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Is It a Stomach Flu or Influenza?

(continued)

Who's at Risk for Stomach Flu?

Those at high risk for stomach flu include pregnant women, infants, undernourished and immune-compromised people, and older adults.

In addition, the severity of infectious gastroenteritis depends on your immune system's ability to resist the infection. 

When Should You Call the Doctor About Stomach Flu?

If you experience symptoms of stomach flu and are weak and dizzy, you may be dehydrated. If you cannot drink fluids and continue to lose fluids through fever, vomiting, and diarrhea, you should call your doctor. If you are sleepy or unaware, you should be taken to a doctor or hospital's emergency department as soon as possible. Other signs that warrant medical treatment include:

  • Blood in the vomit or stool
  • Dehydration (check for little to no urination, extreme thirst, lack of tears, and dry mouth)
  • Fever higher than 101 degrees Fahrenheit
  • Swollen abdomen or abdominal pain in the right lower part of the abdomen
  • Vomiting that lasts more than 48 hours
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WebMD Medical Reference

Reviewed by Kimball Johnson, MD on June 11, 2012
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