Monitoring the Spread of Influenza Sub-Strain 'K'
November 22, 2025
Scientists are monitoring the spread of the influenza sub-strain 'K', which appears to be affecting many countries. The European Centre for Disease Prevention and Control (ECDC) issued a statement emphasizing the importance of vaccines, despite concerns about their effectiveness. Flu cases are rising earlier than usual in Europe, with children aged 5-14 being particularly vulnerable. Currently, vaccines seem to provide some protection against severe illness. Experts continue to monitor the situation responsibly.