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Whenever large numbers of people are in close proximity, there is an increased chance of spreading illness. This is especially true in schools, where one student illness can spread quickly enough to cause an outbreak.  For the most serious outbreaks, administrators may even choose to

Norovirus is a highly contagious virus that causes the stomach and intestines to become inflamed. This leads to vomiting and diarrhea. Norovirus is often referred to as the stomach flu or food poisoning. Norovirus is spread by contaminated food and surfaces, and is especially contagio