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为了前瞻性评价流感和肺炎球菌疫苗预防住院和死亡的效力 ,作者于 1 998年 1 2月至 1 999年 5月在瑞典斯德哥尔摩 6 5岁以上人群中进行了流感和 2 3价肺炎球菌疫苗大规模接种效果的前瞻性研究斯德哥尔摩所有 6 5岁以上的老人( 2 596 2 7人 )均参加了预防流感和肺炎球菌感染的免
In order to prospectively evaluate the efficacy of influenza and pneumococcal vaccines in preventing hospitalizations and deaths, the authors conducted a large scale influenza-2 pneumococcal vaccine in Stockholm, Sweden between January 1998 and May 1999 in a population of over 65 years Prospective Study of Scale Inoculation All elderly people over 65 in Stockholm (2 596 27) participated in the prevention of influenza and pneumococcal infections