麻疹活疫苗普遍接种以来,虽然麻疹发病率明显降低,控制了大的流行,但近年仍有个别地区呈局部流行,并发现有轻型麻疹病例,造成临床诊断困难。1981年6～7月间,南京市浦口区某小学发生一批以发热、出疹为主要症状的病儿,临床诊断疑似麻疹。当地防疫部门也不能排除是麻苗接种质量不好所导致麻疹流行。我们于7月上旬至9月初深入现场进行调查,目的想弄清这次流行是否麻疹?以及该校麻苗免疫效果 Although the prevalence of measles has been significantly reduced and the prevalence has been controlled since the universal immunization of live measles vaccine, there are still some endemic areas in recent years where cases of mild measles have been found and clinical diagnosis is difficult. From June to July 1981, a group of sick children with fever and rash as the main symptoms occurred in a primary school in Pukou District, Nanjing City, and the suspected measles was diagnosed clinically. Local epidemic prevention departments can not rule out the epidemic of measles caused by poor quality vaccination. We conducted in-depth investigations from early July to early September in order to find out whether the epidemic is measles?