Cryptosporidium This very tiny, single-celled parasite affects mostly very young animals of most species, including humans, causing severe or fatal diarrhea lasting several days or longer. It is capable of reinfecting intestinal cells without leaving the host. Additional animations describing the life cycles of parasites that infect the goat. Cryptosporidium Eimeria spp. (coccidian) Dictyocaulus vivparus (lungworm) Muellerius capillaris (goat lung worm) Fasciola hepatica (liver fluke) Haemonchus contortus (barber pole worm) Ostertagia circumcincta (brown stomach worm) Trichostrongylus spp. (hair worm) Nematodirus spp (thin-necked intestinal worm) Oesophagostomum columbianum (nodular worm) Strongyloides papillosus (common thread worm) Parelaphostrongylus tenuis (brain or meningeal worm) Trichuris ovis (whipworm) Moniezia expansa (tapeworm) Return to Goat Biology Animations Return to Goat Biology Home