets in the air, including coughing, sneezing, and talking. Once one staff member brings flu into the workplace, it can move through a team quickly.  

Workplace vaccination remains one of the most practical ways to reduce that risk. The Immunisation Advisory Centre states that annual flu immunisation is recommended for everyone who can be vaccinated, and also notes that many employers offer the vaccine to their staff. From a business point of view, onsite delivery makes access easier, reduces the need for staff to book separate appointments, and helps improve uptake across the team.  

Our 2026 workplace vaccination season is nearly finished

We are now in the final part of our workplace vaccination season, and we will be finishing our onsite flu vaccinations in June. We are not closing on one fixed public date, because clinic availability depends on remaining capacity and scheduling, but the season is coming to a close.

That means businesses that still want an onsite workplace clinic should not leave it too long. Once our June appointments are full, the remaining options become more limited. For some employers, that may mean relying on individual staff to arrange vaccination elsewhere, rather than having the convenience of an organised workplace clinic.

Why acting now helps your team

Booking now gives your staff the best chance to receive vaccination while winter is still in front of us. Even though the national influenza immunisation programme runs beyond mid year, the best time for a workplace clinic is generally before winter demand and staffing pressures make planning harder. Healthify says it is best to get the flu vaccine as soon as you can, because winter is when people are most likely to come into contact with influenza.  

This is especially important for teams that include staff at higher risk of complications, including older adults, pregnant women, and people with certain long term health conditions. Health New Zealand continues to recommend annual flu vaccination for everyone over six months of age, with funded access for eligible groups.  

A practical step before the season moves on

Flu vaccination is one of the simplest seasonal health steps a business can take. It supports staff wellbeing, reduces barriers to vaccination, and helps workplaces respond early rather than waiting for illness to disrupt operations. We are still vaccinating, but only for a limited time as we move through June.

If your business has been meaning to organise workplace flu vaccinations for 2026, this is the time to do it. Do not miss out on the last part of the season while clinic space is still available.

References

Health New Zealand. (2025, August 7). Flu (influenza).

Health New Zealand. (2025, November 19). Flu (influenza) vaccine.

Health NZ. (2026, April 2). Health NZ urges people to get vaccinated ahead of winter.

Healthify. (n.d.). Influenza vaccine, adults.  

Immunisation Advisory Centre. (2025, March 6). Influenza vaccine.

Immunisation Advisory Centre. (2026). Influenza immunisation programme.

Immunisation Advisory Centre. (n.d.). Influenza.

image of Auckland city in New Zealand at dusk

Why Now Is the Optimal Time for a Flu Vaccination in Auckland

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If you are wondering when to get a flu vaccination, the answer for Auckland is now. In New Zealand, the flu vaccine becomes available from 1 April each year, before winter starts. Health New Zealand recommends yearly flu vaccination for everyone aged over 6 months. The vaccine is updated each year because influenza viruses change over time.  

Why timing matters

Timing matters because flu protection is not immediate. Health New Zealand advises planning at least 1 to 2 weeks ahead before winter, and Healthify notes that it takes about 2 weeks for the flu vaccine to become most effective. That means people vaccinated in April or early May are more likely to have good protection in place before flu activity builds through winter.  

In Auckland, winter brings the same seasonal rise in respiratory illness seen across the rest of New Zealand. Flu spreads easily in offices, schools, public transport, healthcare settings, retail spaces, and busy households. When more people are indoors and in close contact, viruses move more easily from person to person. That is why early vaccination matters. It gives your immune system time to respond before exposure risk rises.  

Why April and May are the best window

From a clinical point of view, April and May are the most practical months for most people to be vaccinated. The vaccine is available from 1 April, and winter is the period when you are most likely to come into contact with influenza. The Immunisation Advisory Centre also advises that the vaccine should be given before the influenza season in New Zealand.  

This early timing is especially helpful for people with busy work schedules, travel plans, school commitments, or family responsibilities. It is easier to plan vaccination before winter pressure starts. It also lowers the chance of leaving it too late and entering the peak season without full protection. For Auckland workplaces, this matters because flu can affect several staff members at once and create disruption across teams. Early vaccination is one of the simplest ways to reduce that risk.  

Who should think about getting vaccinated now

Health New Zealand recommends flu vaccination for everyone over 6 months of age. It is particularly important for people more likely to become seriously unwell, including pregnant people, older adults, and people with certain long term conditions.

Even if you are generally healthy, vaccination still matters. Influenza is usually worse than a common cold, and it can spread before people realise how unwell they are becoming. Vaccination helps reduce the risk of catching flu and helps lower the spread of flu within the wider community. This protects not only the individual, but also whānau, workmates, customers, and more vulnerable people around them.  

Why waiting is not ideal

Some people assume they can wait until winter is fully underway. The problem with that approach is that by the time flu is circulating widely, you may already have had exposure, and the vaccine still needs time to work. A delay of even a couple of weeks can reduce how prepared you are during the early part of peak season. If the goal is strong winter protection, earlier is better than later.  

For Auckland businesses, the message is straightforward. The flu vaccine is already available, winter is approaching, and protection takes time to build. Getting vaccinated now is the best step if you want your protection in place when winter illness reaches its highest point.  

References

Health New Zealand. (2025, November 19). Flu (influenza) vaccine.

Health New Zealand. (2025, December 22). Book a vaccine.

Health New Zealand. (2025, August 7). Flu (influenza).

Healthify. (n.d.). Influenza vaccine, adults.

Healthify. (n.d.). Immunisation, adults.

Healthify. (n.d.). Influenza.

Immunisation Advisory Centre. (2025, March 6). Influenza vaccine.

Immunisation Advisory Centre. (2026). Influenza immunisation programme.

Woman with pnuemonia coughing and holding her chest.

Flu Isn’t “Just a Virus”, It Can Lead to Serious Complications

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Many people still think of flu as something you can push through. That view misses the real risk. Influenza is a serious viral infection that can lead to complications, hospital admission, and in some cases death. Health New Zealand says some people get very sick with flu, and around 500 people die from it each year in New Zealand.  

Why flu can become serious

Flu affects more than the nose and throat. It can spread through the respiratory tract and place real stress on the body. The Immunisation Advisory Centre notes that influenza can lead to serious complications including bronchitis, pneumonia, heart failure, worsening asthma, miscarriage, and death in some groups. That is a key reason everyone should take influenza seriously every winter.  

One of the most important, and common, complications is pneumonia. Flu can inflame the airways, weaken normal defences in the lungs, and make it easier for other infections to take hold. Lower respiratory tract infections such as pneumonia are more serious than upper respiratory infections, and pneumonia can lead to severe illness and hospital care.  

Recap: Influenza can:

  • Directly infect the lungs 
  • Damage airway defences 
  • Make it easier for bacteria to cause secondary infections 

This significantly increases the risk of:

  • Hospitalisation
  • Severe illness 
  • Death in vulnerable groups 

Who is more likely to have complications

Flu does not affect everyone in the same way. People at higher risk of complications include pregnant women, older adults, and people with long term conditions such as heart disease, diabetes, and asthma. Having influenza during pregnancy carries a higher risk of serious complications, including premature birth, low birthweight, miscarriage, or stillbirth if flu occurs during pregnancy.  

The Immunisation Advisory Centre also highlights people who are immunocompromised as being at higher risk of severe influenza and complications. This matters in everyday settings because someone may look well at work, on public transport, or at a family event, but still be more vulnerable to serious illness than others around them.  

Recap: Higher-risk groups are more likely to experience:

  • Severe infection 
  • Complications like pneumonia 
  • Hospital admission 

When more than one virus is circulating

Winter illness is not only about influenza. COVID 19, and RSV all circulate through winter and place pressure on emergency departments, hospitals, GPs, and community services. These viruses can all cause more severe illness in babies and young children, pregnant people, older adults, and people with weakened immune systems.  

That matters because people are often exposed to more than one respiratory virus in the same season. Even when we are not talking about confirmed co infection in every case, the overall burden rises when several viruses are circulating at once. RSV can itself cause serious complications, including pneumonia, and COVID 19 can also make some people very unwell. When flu is added into that mix, recovery can be harder and the risk picture becomes more serious, especially for higher risk groups.  

Recap: When co-infection occurs:

  • Illness severity increases 
  • Recovery becomes more difficult 
  • Risk of complications rises 

Why prevention matters

Prevention matters because flu spreads quickly through households, workplaces, schools, and the wider community. Flu vaccines are available from 1 April 2026 ahead of the winter season. Vaccinating before winter helps reduce the chance of infection and lowers the risk of severe illness and complications if infection does happen. It also helps protect whānau and reduces pressure on health services during the busiest respiratory months of the year.  

The flu vaccination is more than a personal choice

Flu prevention is not only about the person getting vaccinated. It also helps protect the people around them. Immunisation supports both individual and community protection. That matters in workplaces, aged care settings, health services, and homes where vulnerable people may be exposed to infection brought in by others.  

Flu is easy to underestimate because it often starts with familiar symptoms. The complication risk is what changes the picture. Pneumonia, worsening long term conditions, pregnancy related complications, and severe winter illness are all real outcomes seen in New Zealand.

Contact us to book your yearly flu vaccine, which remains one of the simplest and most effective ways to lower that risk for you, your staff, and those in your life.  

Recap: Vaccination helps:

  • Reduce the chance of infection 
  • Lower severity if infection occurs 
  • Decrease risk of complications like pneumonia

That means vaccination helps reduce:

  • Transmission
  • Pressure on healthcare systems 
  • Risk to vulnerable people 

References

Shirley, P. (2026). Flu and Friends 2026 webinar [Webinar].

Health New Zealand. (2025, August 7). Flu (influenza).

Health New Zealand. (2025, November 19). Flu (influenza) vaccine.

Health New Zealand. (2025, December 22). Book a vaccine.

Health New Zealand. (2026, April 2). Health NZ urges people to get vaccinated ahead of winter.

Health New Zealand. (2026, April 23). Winter Plan 2026 national initiatives.

Immunisation Advisory Centre. (2025, March 6). Influenza vaccine.

Immunisation Advisory Centre. (n.d.). Influenza.

Healthify. (2024, October 3). Respiratory tract infections.

Healthify. (2024, October 15). Pneumonia.

handing over voucher or prescription at a pharmacy to a pharmacist

Onsite Health Begins Sending 2026 Flu Vouchers to Clients

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Our 2026 flu vouchers started going out to clients at the beginning of April. In New Zealand, flu vaccines become available from 1 April each year, and annual vaccination is recommended before or during the winter flu season. Protection is not instant, it usually takes about two weeks for the body to build a good immune response after vaccination. Sending vouchers early helps employers give staff enough time to get protected before flu activity builds through winter. 

Why we send 2026 flu vouchers in April

Health New Zealand advises that the flu vaccine is available from 1 April, and recommends yearly flu vaccination for everyone aged over 6 months. The Immunisation Advisory Centre also advises annual vaccination because influenza strains change, and the vaccine is updated to match the strains most likely to circulate. 

From a clinical point of view, early vaccination is practical. The aim is to have protection in place before flu spreads widely through workplaces, households, schools, and public spaces. For businesses, that matters because influenza can move quickly through teams and lead to several staff being away at the same time.

Who 2026 flu vouchers are for

Flu vouchers are useful for staff who cannot attend an onsite workplace vaccination clinic. That includes people working from home, staff who travel, employees based in other regions, and anyone who is away on the day of the workplace visit. They also suit organisations with smaller teams, or those spread across more than one site.

This is one of the practical strengths of a voucher programme. A business may run an onsite clinic for head office staff, while also giving vouchers to people in regional offices or remote roles. That helps employers extend coverage across the wider team, rather than limiting access to one location or one day. Onsite Health’s flu voucher offering is designed for this kind of nationwide staff coverage.   

How Onsite Health distributes flu vouchers

We send flu vouchers to the client, not directly to individual staff members. This gives employers more control and flexibility over how vouchers are shared across their team. A business can decide who needs a voucher, when it should be sent, and how it should be distributed internally. This works well for organisations with a mix of office based staff, remote workers, travelling employees, or teams spread across different locations. It also makes it easier to manage last minute changes, staff absences, and new starters. By sending vouchers to the client for internal distribution, we help keep the process simple, practical, and easy to manage.

Where staff can redeem flu vouchers

Our 2026 flu vouchers can be redeemed at selected GP surgeries and vaccinating Unichem and Life Pharmacies throughout New Zealand. This gives staff a simple option close to home or work, rather than needing to travel to a main office for vaccination. For employers with teams in more than one city, this makes planning easier and more inclusive. 

Vouchers are emailed directly to the client for internal distribution to staff. This keeps the process simple and allows employers to send them to the right people quickly. There is also no minimum number required to purchase flu vouchers, which makes them a practical option for both small and large teams. 

How flu vouchers support nationwide staff coverage

Many New Zealand businesses no longer work from one central office. Some teams are hybrid, some are fully remote, and some are spread across regional branches. A flu voucher programme helps employers respond to that change in a practical way.

From a health point of view, wider vaccine access improves the chance that more staff will be vaccinated before winter peaks. Many employers already support flu vaccination because it helps reduce the risk of severe illness and can lower disruption during winter. Easier access usually supports better uptake. When people can get vaccinated in their own area, at a pharmacy or clinic that suits them, there are fewer barriers around time, travel, and logistics. 

This approach also gives staff flexibility. Some people may miss an onsite clinic because of leave, meetings, travel, or shift patterns. A voucher gives them another way to be included, increasing workforce coverage.

A practical step before winter

Sending 2026 flu vouchers in April is a simple but important part of winter planning. It matches the start of the New Zealand flu vaccination season, supports timely protection, and helps employers reach staff across different locations. For many organisations, vouchers are not a replacement for onsite clinics, but an added layer of access.

Contact us to get flu vaccination vouchers for your staff today.

Sources

Health New Zealand, Te Whatu Ora. (2025, November 19). Flu (influenza) vaccine.

Health New Zealand, Te Whatu Ora. (2026, April 2). Health NZ urges people to get vaccinated ahead of winter.

Immunisation Advisory Centre. (2025, March 6). Influenza vaccine.

Immunisation Advisory Centre. (n.d.). Influenza.

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Onsite Health is Now Vaccinating Across Auckland

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Workplace flu vaccinations have started for 2026

We have now started providing 2026 flu vaccinations across Auckland. Our workplace clinics began at the start of April, which gives Auckland businesses the chance to protect staff before flu activity builds through winter. We are taking bookings for the rest of the season, which lasts until June.

Flu protection is not immediate. The flu vaccine usually takes up to two weeks to build good protection, which is why vaccination is recommended before or during the early part of the New Zealand flu season. Health New Zealand and the Immunisation Advisory Centre both advise annual flu vaccination because influenza viruses change regularly and the vaccine is updated each year to match the strains expected to circulate. 

Why timing matters for Auckland workplaces

In New Zealand, flu is most common during winter. It spreads easily through coughing, sneezing, and close contact. In busy offices, warehouses, customer facing workplaces, and shared staff areas, one case can quickly become several. That can mean disruption, sick leave, and pressure on teams during an already busy part of the year. 

That is why we start workplace flu vaccinations in April. Vaccinating early helps staff build protection before influenza spreads more widely in the community. It also gives employers more choice around booking dates and helps avoid the rush that often comes later in autumn and early winter.

How our workplace vaccination service works

We keep the process simple and practical. After a workplace books with us, we confirm the date, time, site details, and expected staff numbers. We then attend the workplace and provide vaccinations onsite through an authorised vaccinator. Staff complete consent before vaccination, and we advise a 15 minute post vaccination wait period afterwards.

This approach helps remove common barriers. Staff do not need to arrange separate appointments, drive to a clinic, or take extra time out of the day. Making flu vaccination easy usually improves uptake, which is important in workplaces where higher participation can help reduce the spread of infection between colleagues. The Immunisation Advisory Centre notes that many employers offer flu vaccination to staff as part of good winter health planning. 

Vaccine options for 2026

For 2026, we are offering two flu vaccine options, a traditional egg based vaccine and Flucelvax®, which is a cell based vaccine. Both are designed to protect against the influenza strains expected to circulate during the coming winter.

The 2026 vaccine strains reflect the World Health Organization recommendation for the Southern Hemisphere season. As with every year, the strain mix has been updated because influenza viruses change over time. This annual update is one reason a flu vaccination is recommended each year, even for people who had one last winter.   

Workplace flu vaccinations across Auckland

We provide workplace flu vaccinations across Auckland, including key business areas and larger employment hubs such as Auckland CBD, Newmarket, Parnell, Grafton, Penrose, Mount Wellington, Ellerslie, Greenlane, Onehunga, East Tamaki, Highbrook, Mount Eden, Albany, Takapuna, Rosedale, Wairau Valley, Henderson, Westgate, Airport Oaks, Māngere, and Manukau.

If you are looking to book workplace flu vaccinations across Auckland, we can arrange an onsite clinic at your workplace and help make the process simple for your team. Feel free to reach out to us if you are not sure if we cover your Greater Auckland location.

Support for remote and flexible teams

Not every employee is in the office on vaccination day. Some work remotely, are travelling, or are based outside Auckland. To support these staff, we also offer flu vouchers that can be redeemed at selected clinics and pharmacies across New Zealand. This gives employers a practical way to include more of their team in the vaccination programme, even when staff are spread across different locations.   

Don’t miss out on protecting your staff this winter

Annual flu vaccination remains one of the most effective ways to reduce the risk of influenza and its complications. It also supports staff wellbeing and helps workplaces prepare for the winter months with less disruption.

We have already started our 2026 workplace flu vaccinations across Auckland. If your business is planning ahead for winter, now is a good time to book. Reach out to our friendly team to organise a date and time that is right for your staff.

Sources

Health New Zealand. (2025, November 19). Flu (influenza) vaccine.

Health New Zealand. (2025, August 7). Flu (influenza).

Immunisation Advisory Centre. (2025, March 6). Influenza vaccine.

Immunisation Advisory Centre. (2025). Influenza.

Immunisation Advisory Centre. (2026, February 16). Guidelines for post-vaccination wait times.

Professional older woman smiling while holding a tablet in a modern office setting, wearing glasses and business attire.

The New Link Between Working Age Health and Flu Prevention

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Flu vaccination plays a clear role in preventing influenza infection and reducing severe illness. New research has also created interest in the possible long term health benefits of flu vaccines, including brain health. Even so, the findings help explain why flu prevention matters for long term wellbeing and why employers can benefit from strong vaccination coverage in the workplace.

What the research says about flu vaccination and dementia risk

A large 2022 US claims-based cohort study compared adults aged 65 and over who received an influenza vaccine with similar adults who did not. Over about four years of follow up, the study reported that 5.1 percent of vaccinated people developed Alzheimer’s disease compared with 8.5 percent of unvaccinated people. The authors reported an estimated relative risk of 0.60 and a number needed to treat of 29 over the follow up period. These results suggest an association between flu vaccination and a lower observed risk of Alzheimer’s disease in that population, but the study design cannot prove cause and effect.

Other reporting has grouped this research with findings on shingles and pneumonia vaccines, which have also shown links with a lower risk of dementia in some observational studies. These reports help raise awareness, but it is important that they do not confirm prevention.

What this means for keeping employees healthy long term

The proven benefits remain short term and clear, fewer influenza infections, fewer severe cases, and lower risk of hospitalisation. The possible longer term benefits, such as a lower observed risk of dementia in some older adult studies, remain an emerging area of research.

For employers, the practical value is strong. If vaccination reduces severe illness and complications, employees return to normal sooner and teams face fewer gaps in staffing. If future research continues to support longer term benefits, that would also support healthy ageing across the workforce over time, especially as many workplaces employ people in their 50s and 60s, and many employees care for older family members.

A healthier workforce supports productivity and lowers the operational costs that come with unplanned absenteeism.

Why organisations should think beyond sick leave

There is also growing interest in longer term health links beyond the brain. A 2025 review discussed how influenza infection can trigger inflammation that may contribute to cardiovascular events in higher risk people, and it reviewed influenza vaccination as a preventive strategy in this wider context. The take home message for workplaces stays simple, preventing flu can reduce more than short term disruption.

Influenza prevention is not only about fewer winter sick days. Flu can cause severe illness, particularly in older adults and those with long term conditions. Protecting employees also reduces the chance of bringing influenza home to vulnerable family members, including older parents, grandparents, and young children.

What employers can do now practical steps for winter protection

Workplace flu prevention works best when it is easy, early, and well communicated.

  • Run onsite vaccination clinics, so staff can get vaccinated at work with minimal disruption.
  • Provide flu vouchers, so staff who miss the clinic, work remotely, or travel can still get vaccinated at a pharmacy or medical centre.
  • Communicate early, with simple messages on vaccination dates, consent forms, and what to expect on the day.
  • Keep the message accurate, the main proven benefit is preventing flu and reducing severe outcomes and positive heart health benefits, while long term links like brain health remain an area of active study.

These steps help employers protect staff, support whānau wellbeing, and reduce winter disruption, with the added benefit that research continues to explore the wider health effects of vaccination.

Sources

Smiling doctor checking an older man’s blood pressure during a routine health appointment in a bright clinic.

Workplace Flu Vaccinations: Supporting Heart Health

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Most people underestimate the flu

Many people think of the flu as a bad few days in bed, a fever, body aches, and time away from work. Those symptoms are real, but they are not the full story.

Influenza is not the same as a common cold. It is a viral infection that can put intense stress on the body. For some people, that stress can be serious enough to trigger a heart attack or stroke. This is especially important for older adults, people with heart disease, and anyone with other long term health conditions. It also matters for people who think they are otherwise well.

The Heart Foundation of New Zealand notes that even people without a diagnosed heart condition are more likely to have a heart attack after the flu. That makes influenza more than a seasonal illness. It is also a cardiovascular risk factor that deserves more attention. 

Why the flu can affect the heart

When you catch the flu, your immune system responds quickly. That response helps fight the virus, but it also causes inflammation throughout the body.

Inflammation can affect the heart and blood vessels in a few important ways. It can make blood more likely to clot. It can place extra strain on the heart through fever, dehydration, and a faster heart rate. It can also disturb fatty plaque already sitting in the arteries. If that plaque becomes unstable and ruptures, a clot can form and block blood flow to the heart or brain.

That is one reason doctors take influenza seriously in people with cardiovascular risk. Research on inflammation and thrombosis shows that infection can push the body into a state where clotting and vascular events become more likely. 

The risk rises quickly after infection

One of the strongest studies in this area looked at laboratory confirmed influenza and hospital admissions for heart attack. It found that the risk of acute myocardial infarction was about six times higher in the first seven days after confirmed flu infection than during the control period.

That finding supports what clinicians have suspected for years. A respiratory infection can be the event that tips a person from stable heart disease into a medical emergency. Other studies have also shown that acute infections can raise the risk of cardiovascular events for longer than just a few days, especially in people who already have underlying vascular disease. 

This matters because not every person at risk knows they are at risk. Some people have narrowing in their arteries and no obvious symptoms. For them, the flu may be the trigger that reveals a hidden problem.

Prevention matters more than many people realise

If influenza can trigger heart attacks and strokes, then preventing influenza becomes part of protecting the heart.

That is where annual flu vaccination becomes important. A large meta analysis of randomised clinical trials found that influenza vaccination was linked with fewer major cardiovascular events overall. In that analysis, 3.6 percent of vaccinated patients had a major cardiovascular event within 12 months, compared with 5.4 percent in the placebo or control group. The benefit was strongest in people with recent acute coronary syndrome, where risk was reduced by 45 percent. 

The Heart Foundation of New Zealand also advises that flu vaccination lowers the chance of getting seriously unwell and helps reduce the risk of heart events. Health New Zealand recommends a flu vaccine every year, and it is funded for people aged 65 and over, pregnant people, and people with long term conditions including heart conditions. 

A simple step that supports heart health

Flu vaccination should not be seen only as a way to avoid fever and time off work. It can also be viewed as part of wider cardiovascular prevention.

For someone with heart disease, diabetes, chronic lung disease, or older age, the flu vaccine is a practical step that may reduce the chance of both severe infection and a serious heart event. It does not replace blood pressure treatment, cholesterol management, smoking cessation, exercise, or regular medical care. It sits alongside them.

Influenza can do more than make you feel miserable. In some people, it can trigger a heart attack or stroke. Preventing flu is one way to lower that risk, and an annual flu vaccine remains one of the simplest tools we have. Contact us to book in your workplace flu vaccinations, or click here to read more.

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Healthcare professional forming a heart shape with their hands in a medical clinic, symbolising care, compassion, and heart health.

Flu Vaccination and Heart Protection, What You Should Know

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Flu vaccination helps prevent influenza and reduce severe illness. There is also strong interest in how influenza affects the heart. Cardiovascular events can lead to serious time off work, long recovery times, and hospital admission. For employers who want to make staff healthier, New Zealand workplaces can take practical steps before winter to reduce risk.

Flu infection can trigger heart events

Influenza is not only a respiratory illness. It can place extra strain on the body, especially in people with underlying cardiovascular risk. A 2025 review explains that influenza infection can trigger acute cardiovascular events, including heart attacks. The proposed pathways include systemic inflammation, endothelial dysfunction, and increased clotting, which can destabilise plaques and increase the chance of thrombosis.

This matters because the flu spreads quickly in workplaces and households. An infection can lead to fever, dehydration, reduced oxygenation, and higher heart workload. For some people, that can become the tipping point for a heart event. A strong prevention programme helps protect staff across a wide range of health backgrounds.

What studies suggest about flu vaccination and cardiovascular outcomes

The same review brings together evidence that influenza vaccination may reduce cardiovascular event rates. It discusses findings from observational research and randomised trials. The overall picture suggests that vaccinated people experience fewer cardiovascular events, with notable benefit reported in some studies after myocardial infarction.

This does not mean a flu vaccine replaces cardiovascular care. However, it does mean vaccination can be a useful prevention step, especially for people already at higher risk. From a workplace perspective, this is a key point. Flu vaccination supports more than fewer coughs and flu’s, it may also help reduce the chance of severe complications that lead to hospitalisation and prolonged absence.

New Zealand guidance also supports annual vaccination as a routine health measure. Health New Zealand recommends adults get a flu vaccine each year from 1 April. Immunity takes about two weeks to build, so early timing matters for protection before winter peaks.

Note: On the 29th of March, The New Zealand Herald released an article titled “Epidemiologist says influenza vaccine can reduce risk of heart attacks” which may be of interest to support further reading on the topic.

What this means for workplace risk and absence

Cardiovascular events have a high impact on attendance. A heart event usually means emergency care, recovery time, and follow up appointments. Even when an employee returns to work, they may need reduced hours or lighter duties. That can affect teams, rosters, and delivery timeframes.

Flu vaccination cannot remove all risk, but it can help lower the chance of influenza infection and reduce severity. This can mean fewer severe outcomes, fewer long recoveries, and less disruption. It also adds a layer of protection for staff with known heart risk, even if they do not openly discuss their medical history at work.

There is also a wider benefit. Preventing flu at work reduces the chance of staff taking influenza home to vulnerable whānau, including older family members who face higher risk of complications.

A workplace vaccination programme works best when it is easy and planned early. Our process keeps disruption low and improves uptake. Contact our team and we will confirm a suitable clinic date and expected staff numbers.

Sources

Portrait of woman catching a flu, sneezing, feeling sick, sitting on bed with laptop and working on remote while caught a cold.

6 Ways to Reduce Sick Leave in the Workplace

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Reducing staff sick leave remains a key priority for employers. Respiratory illnesses such as influenza are a leading cause of winter absence. The Ministry of Health confirms that influenza can cause several days off work for healthy adults and more serious complications for vulnerable people. Planning ahead before the winter can significantly reduce disruption to workflow and productivity. Below are six practical, evidence based ways to support healthier teams and reduce sick leave.

1. Provide Workplace Flu Vaccinations

You guessed it… workplace flu vaccination programmes are one of the most effective strategies for reducing staff sick leave. The Ministry of Health advises that annual influenza vaccination lowers the risk of severe illness, hospitalisation, and complications. Even in seasons where circulating strains vary slightly, vaccination still reduces severity and duration of illness.

Influenza vaccination takes around two weeks to build effective immune protection. In New Zealand, flu activity usually increases from May and peaks during winter. Encouraging staff to be vaccinated in autumn ensures protection is in place before virus circulation rises.

Offering vaccinations onsite at your workplace removes common barriers such as booking delays, travel time, and lost productivity. Funding vaccination for staff increases uptake and demonstrates commitment to employee wellbeing. Higher vaccination coverage within a workplace reduces the likelihood of rapid spread between colleagues, particularly in shared office spaces, open plan environments, and customer facing roles.

2. Promote a Stay Home When Sick Culture

Attending work while unwell increases transmission risk. Health New Zealand advises people with flu like symptoms such as fever, cough, sore throat, or body aches to stay home until they recover.

Clear workplace policies that support appropriate sick leave reduce pressure on staff to attend work while contagious. Managers and team leaders play an important role by modelling responsible behaviour. Encouraging staff to prioritise recovery reduces the likelihood of workplace outbreaks that result in larger numbers of absences.

3. Improve Workplace Hygiene Practices

Influenza spreads through respiratory droplets and contact with contaminated surfaces. Practical hygiene measures reduce transmission risk. Employers can implement:

  • Accessible hand hygiene stations, including hand sanitiser in shared areas, meeting rooms, reception spaces, and break rooms to encourage regular use throughout the day
  • Clear reminders about effective hand washing techniques and cough etiquette, reinforced through signage and internal communications
  • Routine cleaning and disinfection of high touch surfaces such as door handles, lift buttons, keyboards, shared equipment, and kitchen facilities
  • Improved ventilation in enclosed spaces, including regular airing of meeting rooms and assessment of mechanical ventilation systems where applicable

The Ministry of Health promotes hand hygiene and respiratory etiquette as key infection prevention measures during the New Zealand Flu Season.

4. Support Flexible Working for Office Staff

Flexible working arrangements can reduce close contact during peak illness periods in office environments. Hybrid or remote options lower exposure risk, particularly when influenza activity is high in the community.

If a team member develops mild symptoms but remains well enough to work, remote access allows continuity without exposing colleagues. Gradual return to the office after recovery also reduces relapse and supports sustainable productivity. This approach is particularly relevant for administrative and professional roles.

5. Promote General Health and Wellbeing

Strong overall health supports immune function and recovery. Employers can promote practical wellbeing initiatives such as:

  • Encouraging adequate sleep through balanced workloads and realistic deadlines
  • Promoting access to healthy food options in workplace kitchens or events
  • Supporting physical activity through flexible schedules or wellbeing challenges
  • Providing access to employee assistance programmes for stress management

WorkSafe New Zealand recognises the connection between worker wellbeing and performance. Supporting staff wellbeing contributes to resilience during winter months.

6. Clear Communication During Flu Season

Clear and consistent communication supports early action. Staff benefit from knowing:

  • When the flu season begins and when local cases are increasing
  • Common symptoms of influenza and when to stay home
  • How and where to access workplace vaccination programmes
  • gGuidance for protecting vulnerable family members at home

Providing trusted information from Health New Zealand and the Ministry of Health reduces confusion and encourages informed decision making. Access frequently asked questions and other resources here.

Stay Safe this Winter

Reducing staff sick leave requires a layered approach. Vaccination reduces severity and spread. Early timing strengthens protection. Hygiene practices lower transmission. Supportive policies prevent wider outbreaks. Flexible work options limit exposure. Wellbeing initiatives strengthen resilience. Clear communication ensures staff understand their role in prevention.

Workplaces that act early before winter peaks are better positioned to maintain productivity and protect their teams. Contact Onsite Health to book your workplace flu vaccinations and take a practical step towards reducing staff sick leave this year.

People scheduling flu vaccination appointments

Onsite Health Now Taking 2026 Flu Vaccination Bookings

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We are now taking bookings for 2026 workplace flu vaccinations across Auckland. If you are planning ahead for the New Zealand Flu Season, now is the time to act. Employers who book early secure their preferred dates and ensure staff receive protection before winter peaks.

The Ministry of Health advises that influenza vaccination is the best way to reduce the risk of severe illness and hospitalisation. Vaccination also reduces disruption in workplaces during winter.

If you are looking to book workplace flu vaccinations in Auckland, we have opened our 2026 schedule.

NZ flu season timeline for 2026

Planning around the New Zealand Flu Season is important. Influenza activity usually increases from May and continues through winter, often peaking between June and August according to Health New Zealand.

We began taking bookings shortly after Waitangi Weekend. This allows employers to secure dates well before the winter rush.

We begin providing workplace flu vaccinations from early April. We also start issuing flu vouchers to clients in early April for remote staff or those who cannot attend onsite clinics.

The optimal time to receive a flu vaccination is April and May (Immunisation Advisory Centre). Protection develops around two weeks after vaccination. Early vaccination ensures immunity is in place before influenza spreads widely in the community.

Demand increases rapidly through May. Many workplaces aim to complete vaccinations before June. We usually finish taking bookings for onsite workplace visits at some point in June. Booking early reduces the risk of missing out on preferred dates and optimal immunity coverage for your staff.

How the workplace flu vaccination process works

Our process is simple and designed to minimise disruption to your workplace.

1. Contact us

After you contact us, we will organise a suitable time for one of our Vaccinator to visit your workplace. We confirm the number of staff and discuss any site specific requirements.

    2. Preparation

    Before the visit, you will receive confirmation of the date and time. We provide posters and pamphlets to promote the clinic internally. We also send reminder emails to the organiser. Clear communication improves attendance and reduces last minute questions.

    3. On the day

    Our Vaccinator arrives prior to the agreed time with all required clinical equipment. Staff complete a consent form before vaccination.

    We require a first aid certified staff member to be present onsite during the clinic. This ensures workplace health and safety requirements are met. Vaccination is administered by an authorised vaccinator in line with Ministry of Health guidelines. The process is efficient and usually takes only a few minutes per person.

    4. After vaccination

    Staff are advised to remain onsite for at least 15 minutes after receiving the vaccine. This allows monitoring for any immediate reactions, which are uncommon. Our Vaccinator remains onsite for 15 minutes after the last vaccination has been given.

    For staff who are absent on the day, flu vouchers can be ordered. These vouchers allow employees to receive their vaccination at selected GP clinics or pharmacies across New Zealand.

    Why book early for 2026

    Early vaccination means better protection. The Ministry of Health recommends annual influenza vaccination because influenza strains change each year and immunity from previous seasons declines over time. Protection takes around two weeks to develop after vaccination, so receiving the vaccine in April or May allows immunity to build before winter transmission increases. When staff are vaccinated before influenza begins circulating widely, workplaces are better protected during peak months.

    Demand for workplace flu vaccinations increases quickly once flu cases begin appearing in the media and in local communities. Each year we see a sharp rise in booking requests during May. Organisations that delay often find their preferred dates are no longer available. Booking early for 2026 reduces pressure later in the season and ensures vaccination can be completed at the most effective time.

    Early planning also supports staff awareness. When employers communicate vaccination dates well in advance, uptake improves. Higher participation reduces the likelihood of workplace outbreaks and staff sick leave.

    Taking action before winter protects productivity, reduces unexpected absence, and supports staff wellbeing throughout the 2026 New Zealand Flu Season.

    To book workplace flu vaccinations across Auckland, contact Onsite Health today and secure your 2026 vaccination date before our schedule fills.

    Health professional applies plaster to vaccinated area on professional woman

    What Global Flu Trends mean for New Zealand’s 2026 Flu Season

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    2025-2026: A Severe Northern Hemisphere Flu Season

    Health authorities across the Northern Hemisphere have reported a strong and early flu season. The United States, United Kingdom and parts of Europe recorded high case numbers and pressure on emergency departments during their winter months. The US Centers for Disease Control and Prevention recorded a sharp rise in emergency visits and admissions linked to influenza, particularly among older adults and young children. The UK Health Security Agency also confirmed sustained flu activity, with hospitals managing increased pressure during peak weeks.

    According to reporting by National Geographic, a new H3N2 influenza A subclade has played a key role in the rise in cases, with genetic changes that may reduce how well prior immunity recognises the virus. Influenza A H3N2 strains were linked with more severe illness in older adults. Experts interviewed by National Geographic explained that flu seasons often move in a pattern between hemispheres, with strains circulating south before spreading north.

    “There’s a ping-pong effect between Northern and Southern Hemisphere flu seasons… Whatever is there eventually makes its way up to us, and vice versa.” — Marcus Pereira, infectious diseases physician. 

    New Zealand does not experience flu in isolation. Influenza viruses travel with people, and global movement allows strains to spread between countries within days. The Northern Hemisphere winter provides valuable data for scientists and public health planners.

    What This Means for the New Zealand Flu Season

    The World Health Organisation monitors circulating strains across both hemispheres. Each year, experts review genetic sequencing data, hospital trends, and laboratory reports. They then recommend which strains should be included in the Southern Hemisphere vaccine. This process allows vaccine manufacturers to prepare doses that target the strains most likely to circulate during our New Zealand Flu Season.

    If H3N2 strains remain dominant overseas, there is a strong chance similar strains will appear here. That does not mean our season will be identical, but patterns often repeat. Keeping track of the flu season in the Northern Hemisphere gives us time to prepare.

    While vaccine effectiveness can vary year to year, public health data still showed that vaccinated people had lower rates of hospitalisation and severe illness. Even in seasons where strain match is not perfect, vaccination reduces risk. That remains an important message as we look ahead to our own New Zealand Flu Season.

    What This Means for You

    The New Zealand Flu Season typically runs from May to September, with peak transmission in winter. Flu spreads easily through coughing, sneezing, close contact, and contaminated surfaces. Workplaces, schools, public transport, and family gatherings all create opportunities for exposure.

    A severe flu season overseas can signal a challenging winter at home. For most healthy adults, influenza causes fever, body aches, cough, and fatigue that can last a week or more. Many people require three to five days off work. Some need longer recovery. For older adults, pregnant women, young children, and people with long term medical conditions, flu can lead to pneumonia or hospital admission.

    Time off work affects productivity and income. Businesses feel the impact when multiple staff members are absent at once. Families feel strain when parents are unwell while caring for children. Not everyone with influenza shows obvious symptoms, yet they can still pass the virus on.  Protecting yourself also protects grandparents, infants, and those with weakened immune systems.

    Vaccination remains the most effective way to reduce serious illness from influenza. It does not prevent every case, but it lowers the chance of severe disease, hospitalisation, and complications. In seasons with strong viral activity, this protection becomes even more important.

    How Onsite Health Can Help

    Higher vaccination rates within a workplace can reduce the spread of influenza between colleagues. Fewer sick days mean more consistent productivity and less disruption to operations. Employers also send a clear message that they value staff wellbeing.

    Onsite Health supports workplaces across Auckland by delivering flu vaccinations to staff in workplace settings. Our clinical team follows national guidelines and works to ensure safe administration for staff. We make the process simple, efficient, and accessible. Workplace vaccination programmes reduce barriers such as time, travel, and cost concerns. When vaccination is convenient, uptake improves.

    Preparing early for the New Zealand Flu Season allows individuals and businesses to stay ahead of potential disruption. Global flu trends give us warning. Vaccination gives us protection. By acting before winter peaks, we reduce risk to ourselves, our workplaces, and the vulnerable people in our communities. Book now to protect your staff from influenza this winter.