群体性诺瓦克样病毒性胃肠炎疫情分析

Epidemiological analysis on norwalk-like viral gastroenteritis in Gu angzhou in 2003

摘要:
目的分析广州市2003年群体性诺瓦克样病毒性胃肠炎流行特征, 加强该病的预防控制工作。
方法采用现场流行病学调查方法, 对广州市2003年群体性诺瓦克样病毒性胃肠炎疫情进行调查分析。
结果 2003年10月~12月底, 广州市共报告8起群体性诺瓦克样病毒性胃肠炎疫情, 共计病例396例, 每起疫情均从部分患者粪便标本中检出诺瓦克病毒核酸或抗原。
结论 RT-PCR的阳性检出率大于ELISA法, 粪便标本检出率高。诺瓦克样病毒性胃肠炎常引起暴发疫情, 及时采取控制措施可避免疫情扩散。

Abstract:
Objective To discuss the epidemical characteristic of Norwalk-like viral gastroenteritis in Guangzhou city in 2003.
Methods To analyze the Norwalk-like viral gastroenteritis cases reported in 2003 by the method of field epidemiological investigation.
Results There were 8 outbreaks of Norwalk-like viral gastro enteritis and 396 cases in guangzhou from Oct to Dec 2003.Each outbreak was approved to be Norwalk-like virus nucleic acid or antigen positive in some stool specimens.
Conclusion The positive rate of RT-PCR is larger than that of ELISA, and stool is preferer.The Norwalk-like viral gastroenteritis tend to occur in outbreaks.Taking control measures as soon as possible can avoid diffusing.