据美国食品安全新闻网消息，美国、荷兰与新西兰三国的研究人员完成的一项研究发现，有14%的诺瓦克病毒感染由不洁食物引发。

　　在世界范围内，诺瓦克病毒是肠胃炎爆发的主要原因之一。仅仅在美国，诺瓦克病毒约造成1900-2100万感染病例，5.6-7.1万住院病例，570-800例死亡。最主要的感染症状包括：腹泻、呕吐、恶心以及胃痛。其他症状包括发烧、头痛等。

　　部分原文报道如下：

　　According to new work by researchers from the Netherlands, New Zealand and the U.S. Centers for Disease Control and Prevention （CDC）， about 14 percent of all norovirus outbreaks are attributed to contaminated food.

　　Noroviruses are one of the leading causes of gastroenteritis worldwide. In the U.S., the virus causes 19-21 million illnesses, 56,000-71,000 hospitalizations and 570-800 deaths.

　　The most common symptoms of a norovirus infection are diarrhea, vomiting, nausea and stomach pain. Other symptoms can include fever, headache and body aches. Anyone can be infected with norovirus and get sick, but illnesses can be especially serious for young children and older adults.

　　原文链接：http://www.foodsafetynews.com/2015/03/researchers-estimate-food-causes-14-percent-of-norovirus-outbreaks-worldwide/