Abstract
Since the parasite was first identified in 1908 in rodents in North Africa1 and in rabbits in Brazil,2 Toxoplasma gondii has been the subject of much study, both biologic and medical. This interest was heightened by the early demonstration of similar-appearing organisms in many animal species and occasionally in human beings. One of the most intriguing such reports was that in 1923 in Czechoslovakia by Janků,3 who apparently described such parasites in the tissues of an infant with hydrocephalus who died soon after birth. Toxoplasma-like parasites were especially prominent in the retinas. Four years later, Torres,4 in Brazil, reported the . . .