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→Taenia spp of Humans
=== ''T. saginata'', the Beef Tapeworm of Humans ===
=== ''T. saginata'', the Beef Tapeworm of Humans ===
[[Image:T. saginata.jpg|thumb|right|150px|''T. saginata'' - Wikimedia Commons]]
The adult in the human small intestine is unarmed, that is, no hooks on the scolex. Humans are infected by eating undercooked beef. Cattle are infected by ingesting eggs on pasture, or from contaminated utensils (e.g. calves from the milk-bucket). Transmission:
The adult in the human small intestine is unarmed, that is, no hooks on the scolex. Humans are infected by eating undercooked beef. Cattle are infected by ingesting eggs on pasture, or from contaminated utensils (e.g. calves from the milk-bucket). Transmission:
[[Image:Taenia solium scolex.jpg|thumb|right|150px|''T. solium'' scolex - Wikimedia Commons]]
[[Image:Taenia solium scolex.jpg|thumb|right|150px|''T. solium'' scolex - Wikimedia Commons]]
The adult tapeworm, which occurs in the human small intestine, has hooks on the scolex. The life-cycle is similar to that of T. saginata, except that the pig is the intermediate host. Heavy infections in pigs may be detected in vivo by inspecting the tongue for cysticerci. T. solium is particularly prevalent in communities where pigs are allowed to scavenge freely around human habitation. This species is particularly dangerous as the cysticerci (known as ‘measles’), which normally occur in the pig, can also develop in human tissues (brain and musculature). This may happen by swallowing eggs from the environment or, in people carrying a tapeworm, as a result of eggs being brought forward in the alimentary tract by retro-peristalsis.
The adult tapeworm, which occurs in the human small intestine, has hooks on the scolex. The life-cycle is similar to that of T. saginata, except that the pig is the intermediate host. Heavy infections in pigs may be detected in vivo by inspecting the tongue for cysticerci. T. solium is particularly prevalent in communities where pigs are allowed to scavenge freely around human habitation. This species is particularly dangerous as the cysticerci (known as ‘measles’), which normally occur in the pig, can also develop in human tissues (brain and musculature). This may happen by swallowing eggs from the environment or, in people carrying a tapeworm, as a result of eggs being brought forward in the alimentary tract by retro-peristalsis.
== Taenia spp of the Dog ==
== Taenia spp of the Dog ==