美国流感活动水平持续上升 感染病例约750万例

Core Viewpoint - The flu activity level in the United States is on the rise, with significant increases in cases, hospitalizations, and deaths reported this flu season [1] Group 1: Flu Statistics - Approximately 7.5 million flu cases have been reported in the U.S. this flu season [1] - There have been around 81,000 hospitalizations due to the flu [1] - The death toll from the flu has reached approximately 3,100 [1]