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根据我县1950～1989年疫情资料,对疟疾的发病率进行年度分析,经果报告如下。自50年代以来,我县疟疾发病率逐渐下降,平均发病率50年代747.00/10万,60年代55.56/10万,70年代14.73/10万,80年代0.41/10万。在这40年中,1955年出现第1次流行高峰,1963年出现第2次流行高峰,1971年出现第3次流行高峰,1974年以后发病率均在1/万以下。40年疫情说明疟疾的发病有一定的流行周期,峰与峰间相隔8年。说明大流行年不会突然到来,而是从发病率低年度逐渐上升到大流行年后又逐年下降。这与人群对疟疾普遍易感
According to the county epidemic data from 1950 to 1989, an annual analysis of the incidence of malaria, the results reported below. Since the 1950s, the incidence of malaria in our county has gradually decreased. The average incidence was 747.00 / 100,000 in the 1950s, 55.56 / 100,000 in the 1960s, 14.73 / 100,000 in the 1970s and 0.41 / 100,000 in the 1980s. During these 40 years, the first epidemic peak appeared in 1955, the second epidemic peak occurred in 1963, the third epidemic peak occurred in 1971, and the incidence rate after 1974 was below 1 in 10,000. The 40-year epidemic shows that the incidence of malaria has a certain epidemic cycle, with peaks and peaks separated by 8 years. Indicating that the year of the pandemic will not suddenly come, but from a low incidence of the year gradually increased to a year after the pandemic declines. This is generally associated with malaria in the population