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目的了解涉禽场所H7N9病毒感染情况,为预测疾病风险提供依据。方法采集家禽养殖场所和活禽交易市场内的禽类粪便、笼具和案板表面等环境标本检测H7N9病毒核酸,对活禽进货来源和病例暴露情况进行调查。结果 5家集镇农贸市场65份禽类环境标本H7N9病毒核酸阳性率为36.92%,2家活禽批发交易点24份禽类环境标本H7N9病毒核酸阳性率为37.50%,家禽散养户及养殖场227份禽类环境标本未检出H7N9病毒核酸,农贸市场活禽主要从湖州、南京等批发市场和养殖场进货。2例人感染H7N9禽流感本地感染病例发病前7天内均有过农贸市场暴露史。结论安吉县家禽交易场所标本H7N9禽流感病毒核酸阳性率较高,可能是人感染H7N9禽流感的感染源。
Objective To understand the H7N9 virus infection in Wickhound and to provide the basis for the prediction of disease risk. Methods H7N9 virus nucleic acid was detected in poultry farms and live poultry market by using excrement, cage and environmental samples from the surface of the board to investigate the origin and case exposure of live poultry. Results The positive rate of H7N9 virus in 65 samples of poultry market was 36.92% in five market towns, the positive rate of H7N9 virus in 24 samples of poultry was 37.50% No H7N9 virus nucleic acid was detected in poultry samples, and the live poultry on the farmer’s market were mainly purchased from wholesale markets and farms in Huzhou and Nanjing. Two cases of H7N9 avian influenza cases of local infection within 7 days before the onset of the farmers market exposure have been. Conclusions The positive rate of H7N9 avian influenza virus in the poultry venues in Anji County is high, which may be the source of human infection of H7N9 bird flu.