上海市1986年达到了基本消灭疟疾后,1987～1990年进行了全面和重点监测。发热病人疟原虫血检,平均阳性率为0.32％,病例呈散在分布。居民疟原虫血检平均带中率为0.07％。外来流动人口抽样监测,4年的疟原虫带虫率分别为0.013％、0.32％、0.14％和0.06％。复查1983～1987年先后发病的疟疾患者296人,原虫阳性率为0。未发现嗜人按蚊;中华按蚊蚊群比和吸血趋性与常年无差异。结果表明本市基本消灭疟疾后的成果是巩固的,但仍存在不稳定因素,外源性输入病例逐年增加,外来流动人口中的带虫率高于当地居民,对上海市构成了潜在威胁,当前监测应抓住疟疾现症病人和流动人口管理。 After the basic malaria elimination reached Shanghai in 1986, a comprehensive and focused monitoring was carried out from 1987 to 1990. Fever patients with blood tests of Plasmodium, the average positive rate was 0.32%, scattered cases were scattered. Residents Malaria parasite blood test with an average rate of 0.07%. Sampling and monitoring of migrant population, the rates of parasites of Plasmodium in four years were 0.013%, 0.32%, 0.14% and 0.06%, respectively. A review of 296 malaria patients who had been infected between 1983 and 1987 showed a positive rate of 0 for protozoa. Anopheles anthropophagus was not found. Anopheles sinensis mosquito population and blood-sucking tendency had no difference with perennial. The results showed that the achievement of malaria elimination basically was consolidated in this Municipality but there were still unstable factors. The incidence of exogenous input increased year by year. The rate of prey infestation among migrants was higher than that of local residents, posing a potential threat to Shanghai. Current surveillance should capture the management of malaria-infected patients and migrants.