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流感的预防和治疗已经有了实质性的改善,但它仍然是全球发病率和死亡率增高的一个重要因素。虽然流感相关的死亡数差异很大,但是估计美国平均每年流感相关的死亡人数约为50,000例。各国推荐的流感疫苗接种程序也有区别,在美国, 目前推荐的接种人群除高危个体和那些有可能将病毒传播给高危个体的人群外,还包括50岁以上的人群、6-23个月的健康儿童和与0-23个月儿童密切接触的人群;而在欧洲部分国家以及其他国家中,一般只推荐高危人群和65岁及以上的老年人
Influenza prevention and treatment have been substantially improved, but it remains an important factor in the global morbidity and mortality. Although the number of flu-related deaths varies widely, it is estimated that the average number of flu-related deaths in the United States is about 50,000 per year. The flu vaccination programs recommended by each country are also different. In the United States, currently recommended vaccinated populations include those over 50 and 6-23 months of age, in addition to individuals at high risk and those at risk of transmitting the virus to high-risk individuals Children and people in close contact with children aged 0-23 months, while in some European countries and other countries generally only high-risk groups and elderly 65 years and older are generally recommended