By transporting these agents, they act as passive vectors for them. In addition to the contamination of food and water, humans can ingest feces in the following circumstances. Some individuals consider coprophagia as a sexual turn-on. This practice is globally referred to as scat . The term iatrogenic refers to situations that result from the treatment of patients .
Invasive instruments suc h as catheters can be contaminated by feces especially in coma patients.
The term iatrogenic refers to situations that result from the treatment of patients . Invasive instruments suc h as catheters can be contaminated by feces especially in coma patients. Trypanosoma cruzi Trypanosoma cruzi is the agent of American trypanosomiasis also called Chagas disease. Clinical Avian Medicine and Surgery . WB Saunders Company, 397-407.