Goats as natural intermediate hosts of Hammondia hammondi

The infectivity of Hammondia hammondi (the G-8 strain) to goats was studied to determine the origin of this strain, because it was originally isolated from feces of a cat fed goat muscles. No clinical signs except fever were observed in kids after oocyst inoculation. When cat fed muscles of these kids, the cats excreted oocysts. The prepatent period was 7 to 9 days and the patent period was 6 to 12 days. From these experiments it became clear that the G-8 strain was infectious to goats. The origin of this strain is very probably the goat, which thus is one of the natural intermediate hosts of H. hammondi.