LONDON, UK — Health experts are urging eligible people across England to get vaccinated as new surveillance data points to an earlier-than-usual rise in seasonal flu activity ahead of winter.

The UK Health Security Agency (UKHSA) reported that flu activity during September was higher than in the same period of the previous four winter seasons. Although overall levels remained low, indicators including GP consultations and hospital emergency-department attendances for flu-like illness showed an upward trend.

Health specialists say an early start can extend the period of community transmission, potentially increasing the cumulative number of infections. However, an early flu season does not automatically mean a more severe one, and its eventual impact remains uncertain.

Influenza A subtypes H1N1 and H3N2 are circulating in England, alongside influenza B. Experts say this season’s vaccine covers these strains, although researchers are still assessing whether changes in circulating viruses could affect vaccine performance.

Flu is not the only respiratory illness being monitored. UKHSA has also reported signs of rising COVID-19 activity, while health professionals continue to highlight the importance of protection against respiratory syncytial virus (RSV) for eligible groups.

People who qualify for NHS flu vaccination are encouraged to arrange it promptly. Those who develop flu-like symptoms should, where possible, stay home, practise good hand hygiene and avoid close contact with others while unwell.

The message from health experts is to prepare early rather than wait for winter infections to peak. Vaccination remains an important protective measure, particularly for people at higher risk of complications, although no vaccine offers complete protection.