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Symptoms

Prevent Dehydration

Drink plenty of liquids to replace fluids that are lost from throwing up and diarrhea.

Sports drinks and other drinks without caffeine or alcohol can help with mild dehydration. But, these drinks may not replace important nutrients and minerals. Oral rehydration fluids that you can get over the counter are most helpful for mild dehydration.

If you think you or someone you are caring for is severely dehydrated, call a doctor.

Norovirus causes inflammation of the stomach or intestines or both. This is called acute gastroenteritis.

The most common symptoms—

  • diarrhea
  • throwing up
  • nausea
  • stomach pain

Other symptoms—

  • fever
  • headache
  • body aches

If you have norovirus illness, you can feel extremely ill and throw up or have diarrhea many times a day. This can lead to dehydration, especially in young children, older adults, and people with other illnesses.

Most people with norovirus illness get better within 1 to 3 days.

Symptoms of dehydration—

  • decrease in urination
  • dry mouth and throat
  • feeling dizzy when standing up

Children who are dehydrated may cry with few or no tears and be unusually sleepy or fussy.

Learn more about norovirus


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