Does the new flu variant increase the severity of our illness? Facts and tips at a glance.
This year's flu season has arrived earlier than usual, raising concerns about whether winter will be harsher. The dominant strain, A(H3N2) subclade K, appeared early in Europe, raising questions about immunity and the severity of the illness.
According to virologist Adam Meijer from the RIVM (National Institute for Public Health and the Environment), natural immunity against this strain may be lower, which could lead to an increase in the number of infections. However, there is no evidence that people are getting more severe illness compared to previous years. Data from the UK indicates that symptoms are still similar to past flu seasons.
Health experts emphasize that vulnerable groups remain the most susceptible to complications. The elderly, pregnant women, and individuals with chronic diseases may face serious health issues every year - not due to the severity of the strain, but because of their weakened resistance.
There is still some uncertainty about the effectiveness of the vaccine against the new strain. The vaccine was developed this year before the emergence of the A(H3N2) subclade K. Laboratory studies suggest that antibody production may be less effective against it, but practical data from ECDC and RIVM confirm that the vaccine still provides good protection against severe cases. Therefore, vaccinations remain the most important recommendation, especially for at-risk groups.
In addition to vaccination, simple hygiene measures remain essential. Regular hand washing and covering the mouth and nose when coughing or sneezing with the elbow help reduce the spread of infection.