当前流感仍处于季节性流行水平

Group 1 - The emergence of a new variant K sub-branch of the H3N2 influenza virus is leading to a more severe flu season in some countries [1] - In China, H3N2 is the dominant strain, with 3362 out of 3439 positive samples in southern provinces and 3535 out of 3563 in northern provinces being H3N2 [1] - Current flu activity is at a seasonal level, and there are no new infectious diseases caused by unknown pathogens detected [1] Group 2 - The national flu center's antigenic analysis shows that 43.6% of H3N2 strains are similar to the WHO-recommended vaccine component, indicating high vaccine match [2] - The flu vaccine covers multiple subtypes, and it is recommended to get vaccinated early to reduce the risk of infection and severe illness [2] - The flu activity in China is rising rapidly, with many provinces reaching moderate to high epidemic levels, particularly among children aged 5-14 [3] Group 3 - Misconceptions about treating flu symptoms, such as the rush to reduce fever, can hinder proper diagnosis and treatment [3] - Antibiotics like amoxicillin and cephalosporins are ineffective against viral infections, highlighting the need for targeted treatment [3]