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这项研究观察10年来美国不同健康维护组织对社区居住老人进行的18个组群研究中样本池中的713 872人一季的观察,明确了流感疫苗应用可显著减少社区居住老人因肺炎或流感住院的风险和死亡的危险。接种疫苗后因
This study examined 713,872 person-times of a sample pool in 18 cohort studies of community-based elderly over a 10-year period in various health care organizations in the United States. It was clarified that the flu vaccine application significantly reduced community-resident elderly patients hospitalized with pneumonia or influenza The risk and the risk of death. After vaccination due to