【作者】 罗华； 杨万进； 马宗成； 向辉； 傅荣生； 向新志； 赵怡楠； 向晓霞； 龚地萍； 吴羿；

【Author】 LUO Hua;YANG wan-jin;MA Zong-cheng;XIANG Hui;FU Rong-sheng;XIANG Xin-zhi;ZHAO Yi-nan;XIANG Xiao-xia;GONG Di-ping;WU Yi;Chongqing Wanzhou district Center for Disease Contral and Prevention;

【机构】 重庆市万州区疾病预防控制中心公卫科； 贵州省遵义医学院预防医学系； 重庆市开州区疾病预防控制中心； 重庆医科大学公共卫生与管理学院； 重庆市疾病预防控制中心；

【摘要】 目的:分析渝东北一起农村避暑居民区饮用水质被粪水污染引起急性胃肠炎罹患情况及流行特征。方法:于2017年7月24-27日对疫情发生地开展现场卫生学调查,对出现的急性胃肠炎病人开展流行病学个案调查,以腹泻≥3次/日者作为病人判定依据,应用SPSS17.0对其疫情资料进行统计分析。结果:其居民罹患率56.52%(65/115),以腹泻、腹痛、腹胀、恶心、呕吐、头痛、头晕、乏力、里急后重为主要临床表现。7月24日发病最多占44.62%(29/65);40岁～组发病最多占38.46%(25/65);农民发病最多占50.77%(33/65);不同时间、不同年龄、不同职业发病差异均有统计学意义(χ~2=12.446,P=0.006 χ~2=10.788,P=0.026 χ~2=8.032,P=0.045)。实验室检测出厂水及末梢水各1件,总大肠菌群、耐热大肠菌群、大肠埃希氏菌、菌落总数均超标,尤以耐热大肠菌群超标严重(>1600MPN/100mL)。结论:此起疫情发生在农村避暑居民区,罹患率较高,以中年农民发病为主要人群,切断饮水污染途径,发病情况呈较快下降趋势或停止发病。更多还原

【Abstract】 Objective:To study and analyze the prevalence and epidemiological characteristics of an acute gastroenteritis caused by the contamination drinking water in rural summer residential areas in northeast Chongqing.Method:Field environmental hygiene survey and case investigation for acute gastroenteritis patients were conducted on epidemic area on July 24-27,2017.A case of diarrhea ≥3 beats/day was selected as the basis for the patient’s judgment,and SPSS17.0 was used statistical analysis.Results:The attack rate is 56.52%(65/115) of the residents.The main clinical manifestations were diarrhea,abdominal pain,abdominal distension,nausea,vomiting,headache,dizziness,weakness and tenesmus.The incidence of morbidity on July 24 accounted for 44.62%(29/65) of the total.The morbidity of age group more than 40 was 38.46%(25/65).The morbidity of farmers was 50.77%(33/65).The differences of morbidity incidence among times,age groups and occupations had a significantly statistics(χ~2=12.446,P=0.006;χ~2=10.788,P=0.026;χ~2= 8.032,P=0.045).The factory water and terminal water were tested,which the total coliform,heat-resistant coliform,Escherichia coli,and total number of colonies exceeded the standard,especially the heat-resistant coliform group heavily exceeded the standard(>1600MPN/100mL).Conclusion:The outbreak occurred in rural summer residential areas with high attack rate,and middle-aged farmers as the main population with higher morbidity incidence.The incidence would present a rapid decline in the trend or stop the disease after cutting off the polluted approach of drinking water.更多还原