轻型麻疹的临床和流行病学特征

1980年在辽阳市两个地区调查了86例麻疹，其中有13例轻型麻疹。他们临床表现都有发热，但7例无柯氏斑，4例未出皮疹，6例无上呼吸道卡他症状，全部无眼结合膜充血，平均病程6天，恢复快，无合并症。在发病3~8天有11例（84.6%）能测到1：2以上的HI抗体。病后HI抗体76.9%≥1：64。因此，笔者认为：轻型麻诊一般都发生在既往曾接种过麻疹疫苗的儿童中，临床表现以发热为主，伴有其他一些不典型症状，中毒症状轻、病程短、恢复快。发病早期血中即可产生HI抗体，病后可达≥1：64。

The Clinical and Epidemiological Feature of Mild Measles

In 1980, 86 cases of measles including 11 cases of the mild type,at two communities of Liaoyan City were investigated.All the mild cases had fever however without hyperemia in conjuntive or severe systemic intoxication. Among the 11 mild cases, 7 did not show koplik''s spots, 4 had no examthemata and 6 showed no catarrh of upper respiratory tract The average duration of illness was 6 days. Serological study showed that antibody titre of mild cases appeared earlier and went up faster than that of ordinary measles cases. HI-Antibody with titre more than 1:2 was detectable on the 3rd-8th days after the onset of disease among all mild cases (84.6%). In convalescence,76.9% of the mild cases harboured HI-antibody with titre not less than 1:64. Commonly it was believed that vaccination against measles led to the development of mild measles among those children who were later infected. The main symptoms of such cases were fever and some atypical signs.The duration of illness was short and the patients recovered rapidly. Symptoms and signs indicating systemic intoxication were mild.