The New Flu Vaccine: What Singaporeans Need to Know
The influenza (flu) vaccine is updated regularly to keep up with the flu viruses circulating around the world. For 2026, there are some important updates — and in Singapore, the flu vaccine is also supported by national recommendations, subsidies and Medisave. Here’s a clear guide for you and your family.
Why Flu Vaccine Changes Every Year
Flu viruses are always evolving, so the World Health Organization reviews global data and updates the recommended vaccine strains each season. Because Singapore experiences flu activity throughout the year, the Ministry of Health (MOH) makes both Northern Hemisphere and Southern Hemisphere vaccine formulations available, so you can be protected against the strains most likely to be circulating locally.
The Key Change: A Move to Trivalent Vaccines
The biggest update is a shift towards trivalent flu vaccines, which protect against three strains instead of four. This is because one of the influenza B lineages (B/Yamagata) is no longer circulating, so it’s no longer included. The updated vaccines now focus protection on the strains that genuinely pose a risk — two influenza A strains (H1N1 and H3N2) and one influenza B strain (Victoria lineage).
What’s New for 2026
The latest flu vaccines have shifted towards a trivalent formulation — protecting against three strains instead of four. This is because one of the influenza B lineages (B/Yamagata) is no longer circulating and has been removed. The updated vaccines now target the strains that genuinely pose a risk: two influenza A strains (H1N1 and H3N2) and one influenza B strain (Victoria lineage). For 2026, both influenza A components have also been refreshed to better match currently circulating viruses.
Who MOH Recommends Getting Vaccinated
Under Singapore’s National Childhood Immunisation Schedule (NCIS) and National Adult Immunisation Schedule (NAIS), annual or per-season flu vaccination is recommended especially for those at higher risk of serious illness, including:
- Adults aged 65 and above
- Children aged 6 months to under 5 years
- Pregnant women
- People with chronic medical conditions such as diabetes, heart disease, asthma and other chronic lung, liver or blood disorders
- Residents of long-term care facilities
For most people, flu vaccination is recommended once a year, though some individuals may be advised to vaccinate as each new seasonal formulation becomes available, since immunity decreases over time and the circulating strains change.
Using Medisave and Subsidies
In Singapore, the flu vaccine is part of the National Adult Immunisation Schedule, which means Medisave can be used to help pay for it, and subsidies are available for eligible groups at polyclinics and CHAS GP clinics. This makes staying protected more affordable — do check your eligibility when booking your appointment.
Why It’s Worth Getting
Even a “mild” flu can lead to serious complications, particularly for the elderly, young children, pregnant women and those with chronic conditions. The flu vaccine reduces your risk of infection, lessens the severity of symptoms if you do fall ill, and helps protect more vulnerable people around you. As the vaccine is updated each year, an annual shot keeps your protection up to date.
Stay Protected This Season
If you’re due for your flu vaccination or unsure which option is right for you, speak to your doctor. They can recommend the most suitable vaccine and advise on subsidies or Medisave use.
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