作　　者： (杨德全）; (朱九超）; (齐新永）; (鞠厚斌）; (周锦萍）; (刘春国）; (王靖飞）;

机构地区： 上海市动物疫病预防控制中心,上海201103

出　　处： 《中国动物检疫》 2017年第9期7-10,共4页

摘　　要： 2016年7月1日,上海市某蛋鸡场62日龄蛋鸡出现发病和死亡现象,多次用抗生素治疗无效。为详细了解鸡场发病情况,分析导致疫病发生的风险因素,以便及时提出行之有效的防控建议,通过询问、现场调查和实验室诊断等方式开展了紧急流行病学调查;采用描述性流行病学方法,对疫情特点、发病风险因素进行了分析。实验室诊断结果显示,Ⅰ群血清4型腺病毒核酸阳性。调查发现:发病的前一周,该地气温波动剧烈,造成鸡只应激;鸡场生物安全体系不健全,无针对车辆和人员的消毒措施。结合临床症状、病理剖检和实验室诊断结果,确诊该鸡场暴发了心包积水-肝炎综合征,是由Ⅰ群血清4型腺病毒引起的。通过注射特异性卵黄抗体及对症治疗,对可能引起此次暴发的风险因素进行控制,疫情得到了有效控制。 The morbidity and mortality of62-day-old laying hens in a certain layer farm occurred on July1st,2016,in Shanghai City.No obvious effect was obtained by repeatedly antibiotic treatment.In order to know the morbidity in detail,to analyze the possible risk factors of the disease,and to put forward prevention and control measures timely,an emergency epidemiological investigation on this outbreak was carried out by field investigation in combination with laboratory diagnosis.Results showed that group serotype4nucleic acid was positive.It was found that the temperature fluctuated sharply a week before the onset of the disease,which caused the chicken to be stressed.In addition,the biosafety system in this poultry farm was not perfect,and there was no vehicle and personnel disinfection measures,which increased the risk of adenovirus infection.According to the clinical symptoms,pathological examination and laboratory diagnosis,diagnosis of the chicken farm in the hydropericardium hepatitis syndrome was caused by group serum adenovirus type4.By injecting specific yolk antibody and symptomatic treatment,the risk factors that might cause the outbreak were controlled,and the epidemic situation was effectively controlled.

关 键 词： 蛋鸡 心包积水 肝炎综合征 群血清 型腺病毒 暴发调查 风险因素