Rotavirus disease is most common in infants and young children, but adults and older children can also become infected with rotavirus. Once a person has been exposed to rotavirus, it takes about 2 days for symptoms to appear.
- Abdominal pain
Vomiting and watery diarrhea may last from 3 to 8 days in a child who is infected with rotavirus. Additional symptoms include loss of appetite and dehydration (loss of body fluids), which can be especially harmful for infants and young children.
Vaccinated and unvaccinated children may develop rotavirus disease more than once because there are many different types of rotavirus and because neither vaccine nor natural infection provides full immunity (protection) from future infections. Usually a person’s first infection with rotavirus causes the most severe symptoms.
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