ABSTRACT
Toxoplasma gondii is an obligate intracellular protozoan that causes significant morbidity and mortality in both humans and animals. In 1908 the parasite was first described as the causative agent of a significant zoonosis (1,2), and in 1928 the organism was first isolated from a human (3). However, its life cycle was not established until 1969, when it was shown that T. gondii was a coccidian and the definitive host was found to be the cat (4).
