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1987年,四川东北片六县发生“稻田型”钩体病例62030人,发病率965.31/10万,性比例为1.24:1,农民占89.60％,青壮年为主,人和动物间主要流行七日热群(型)。黄疸出血型次之。导致爆发的原因是菌群更迭、毒力变异、预防接种面小量少、人群抗体水平低等。提出的综合指数、防治研究的规范化等观点有助于钩体研究。建议加强对七日热群钩体病的监控。
In 1987, there were 62,030 cases of “paddy-type” leptospira occurred in six counties in northeastern Sichuan, with a prevalence of 965.31 / lakh, a sex ratio of 1.24: 1, and peasants accounting for 89.60% of all young adults, with a prevalence of 7 Hot group (type). Hemorrhage followed by jaundice. The causes of the outbreak were the change of flora, the variation of virulence, the small amount of preventive inoculation surface and the low antibody level in the population. The proposed composite index, the standardization of prevention and control research contribute to the hook body research. It is suggested to strengthen the surveillance on the seven-day hot cluster leptospirosis.