RT Book, Section A1 Sabella, Camille A2 Kline, Mark W. SR Print(0) ID 1182904393 T1 Balantidiasis T2 Rudolph's Pediatrics, 23e YR 2018 FD 2018 PB McGraw-Hill Education PP New York, NY SN 9781259588594 LK accesspediatrics.mhmedical.com/content.aspx?aid=1182904393 RD 2024/10/10 AB Balantidium coli is the largest protozoan parasite to cause infection in humans. Balantidiasis is a zoonotic infection found in pigs, rodents, cattle, reptiles, birds, fish, annelids, arthropods, and many simian hosts. Domestic pigs are the most important reservoir host and typically the source of human infection. Malnourished individuals and those suffering from concurrent infection are at greater risk of developing balantidiasis.