2024-2025 Influenza (Flu) Season in Hong Kong

Preparing for the 2024-2025 Influenza Season in Hong Kong

As we approach the 2024-2025 flu season in Hong Kong, it is essential to understand the unique challenges and necessary precautions to mitigate the impact of influenza. The flu season typically peaks from January to March and again from July to August. With the lingering effects of the COVID-19 pandemic and decreased population immunity, we must be vigilant and proactive in our health practices this year.

Summary of Global and Local Influenza Activity

According to the World Health Organization (WHO), influenza activity has been reported globally, with influenza A viruses being the most common. Specifically, A(H1N1)pdm09 and A(H3N2) strains have been prevalent. In Hong Kong, the 2023-2024 winter influenza season saw a notable increase in cases starting from the second week of January, with a peak in early February. Although the activity decreased slightly in late February, it remained elevated in early March.

OT&P’s Vaccination Recommendations

Vaccination remains the most effective method to prevent influenza and its complications. The Scientific Committee on Vaccine Preventable Diseases (SCVPD) recommends the following for the 2024-2025 season:

1. Get Vaccinated

   The quadrivalent vaccine is advised, which covers two strains of influenza A (H1N1 and H3N2) and two strains of influenza B. Flu vaccines are particularly crucial for high-risk groups, including healthcare workers, elderly individuals, pregnant women, residents of residential care homes, and those with chronic medical conditions. More information about flu shots in Hong Kong can be found on our vaccine page. 
   
   

2. Timing of Vaccination

   It is best to get vaccinated early in the season, preferably by September or October, to ensure protection throughout the winter and summer peaks.
   
   

3. Children’s Vaccination

   Children aged six months to eight years who have not previously been vaccinated require two doses, administered four weeks apart. Those who have been vaccinated previously need only one dose.
   
   

Our Suggested Protective Measures

In addition to vaccination, several other measures can help reduce the spread of influenza:

1. Hygiene Practices

   Regular handwashing, using hand sanitisers, and disinfecting commonly touched surfaces can significantly reduce transmission.
   
   

2. Mask-Wearing

   Wearing masks in crowded or enclosed spaces helps prevent respiratory virus spread.
   
   

3. Stay Home When Unwell

   If you exhibit symptoms such as fever, cough, or body aches, you should stay home and seek medical guidance to avoid spreading the virus.
   
   

References

1. Scientific Committee on Vaccine Preventable Diseases. (2023, April 19). Recommendations on Seasonal Influenza Vaccination for the 2023-2024 Season in Hong Kong. Retrieved September 6, 2023, from https://www.chp.gov.hk/files/pdf/recommendations_on_seasonal_influenza_vaccination_for_the_2023_24_season_in_hong_kong_19apr.pdf