论文部分内容阅读
流感和肺炎被认为是老年人尤其是那些有慢性病史的老人的致病和致死的重要原因。然而流感和肺炎疫苗在许多国家很少应用。已知这种预防接种对老人的健康有部分不确切的益处;而其在预防需住院的发病和死亡的效果还未被预期评估过。因此我们开展这项检验流感和肺炎的预防接种对65岁及以上个体有何效果的为期3年的前瞻性研究。这里首先报道从1998年11月1日至1999年5月31日半年的结果。
Influenza and pneumonia are considered to be important causes of illness and lethalness in the elderly, especially those in the elderly with chronic conditions. However, influenza and pneumonia vaccines are rarely used in many countries. This vaccination is known to have some inaccurate benefits on the health of the elderly; its effectiveness in preventing morbidity and mortality requiring hospitalization has not yet been estimated. Therefore, we conducted a prospective, 3-year, prospective study examining the efficacy of vaccination against influenza and pneumonia in individuals 65 and older. Here we first report the results for the six-month period from 1 November 1998 to 31 May 1999.