青海乐都牦牛暴发炭疽疫情的诊断流行病学调查与控制

Diagnosis , Epidemiological Investigation and Control of the Outbreaks of Anthracnose in Yaks in Ledu , Qinghai

2017年10月,青海省海东市乐都区某牧户饲养的牦牛发生急性死亡,通过现场调查、实验室检测和流行病学调查,确诊为牦牛炭疽疫情。此次疫情存栏易感动物207头(只、匹),发病21头,死亡19头,发病率10.14%,死亡率9.18%,致死率90.48%,发病死亡牦牛均来源于同一牧户。通过封锁、移动控制、疫情排查、扑杀、消毒、无害化处理及紧急免疫等疫情处置工作,疫情得到及时控制。

Acute death of yaks were found in Ledu District Qinghai Haidong City in October 2017.It was confirmed as an anthrax outbreaks of yaks through laboratory detection,field investigation and epidemiological investigation.The survey found that there were 207 susceptible animals,with 21 sick animals and 19 deaths.The incidence rate was 10.14%,the mortality rate was 9.18%,and the mortality rate was 90.48%.The yaks was infected by Clostridium welchii at the same time.The epidemic was under control through blockade,mobile control,epidemic investigation,culling,disinfection,innocuous treatment and emergency immunization.