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目的了解浙南沿海地区腹泻病例霍乱弧菌感染和外环境霍乱弧菌污染情况,为防控霍乱传播流行提供科学依据。方法通过现场采样和标本分离培养方法,对温州市所属沿海地区医院肠道门诊腹泻病例及其环境标本进行霍乱弧菌分布调查。结果 2010-2013年度从温州市104个肠道门诊45 921份病人标本中分离出5份霍乱弧菌阳性,感染率为0.01%。从210份与霍乱病人密切接触者标本中分离出2例霍乱弧菌阳性,阳性率为0.95%。从9 497份水体和食品标本中分离出4例霍乱弧菌阳性,阳性率0.04%,分离出的霍乱弧菌有O139群、O1群稻叶型、O1群小川型等。结论浙南沿海地区为霍乱老疫区,人群和外环境目前仍受霍乱弧菌感染潜在威胁,应加强肠道门诊早期诊断,采取积极防控措施。
Objective To understand the epidemic situation of Vibrio cholerae in diarrhea cases of southern Zhejiang coastal area and to provide a scientific basis for prevention and control of cholera epidemic. Methods Vibrio cholerae samples were collected from diarrhea cases and their environmental samples in the gut of outpatient clinics in the coastal areas of Wenzhou City through field sampling and specimen isolation and culture methods. Results From 2010 to 2013, 5 samples of Vibrio cholerae were isolated from 45 921 samples from 104 gut clinics in Wenzhou city, the infection rate was 0.01%. Two cases of Vibrio cholerae positive were isolated from 210 samples of patients in close contact with cholera with a positive rate of 0.95%. From 9 497 water samples and food samples, 4 cases were positive for Vibrio cholerae. The positive rate was 0.04%. Vibrio cholerae isolates were O139, O1 and O1 Ogawa. Conclusion The southern Zhejiang coastal area is an epidemic area of cholera. The population and external environment are still potentially threatened by Vibrio cholerae infection. Early diagnosis of intestinal outpatients should be strengthened and active prevention and control measures should be taken.