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目的了解四川省黑热病疫区家犬密度、犬内脏利什曼病感染率和黑热病发病率的关系,为黑热病防治对策提供参考。方法在疫区逐户开展犬密度调查,采用rk39免疫层析试条进行犬血清学检测;收集四川省疾病预防控制中心和各级医院的临床病历和疫区防治措施实施情况。结果 2010-2012年家犬密度为0.43只/户(37 275/87 683);rk39免疫层析试条检测家犬阳性率为10.56%(73/691);四川省黑热病发病率为0.0284%。犬密度与黑热病发病率、犬密度与犬感染率、犬感染率与黑热病发病率分别呈无相关(r=0.3581,P>0.05),高度相关(r=0.8254,P<0.05)、密切相关(r=0.6549,P<0.05)。结论在犬源性黑热病疫区,犬感染率与人群黑热病感染率高度相关,犬密度与黑热病发病率无相关关系。
Objective To understand the relationship between dog’s density, incidence of visceral leishmaniosis and incidence of kala-azar in the SARS epidemic area in Sichuan Province, and to provide reference for the prevention and treatment of kala-azar. Methods The canine density was investigated one by one in the epidemic area. The serological test was conducted by rk39 immunochromatographic test strips. The clinical records of disease prevention and control centers and hospitals at all levels in Sichuan Province were collected for the implementation of prevention and control measures. Results The domestic dog density in 2010-2012 was 0.43 / household (37 275/87 683). The positive rate of rk39 was 10.56% (73/691) in domestic dogs and 0.0284% in Sichuan Province. There were no significant correlations between the dog’s density and the incidence of kala-azar, the dog’s density and the dog’s infection rate, the dog’s infection rate and the incidence of kala-azar (r = 0.3581, P> 0.05) r = 0.6549, P <0.05). Conclusion In the canine genital area, the infection rate of dogs was highly correlated with the prevalence of kala-azar in the population. There was no correlation between the canine density and the incidence of kala-azar.