一个严重的美国流感季节袭击了1 500万人,主要是儿童,引发了健康警告。 A severe U.S. flu season has hit 15 million people, mainly children, prompting health warnings.

美国正经历一个严重的流感季节,据卫生官员说,报告了1 500万例流感病例。 The U.S. is experiencing a severe flu season, with 15 million cases reported, according to health officials. 儿童受到的影响格外严重,患病率和住院率更高。 Children have been disproportionately affected, facing higher rates of illness and hospitalizations. 公共卫生专家敦促接种疫苗和谨慎行事,特别是针对幼儿和有基本健康状况的儿童。 Public health experts are urging vaccination and caution, especially for young children and those with underlying health conditions.