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鉴于近年上半年无疟史发病日渐增多(1972年调查约占上半年发病数的90%左右),考虑在间日疟流行区长潜伏期虫株并非少见,为了证实长潜伏期虫株的存在,及其所占的比例,更好地制定防疟措施,我们于1974年6月至1975年5月,在驻××地区部队,进行了间日疟原虫长潜伏期虫株流行病学观察。现将初步观察结果报告如下:
In view of the increasing incidence of non-malaria cases in the first half of the recent years (the survey in 1972 accounted for about 90% of the incidence in the first half of the year), it is not uncommon to consider the potential larvae of P. vivax in endemic areas. In order to confirm the existence of long- Its proportion, to better develop anti-malaria measures, we from June 1974 to May 1975, in the XX troops in the epidemiological observation of long-duration parasites of Plasmodium vivax. The preliminary observations are reported as follows: