Core Viewpoint - Domestic influenza activity is showing a significant upward trend, with an increase in reported ILI% and positive rates of influenza virus testing compared to the previous week [1] Group 1: Influenza Activity - Both northern and southern regions of China are experiencing a rise in influenza-like illness (ILI) cases and positive influenza virus test rates [1] - Influenza activity in countries like Japan and the UK remains high, surpassing levels seen in the same period in previous years [1] Group 2: Dominant Strains and Vaccination - The dominant strain in China is the A(H3N2) subtype, prompting updates to the influenza vaccine composition in the new vaccination guidelines [1] - The updated vaccination guidelines provide specific recommendations for vulnerable groups, including pregnant women and individuals allergic to eggs, along with the optimal vaccination timing [1] Group 3: Treatment and Recommendations - Vaccination is highlighted as the most effective method for preventing influenza and reducing severe cases [1] - The influenza diagnosis and treatment protocols are well-established, utilizing antigen and nucleic acid testing for early diagnosis, with treatment options including symptomatic care and antiviral therapy [1] - There is a recommendation to pay attention to influenza vaccines, respiratory medications, and related diagnostic products [1]