What are the signs and symptoms of chronic giardiasis?

Updated: Oct 01, 2018
  • Author: Hisham Nazer, MBBCh, FRCP, DTM&H; Chief Editor: Burt Cagir, MD, FACS  more...
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Symptoms of chronic infection include chronic diarrhea, malaise, nausea, and anorexia. Weight loss, as extensive as 10-15 pounds in an adult, occurs in approximately 66% of symptomatic patients. Chronic sporadic diarrhea may continue for months. Postinfection lactase deficiency also is a common finding, occurring in 2-40% of cases.

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