2016年重庆市诺如病毒感染疫情流行特征分析

发布时间：2018-06-20 06:30

本文选题：诺如病毒 + 疫情　；参考：《现代预防医学》2017年18期

【摘要】：目的分析重庆市2016年诺如病毒肠炎疫情的流行特征,为制定疫情防控策略提供依据。方法收集全市2016年区县报告处置的诺如病毒肠炎疫情,采用描述性流行病学方法进行分析。结果 2016年全市共报告122起,发病1637例,无死亡;全年5个月有疫情发生,有明显的冬季发病高峰;主城9区均有疫情,疫情数占83.61%(102/122);99.18%发生在城市学校和托幼机构;人-人传播占80.33%,为主要的传播类型;病原学基因分型GII.2型占98.71%;67.81%患者白细胞总数升高,65.00%中性粒细胞升高,50.00%淋巴细胞升高;因病就医和住院分别占发病人数的70.00%和3.66%;事件易误诊为"疑似食物中毒"。结论诺如病毒疫情有明显的冬季发病高峰季节性特征,2016年重庆诺如病毒肠炎疫情在主城区处于流行状态;诺如病毒GII.2型为流行的优势毒株;大部分患者白细胞升高。
[Abstract]:Objective to analyze the epidemic characteristics of norovirus enteritis in Chongqing in 2016 and to provide evidence for making epidemic prevention and control strategy. Methods the reported cases of norovirus enteritis were collected and analyzed by descriptive epidemiological method. Results A total of 122 cases were reported in 2016, with no death and 1637 cases. There were epidemic cases in 5 months of the whole year, and there were obvious peaks in winter. All the 9 districts in the main city had the epidemic situation, which accounted for 99.18% of the epidemic cases in urban schools and nurseries. The percentage of human to human transmission was 80.33, the main type of transmission was GII.2, the percentage of total leukocytes increased in 67.81% of the patients and the percentage of neutrophils increased in 50.00% of the patients. Medical treatment and hospitalization accounted for 70.00% and 3.66%, respectively, and the incident was easily misdiagnosed as "suspected food poisoning". Conclusion the epidemic situation of norovirus has the seasonal characteristic of peak in winter. The epidemic situation of norovirus enteritis in Chongqing in 2016 is in the epidemic state in the main urban area, the type GII.2 of norovirus is the dominant strain of epidemic, and the leukocyte of most patients is increased.
【作者单位】：重庆市疾病预防控制中心;
【分类号】：R181.3;R512.5

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