Seĭbil' V B, Voroshilova M K, Boĭko V M, Troshina L D
Vopr Virusol. 1975 Jan-Feb(1):87-91.
The paper presents the results of 3-year observations of the status of herd immunity to poliomyelitis in 7 towns of the Moscow region. In individual years antibody for poliomyelitis virus of 3 types was found in 63-74% of the examined children and from 2.7 to 7.5% of children were triple-negative. Insufficient levels of herd immunity to poliovirus types I and III were found. Some factors are analysed which could have some influence on the decline of herd immunity.
本文介绍了对莫斯科地区7个城镇脊髓灰质炎群体免疫状况进行3年观察的结果。在个别年份，63% - 74%的受检儿童体内发现了3种类型的脊髓灰质炎病毒抗体，2.7% - 7.5%的儿童三项检测均为阴性。发现针对I型和III型脊髓灰质炎病毒的群体免疫水平不足。分析了一些可能对群体免疫下降产生影响的因素。
