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A 38-year-old member asked:

Please tell me can giardia or giardiasis infection go away on its own after a while?

2 doctor answers2 doctors weighed in
Dr. Jose Prieto-hernandez
Infectious Disease 36 years experience
Rarely: Most need treatment with Metronidazole to get rid of it or Tinidazole
Dr. Heidi Fowler
Psychiatry 25 years experience
Usually not: Giardiasis is a waterborne illness caused by Giardia parasite. Sx's – there may be no sx's or diarrhea, oily floating stool, gas, nausea, vomiting & abdominal cramps. If untreated it can cause bloody diarrhea, dehydration & weight loss. Diagnosis- via blood test for antibodies, stool antigen & checking stool for ova & parasites.Tx can include metronidazole, tinidazole & nitazoxanide.

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Last updated Jul 12, 2020
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