Objective To investigate, treat and analyze of population viral gastroenteritis incident caused by Norwalk like virus.

目的对一起诺瓦克样病毒引起的群体性胃肠炎进行调查和分析。

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Objective To summarize the experience dealing with unknown diseases by the investigation and confirmation of collective acute gastroenteritis with Norwalk-like virus.

目的通过对诺瓦克样病毒胃肠炎集体爆发的调查和证实，总结处理不明原因疾病的经验。

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The Veedam's failing grade is uncommon in the cruise ship industry, an industry that has tried in recent years to keep on-board environments sanitary after illnesses like the Norwalk virus sickened passengers and caused a public relations nightmare.

CNN: Cruise ship fails CDC health inspection