What Causes Diarrhea?
3. Viral Infections
There are a number of viruses that can infect the digestive system, potentially resulting in some very unwelcome symptoms, including diarrhea. Such infections are also relatively common and can affect people of all ages. However, they are usually only mild and the patient should make a full recovery within a week or so.
Culprits include noroviruses, which are the most common cause of illness from contaminated food. Rotaviruses are also a common culprit, and the most common cause of viral gastroenteritis in children. Diarrhea from rotaviruses can be severe, so the patient should be monitored, especially if they are young.
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