美国本轮流感季感染人数超11000000+

Core Insights - A rare flu epidemic is sweeping across the United States, with infection rates reaching the highest levels since the COVID-19 outbreak, particularly affecting children and adolescents [1] - The CDC reports that at least 11 million people have been infected and 5,000 have died from the flu this season, with emergency room visits for flu-like symptoms at their highest since early 2020 [1] - The current flu season is driven by a new variant known as "super flu," which has limited vaccine protection, leading to increased susceptibility among the population [1] Group 1 - The flu season typically peaks from December to February, starting in the southeastern U.S. and spreading north and west [3] - The current flu season is still in its early stages and is expected to last until May, with the highest emergency room visits concentrated in the eastern U.S. [3] - Despite the mismatch between the vaccine and the circulating virus strains, experts emphasize that vaccination remains the best method to prevent severe infections, hospitalizations, and deaths [3][4] Group 2 - Adolescents are particularly affected, with over 8% of emergency visits related to the flu, and the proportion of visits for children aged 5 to 17 exceeding 20% [2] - So far this flu season, 9 children have died from the flu, with the number of deaths expected to rise as the season progresses [2] - Last year, over 280 children died from the flu, marking the highest number of deaths in a non-pandemic season [2]