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本文对西华县流行性乙型脑炎(简称乙脑)的流行因素进行了初步分析。当地的优势蚊种为淡色库蚊及骚扰阿蚊。淡色库蚊和骚扰伊蚊是当地乙型脑炎的传播媒介。健康人群乙脑抗体阳性率随年龄增加而增长的趋势。其中1/2～2岁年龄组阳性率最低。经过一个流行季节,仔猪的隐性感染率达81.83%;有9.19%的人获得隐性感染。显隐性感染之比为1:1059。据此,本文还提出了针对性的乙脑预防措施。
This article conducted a preliminary analysis of the epidemic factors of Japanese encephalitis (JE) in Xihua County. The dominant mosquito species are Culex pipiens and Harassment mosquito. Culex pipiens pallens and Aedes aegypti are vectors for local Japanese encephalitis. The positive rate of Japanese encephalitis B in healthy population increases with age. The lowest positive rate was found in 1/2 ~ 2 years old group. After a popular season, the latent infection rate of piglets reached 81.83%; 9.19% of people got latent infection. Significant recessive infection ratio of 1: 1059. Accordingly, this article also proposed targeted JE prevention measures.