Dicrocoelium dendriticum
The trematode Dicrocoelium dendriticum occurs in cattle, sheep and other ungulates in many parts of the world, including western Canada.
Dictyocaulus viviparus
The lung nematode Dictyocaulus viviparus occurs in cattle in many parts of the world, including Canada. Adult parasites live in the trachea and bronchi.
Fasciola hepatica
The trematode Fasciola hepatica (the common liver fluke of ruminants) infects cattle and sheep, and less commonly a range of domestic and wildlife species, around the world.
Fascioloides magna
The trematode Fascioloides magna (the large liver fluke of ungulates) occurs in several areas of the world, including parts of Canada.
Moniezia and Thysanosoma
The large cestodes Moniezia and Thysanosoma in cattle and sheep, and occasionally free-ranging ungulates, are found around the world, including in Canada.
Setaria species
Nematodes of the genus Setaria infect cattle, sheep, sometimes other domestic animal hosts, and many free-ranging ungulates around the world, including in Canada.
Setaria species — pigs
Nematodes of the genus Setaria infect cattle, sheep, sometimes other domestic animal hosts, and many free-ranging ungulates around the world, including in Canada.
Stephanofilaria stilesi
Nematodes of the genus Stephanofilaria infect cattle in many parts of the world, including Canada.
Taenia saginata and Cysticercus bovis - beef tapeworm of people
The adult cestode Taenia saginata (beef tapeworm) and its larval stage, Cysticercus bovis, occur in people and cattle, respectively, in many parts of the world where beef is part of the human diet.
Taenia saginata and Cysticercus bovis — beef tapeworm of people
The adult cestode Taenia saginata (beef tapeworm) and its larval stage, Cysticercus bovis, occur in people and cattle, respectively, in many parts of the world where beef is part of the human diet.
Thelazia species
The nematode Thelazia (eye worm) occurs in cattle and rarely sheep and goats around the world, including in Canada.
Toxocara vitulorum
The small-intestinal nematode Toxocara vitulorum infects cattle, buffalo, zebu and rarely sheep and goats, mostly in tropical and subtropical climates like those in Africa, India and Asia.
Trichostrongyles and other GI nematodes
The taxonomic family Trichostrongylidae contains most of the important gastro-intestinal nematodes of cattle around the world.