The clinical spectrum of intestinal E. histolytica infection ranges from an asymptomatic carrier state to severe invasive disease. Asymptomatic cyst carriage occurs with E. histolytica as well as ...

For more information on any of these, see the Centers for Disease Control Web site (www.cdc.gov). Giardia: Giardiasis refers to a syndrome of diarrhea, excess gas, and abdominal cramping. It is caused ...

Competing Interests: The author has been involved in clinical trials of albendazole and nitazoxanide, and has received research funding for these trials from SmithKline Beecham Pharmaceuticals and ...