Objective Analyse the relationship between hospital present infection rate, different departments, diseases types and other interrelated factors and infection rate of review survey.
目的分析医院感染现患率与科室、病种及其他相关因素之间的关系，以了解医院感染现患率和回顾性调查感染率的差别。
Conclusions Sporadic and fulminant NLV infections are present in Guangzhou. The children have the infection in their infancy, and the infection rate increases sharply with age.
结论广州地区存在NLV引起的散发和暴发性非菌性胃肠炎，当地儿童在婴幼儿期即获得NLV感染，感染率有随年龄增加而升高的趋势。
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