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目的通过调查处置某学校一起感染性腹泻暴发疫情,探讨防制对策。方法采用描述性流行病学方法对调查对象的饮水行为、就餐地点等情况进行调查,分析可能的暴露因素。采集部分病例的肛拭标本及校内末梢水、直饮水样和食品开展诺如病毒核酸和致病菌检测。结果某学校发病27人,总罹患率为1.14%。是否饮用直饮水、是否饮用直饮温水的学生发病情况差异均有统计学意义(χ~2=11.9,P<0.05;χ~2=8.02,P<0.05)。8份病例肛拭子标本(阳性率80.00%)和1份直饮温水中的诺如病毒(GII群)核酸检测为阳性。结论完善校园饮用水卫生安全监督管理,防止类似事件发生。
Objective To investigate and deal with a school outbreak of infectious diarrhea outbreak to explore prevention and control measures. Methods Using descriptive epidemiological methods to investigate the behavior of drinking water, dining places and other circumstances to investigate the possible exposure factors. Collect some cases of anal swab specimens and the school of peripheral water, drinking water samples and food to carry out Norovirus nucleic acid and pathogen detection. Results A school incidence of 27 people, the total attack rate was 1.14%. There were significant differences in the incidence of drinking water and drinking warm water (χ ~ 2 = 11.9, P <0.05; χ ~ 2 = 8.02, P <0.05). 8 cases of rectal swab specimens (positive rate of 80.00%) and a direct drinking warm water norovirus (GII) nucleic acid test was positive. Conclusion Improve the supervision and management of drinking water health on campus to prevent similar incidents.