尽管在西非部分地区麻疹疫苗接种的覆盖率较高,但随着接种者中年长儿童的比例增多,免疫力严重下降而使麻疹流行的事件时有发生。为此,作者对接种儿童暴露于自然麻疹的免疫力作了研究。 这项研究是在塞内加尔的一个农村地区麻疹流行期进行的。该地区有27 000名居民,他们大多为几个家庭聚居在一起,每个家 Despite the high coverage of measles vaccination in parts of West Africa, the incidence of measles epidemics has occasionally taken off as the proportion of older children in the vaccination population increases and the immunity declines dramatically. To this end, the authors studied the immunity of children exposed to natural measles. The study was conducted during a measles epidemic in a rural area of ​​Senegal. There are 27,000 inhabitants in the area, most of whom live together for several families