Norovirus, sometimes referred to as the winter vomiting bug, is the most common cause of gastroenteritis. Blood is not usually present. Fever or headaches may also occur. This usually develops 12 to 48 hours after being exposed.
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Norovirus, sometimes referred to as the winter vomiting bug, is the most common cause of gastroenteritis. Blood is not usually present. Fever or headaches may also occur. This usually develops 12 to 48 hours after being exposed.