流感病例很少,但专家们敦促在10月底前接种疫苗,以防止突发性爆发。 Flu cases are low, but experts urge vaccination by late October to prevent sudden outbreaks.

根据废水监测,美国截至2025年10月的流感活动仍然很低,但卫生官员警告流感季节可能突然开始。 Flu activity remains low in the U.S. as of October 2025, according to wastewater monitoring, but health officials warn flu seasons can begin suddenly. 疾控中心和医疗专家敦促在10月底前接种疫苗,特别是为9岁以下儿童接种疫苗,因为他们可能需要两剂疫苗。 The CDC and medical experts urge vaccination by late October, especially for children under 9 who may need two doses. 预防三、四种菌株的流感疫苗是安全和有效的,每年预防数百万疾病和数千人死亡。 The flu vaccine, which protects against three or four strains, is safe and effective, preventing millions of illnesses and thousands of deaths annually. 尽管有证明的好处,但只有32%住院的流感病人上个季度接种了疫苗。 Despite proven benefits, only 32% of hospitalized flu patients were vaccinated last season. 严重副作用极为罕见,流感的风险远远超过任何疫苗的风险。 Serious side effects are extremely rare, and the risk from the flu far outweighs any vaccine risk.