Taenia saginata is regularly found in North American cattle herds, but reporting is limited and indigenous human cases are rare. Taenia solium is exceedingly rare or absent from Canadian and Alaskan swine herds (Schantz 1996). The number of reported imported cysticercosis cases is increasing however, probably as a result of immigration from endemic areas (e.g. Central and South America) and improved diagnostic capacity (e.g. Western blot, CT scan, MRI). Hymenolepis nana has been reported to be endemic in some institutionalized populations in southern Ontario (Tamblyn 1975).
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