欧洲疾控中心：传染病威胁报告（2026年1月17日至23日，第4周）（英文版）

The number of people visiting their general practitioner with symptoms of respiratory illness is elevated in the majority of reporting countries. This indicates that there is widespread respiratory virus circulation in the European Union/European Economic Area (EU/EEA). Influenza virus circulation is high and affecting all age groups, with the peak appearing to have passed in several countries. Influenza A(H3N2) remains the dominant subtype, followed by A(H1N1)pdm09. An overall decreasing tre