toxoplasmosis (toxo) is an infection caused by a single-celled parasite called toxoplasma gondii. the infection is most commonly acquired from contact with cats and their feces or with raw or undercooked meat. the cdc estimates that more than 60 million people in the u. s. may carry the toxoplasma parasite but very few have symptoms because a healthy immune system usually keeps the parasite from causing illness.
what is toxoplasmosis?