![]() ![]() Humans cannot be infected by ingesting larval tapeworms from ungulates. These can be ingested after handling contaminated soil or contaminated canid scat or fur and then touching the face or eating before washing hands. Yes, humans are not a natural host for the parasite but can be infected by ingesting eggs which are passed with the feces from an infected canine. Only a few cases have been documented in Wyoming elk,moose and one mule deer, but the definitive host origin is unknown.Ĭan humans get infected with Echinococcus granulosus? In the United States, the northern biotype of Echinococcus granulosus has been found in several states including Wyoming. It is endemic in most sheep raising areas of the world. The southern or domestic biotype circulates between dogs and domestic ungulates, especially sheep. This is thought to be the biotype seen in Wyoming wildlife and does not typically infect domestic livestock. The northern biotype above 45˚ latitude circulates between canids (wolf, coyote, dog) and cervids (moose, elk, deer, caribou, reindeer). Where is Echinococcus granulosus found? Is it found in Wyoming?Įchinococcus granulosus has a worldwide distribution with two recognized biotypes. Intermediate hosts ingest the eggs while grazing, where the eggs hatch and develop into larvae. Adult tapeworms, 3-5 mm long, produce eggs which canids pass in their feces. Definitive hosts are exposed to larval tapeworms when ingesting infected ungulates. Canids (dogs, wolves, coyotes, foxes) are definitive hosts where larval tapeworms mature and live in the small intestine. Ungulates (deer, elk, moose, domestic sheep, and domestic cattle) are intermediate hosts for larval tapeworms. ![]() Wildlife in Wyoming / More Wildlife / Wildlife Health / Wildlife Disease Information / What is this? Common Questions From Hunters about Harvested Animals / Hepatic Lipidosis Echinococcus TapewormĮchinococcus granulosus is a parasitic tapeworm that requires two hosts to complete its life cycle. ![]()
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