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目的了解2012年东莞市霍乱等重点感染性腹泻的流行特征及流行优势毒株的分布,为预防控制霍乱等重点感染性腹泻提供参考依据。方法对2012年霍乱等重点感染性腹泻的症状监测和病原学监测结果进行流行病学分析。结果东莞市2012年腹泻病例占门诊就诊病例总数的4.15%,10-12月为流行高峰;全年病原检测阳性268份,阳性率为31.98%,病毒性腹泻病原呈现明显季节性,10-12月以轮状病毒为优势病毒,2-9月以诺如病毒为优势病毒;对腹泻病例占门诊就诊病例总数的比例与病原学检出率进行秩相关分析,相关系数为0.66(P<0.05),呈正相关关系。结论东莞市腹泻流行呈现秋冬季高峰,流行优势毒株随季节变化而变化,0~岁年龄组婴幼儿是病毒性腹泻感染的重点人群。
Objective To understand the epidemiological characteristics of major infectious diarrhea and the distribution of epidemic-dominant strains in Dongguan City in 2012 and provide a reference for the prevention and control of the major infectious diarrhea. Methods The epidemiological analysis of the symptoms and pathogen surveillance of major infectious diarrhea such as cholera in 2012 was conducted. Results In 2012, the incidence of diarrhea in Dongguan accounted for 4.15% of the total number of outpatient visits and the peak was in 10-12 months. The positive rate of pathogen detection was 268 in the whole year with the positive rate of 31.98%. The pathogen of viral diarrhea showed obvious seasonal and 10-12 Rotavirus was the predominant virus in February and norovirus was the predominant virus in February-September. The rank correlation analysis of the proportion of outpatients with diarrhea and pathogen detection showed a correlation coefficient of 0.66 (P <0.05 ), Was a positive correlation. Conclusions The prevalence of diarrhea in Dongguan shows the peak in autumn and winter, and the prevalence of strains varies with the seasons. Infants in the 0 ~ age group are the major groups with viral diarrhea.