I was having stomach pain and some nausea. The doctor found bacteria in my stomach, and I was diagnosed with a gastric ulcer.

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 E.

A large case-control study from China found that people with Parkinson’s disease were significantly less likely to test ...