Infectious Disease Compendium

Balantidium coli


A protozoan.

Epidemiologic Risks

Travel to S. America and SE Asia, especially the Philippines. The normal host is the pig.

Eating or drinking pig shit. You would be surprised how much of your food has trace pig shit on it.


Most are asymptomatic, some will have explosive Hershey squirts (diarrhea, for you more fastidious readers).


Tetracycline for 10 days is treatment of choice, iodoquinol for 20 days OR metronidazole for 5 days can be tried.


Last update: 05/05/18