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目的 了解徐州市不同地区大肠埃希菌O157∶H7出血性肠炎流行季节动物的发病及带菌率。方法 在不同流行强度的地区设调查点 ,调查猪、鸡、牛、羊的发病情况 ;并采集其粪便 ,用免疫磁珠法进行病原分离培养。结果 6个调查点共调查动物 5 65头 ,发病 3 5头 ,罹患率 6 19% ;共采集猪、鸡、牛、羊等动物粪便标本 90 1份 ,分离出大肠埃希菌O157∶H713 0株 ,总带菌率 14 4% ,其中以牛、羊带菌率较高 ,分别为 2 1 9%、 19 4%。结论 在大肠埃希菌O157∶H7出血性肠炎流行季节各种动物都有不同比例发病 ,不同地区的动物带菌率也不尽相同。提示加强动物大肠埃希菌O157∶H7发病率及带菌率的调查对疫情分析与疾病控制有重要意义。
Objective To understand the prevalence and incidence of Escherichia coli O157: H7 epidemic seasonal animals in different areas of Xuzhou. Methods The investigation points were set up in areas with different epidemic intensity to investigate the incidence of pigs, chickens, cattle and sheep. The stool samples were collected and the pathogen was isolated and cultured by immunomagnetic beads method. Results A total of 5 65 animals were investigated in the 6 survey sites, with a disease incidence of 35 and a prevalence of 6 19%. A total of 901 fecal samples from pigs, chickens, cattle and sheep were collected and Escherichia coli O157: H713 0 Strain with a total carrier rate of 14 4%, of which cattle, sheep with higher rates of bacteria were 21.9%, 19 4%. Conclusions In the epidemic season of Escherichia coli O157: H7 haemorrhagic colitis, all kinds of animals have different proportions of incidence, and the animal carrying rates in different areas are also different. Prompted to strengthen the animal Escherichia coli O157: H7 morbidity and incidence of investigation of the epidemic situation analysis and disease control is of great significance.