The cestodes tapeworms Taenia saginata beef tapeworm and T. Taenia solium eggs can also cause cysticercosis. Taeniasis is the infection of humans with the adult tapeworm of Taenia saginata or Taenia solium. Humans are the only definitive hosts for T.
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The cestodes tapeworms Taenia saginata beef tapeworm and T. Taenia solium eggs can also cause cysticercosis. Taeniasis is the infection of humans with the adult tapeworm of Taenia saginata or Taenia solium.
Humans are the only definitive hosts for T. Eggs or gravid proglottids are passed with feces ; the eggs can survive for days to months in the environment. Cattle T. A cysticercus can survive for several years in the animal. Humans become infected by ingesting raw or undercooked infected meat. In the human intestine, the cysticercus develops over 2 months into an adult tapeworm, which can survive for years.
The adult tapeworms attach to the small intestine by their scolex and reside in the small intestine. Length of adult worms is usually 5 m or less for T. The adults produce proglottids which mature, become gravid, detach from the tapeworm, and migrate to the anus or are passed in the stool approximately 6 per day.
The eggs contained in the gravid proglottids are released after the proglottids are passed with the feces. Contact Us. Skip directly to site content Skip directly to page options Skip directly to A-Z link. Parasites - Taeniasis. Section Navigation. Biology Minus Related Pages. Causal Agents: The cestodes tapeworms Taenia saginata beef tapeworm and T.
Life Cycle: Taeniasis is the infection of humans with the adult tapeworm of Taenia saginata or Taenia solium. Life cycle image and information courtesy of DPDx. To receive email updates about this page, enter your email address: Email Address. What's this? Immunocompromised Persons Pregnant Women Travelers. Links with this icon indicate that you are leaving the CDC website.
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Parasites - Taeniasis
NCBI Bookshelf. Ellen J. Lesh ; Mark F. Authors Ellen J.
Taenia Saginata (Beef Tapeworm) Infection
Infection with the beef tapeworm , Taenia saginata , may cause mild gastrointestinal upset or passage of a motile segment in the stool. It is treated with praziquantel. The larvae mature in about 2 months to adult worms that can live for several years; usually, only 1 or 2 adult worms are present. Adult T.