美国暴发疫情

Core Insights - The latest data from the CDC indicates that the current flu season in the U.S. has seen at least 20 million cases, with at least 270,000 hospitalizations and 11,000 deaths reported [1][2]. Group 1: Flu Activity and Trends - Seasonal flu activity in the U.S. remains high, with a recent uptick in cases after three weeks of decline, as of the week ending January 24 [2]. - The H3N2 strain of the influenza virus is the dominant strain this season, contributing to a significant number of hospitalizations [2]. - The week ending January 24 recorded the second-highest number of flu-related hospitalizations since the 2010-2011 flu season, with hospitalization rates for children under 18 reaching the highest level since that same season [2]. Group 2: Impact on Children - There were 8 new reported flu-related deaths among children in the week ending January 24, bringing the total number of child fatalities this season to 52 [2]. Group 3: Recommendations - The CDC recommends annual flu vaccinations to prevent infections and reduce the risk of severe illness, hospitalization, and death [2]. - Early use of antiviral medications is advised for high-risk groups, including the elderly and those with chronic health conditions, to mitigate severe complications from flu infections [2].