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1983年11月初,在安徽省和县卓庙乡新景大队大包村,以体外培养的恶性疟原虫(Pf)和猴体内的食蟹猴疟原虫(Pc)为抗原,进行间接荧光抗体试验,检测人群疟疾抗体水平。同时用厚血膜法调查原虫率。当用P_f抗原时,抗体阳性率为67.0％,用P抗原为81.9％。0～15岁的低年龄组,前者为41 8％,后者为62.7％。16岁以上用P_f抗原时为82.6％,P_f为92.7％,两者的阳性率都高。该组人群原虫率高达23.0％,其中单纯感染恶性疟者为16.3％,间日疟为5.6％,两者混合感染者为1.1％。调查结果证实:当地近年发生了比较严重的疟疾流行。
In early November 1983, an indirect fluorescent antibody test was carried out in Dabao Village, Xinjing Brigade, Zhuo Miaoxiang Township, Anhui Province, using P.falciparum (Pc) from P. falciparum (Pf) cultured in vitro and monkey as antigen , Detect malaria antibody levels in the population. At the same time using the thick membrane method to investigate the parasite rate. When P_f antigen was used, the positive rate of the antibody was 67.0% and that of the P antigen was 81.9%. In the low age group of 0-15 years, the former was 41.8% and the latter was 62.7%. The P_f antigen was 82.6% and the P_f was 92.7%. The positive rates of both were high. In this group, the parasite population was as high as 23.0%, of which 16.3% were purely infected with Plasmodium falciparum and 5.6% with Plasmodium vivax, and 1.1% were mixed infections. The survey confirmed that a serious malaria epidemic occurred in the local area in recent years.