Although outbreaks occur throughout the year, norovirus outbreaks tend to peak during winter months. Norovirus is the most common cause of gastrointestinal illness in Iowa.  Norovirus is extremely infectious and can spread directly from person to person via contaminated food, or from contact with contaminated surfaces.  Proper handwashing is important at all times but, especially after using the restroom, and before preparing food and eating food.  Staying home while ill with vomiting and/or diarrhea is critical to prevent spread of the disease.  

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