我国流行的间日症,经流行病学调查和实验研究,已证实有长、短潜伏期两株,进一步研究两株间日疟原虫的生物学特性和在各地流行中的分布、比例,引起了许多学者的注意。1975年8月,河南驻马店地区,发生特大洪水灾害,灾后间日疟暴发流行,8—10月居民发病率达 The prevalence of metaphasia in our country has been confirmed to have two strains of long and short incubation period by epidemiological investigation and experimental study. Further study on the biological characteristics of P. vivax and the distribution and proportion of P. vivax between the two strains has caused Many scholars pay attention. August 1975, Henan Zhumadian area, a major floods, malaria outbreaks after the epidemic, the incidence of residents from August to October reached