• A parasitic protozoal infection caused by Balantidium coli that involves the large intestinal mucosa. Signs and symptoms include nausea, vomiting, diarrhea, abdominal pain, fever, headache and weight loss.
  NCI Thesaurus
  U.S. National Cancer Institute, 2021
• A protozoan intestinal infection that is caused by Balantidium coli; the symptoms may include watery diarrhea or dysentery, and the spectrum of illness ranges from asymptomatic infection to fulminant and fatal disease.
  NICHD Pediatric Terminology
  U.S. National Cancer Institute, 2021
• Infection by parasites of the genus BALANTIDIUM. The presence of Balantidium in the LARGE INTESTINE leads to DIARRHEA; DYSENTERY; and occasionally ULCER.
  NLM Medical Subject Headings
  U.S. National Library of Medicine, 2021
• Balantidiasis (also known as balantidiosis) is defined as large-intestinal infection with Balantidium coli, which is a ciliated protozoan (and the largest protozoan that infects humans). B coli is known to parasitize the colon, and pigs may be its primary reservoir.
  Medscape
  WebMD, 2019
• Balantidiasis is an infectious disease, rare in western countries. It is caused by Balantidium coli, a single celled parasite (ciliate protozoan) that is usually associated with intestinal infection in areas associated with pig rearing. It infects humans occasionally, mostly immunocompromised patients. Some infected people may have no...
  NIH Genetic and Rare Diseases
  National Center for Advancing Translational Sciences