This pathogen does not have a cyst phase and must be directly passed from host to host quickly before desiccation. It is found in the vagina and in the male urinary tract. It is usually transmitted by sexual intercourse but can be transferred by toilets and towels. If the normal acidity of the vagina changes, the protozoan may overgrow the normal microbial population of the vagina and cause trichomoniasis. Males rarely have any symptoms.
Females have a discharge of pus.
The life cycle of these organisms is complex. The stage that is involved in the transmission of the organism is called a sporozoite. Cats are a critical part of the life cycle. It is usually acquired by eating undercooked meats but can also be acquired by contact with cat feces. Primary problem is a congenital infection of fetus, resulting in either a stillbirth or a child with severe brain damage or vision problems.