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为了解人类细小病毒B19(简称B19)感染情况,作者对1984年10～12月在美国密西西比州一所中学暴发的第五病进行了调查。调查采用寄函讯调查表的方法进行,共给该校寄调查表1572份(占教职员和学生总数的89%,仅有249人(近16%)作了回答。研究对象为30名可疑为B19感染的孕妇。在分娩前后均采集血样的22名孕妇中,认为有12人增加了感染B19的危险,2人在妊娠期出现过皮疹,有10名孕妇的家庭成员中至少有1名成员患第五病。这些孕妇中有
In order to understand the infection of human parvovirus B19 (B19), the author investigated the fifth outbreak in a secondary school in Mississippi, USA in October-December 1984. The survey was conducted using a questionnaire sent by the school, which sent 1572 questionnaires (accounting for 89% of the total number of faculty and students and only 249 (nearly 16%)) to the questionnaire sent by the school. The subjects were 30 suspicious B19 Infected Pregnant Women Of the 22 pregnant women who collected blood samples before and after childbirth, 12 were considered at increased risk of B19 infection, 2 had a rash during pregnancy, and at least one member of the family of 10 pregnant women Suffering from the fifth disease in these pregnant women