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四川省疟疾经40余年防治,其流行发生了很大变化。它既反映了防治效果,也反映了与媒介的关系。目前96.8％的病例分布于以嗜人按蚊为主要媒介的地区,其中55.5％的病例又集中在嗜人按蚊在人房按蚊组成中比例较高的少数县,它仅占总县数的7.5％。结果显示疟疾流行与媒介按蚊种群有密切关系。
After more than 40 years of malaria control in Sichuan Province, its epidemic has undergone great changes. It not only reflects the effectiveness of prevention but also reflects the relationship with the media. At present, 96.8% of cases are distributed in the areas where Anopheles anthropophagus is the major medium, and 55.5% of them are concentrated in a few counties where Anopheles anthropophagus has a higher proportion of Anopheles, Of the 7.5%. The results show that malaria epidemic is closely related to the population of Anopheles vectors.