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1952年从朝鲜战场归国的美军中共发生7023例传入性疟疾,以间日疟为主,占归国美军的17.5%.当年加州发生的一次疟疾暴发,有35名归国军人发病,其中26人的潜伏期长达217～316天.1966～1972年越南美军归国后共发生18383例传入性疟疾,81.6%为间日疟,81.4%在归国后7～12个月发病.60年代末从埃及带回前苏联的数百例疟疾中,35.1%是在归国后7～12个月发病的.1981～1990年阿富汗苏军归国后共发生7690起间日疟和70起恶性疟,其中37～85%
In 1952, 7023 cases of imported malaria were reported to the U.S. military from the North Korean battlefield, mainly vivax malaria, accounting for 17.5% of the U.S. troops returning to the United States. In a malaria outbreak in California that year, 35 returning soldiers came into the country, 26 of them had an incubation period of 217 to 316 days. Between 1966 and 1972, a total of 18,383 cases of imported malaria were reported after the return of U.S. troops to Vietnam, 81.6% were Plasmodium vivax, and 81.4% developed disease 7 to 12 months after their return. Of the hundreds of cases of malaria that were brought back to the former Soviet Union from Egypt in the late 1960s, 35.1% were reported 7 to 12 months after their return.A total of 7690 vivax malaria and 70 From falciparum malaria, of which 37 to 85%