Healthy Living 7 min read

Winter Immunisations: The Importance of Flu & COVID-19 Jabs

Published on 10 January 2026
Winter Immunisations: The Importance of Flu & COVID-19 Jabs

Protect yourself during winter months. Discover eligibility for free NHS winter vaccines and why annual updates are required.

As the winter months arrive, the circulation of respiratory viruses typically increases, placing additional pressure on the NHS and putting vulnerable individuals at risk of serious illness. Annual immunisation remains the most effective defense against severe influenza and COVID-19, helping to prevent hospitalization and protect our local communities.

Who is Eligible for Free NHS Jabs?

The NHS offers free seasonal flu vaccines and COVID-19 boosters to groups who are at a higher risk of complications from these viruses. The table below outlines the eligibility criteria:

Vulnerable Category NHS Flu Vaccine NHS COVID-19 Booster Recommended Booking Timeline
Aged 65 and over Eligible Eligible September onwards
Long-Term Conditions (e.g., Asthma, Diabetes) Eligible Eligible September onwards
Pregnant Women Eligible Eligible Throughout pregnancy
Frontline Health and Care Workers Eligible Eligible September onwards

Why Annual Boosters are Necessary

Unlike some childhood immunisations that provide long-lasting protection, flu and COVID-19 vaccines require annual updates. This is due to two main factors:

  • Viral Mutation: Influenza and COVID-19 viruses evolve constantly. Each year, global health organizations monitor circulating strains and update the vaccines to match them as closely as possible.
  • Waning Immunity: The protective antibodies produced by vaccination naturally decline over time, meaning an annual booster is needed to restore defense levels ahead of the winter season.

What to Expect After Your Vaccination

Most side effects from the flu and COVID-19 vaccines are mild and typically resolve within a few days. Common symptoms include mild soreness at the injection site, a low-grade fever, or feeling slightly tired. These are normal signs that your immune system is responding to the vaccine.

Booking your winter vaccines is straightforward. Visit our Book Appointment page to secure your slot at your nearest Wise Pharmacy branch today.

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