Symptoms

A rotavirus infection usually starts within two days of exposure to the virus. Early symptoms are a fever and vomiting, followed by three to seven days of watery diarrhea. The infection can cause abdominal pain as well.

In healthy adults, a rotavirus infection may cause only mild signs and symptoms or none at all.

When to see a doctor

Call your child's doctor if your child:

• Has diarrhea for more than 24 hours
• Vomits frequently
• Has black or tarry stool or stool containing blood or pus
• Has a temperature of 102 F (38.9 C) or higher
• Seems tired, irritable or in pain
• Has signs or symptoms of dehydration, including dry mouth, crying without tears, little or no urination, unusual sleepiness, or unresponsiveness

If you're an adult, call your doctor if you:

• Can't keep liquids down for 24 hours
• Have diarrhea for more than two days
• Have blood in your vomit or bowel movements
• Have a temperature higher than 103 F (39.4 C)
• Have signs or symptoms of dehydration, including excessive thirst, dry mouth, little or no urination, severe weakness, dizziness on standing, or lightheadedness