Taenia saginata: Difference between revisions
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==Background== | ==Background== | ||
* also known as the beef tapeworm | *also known as the beef tapeworm | ||
* humans are the only known definitive host, cattle are intermediate hosts | *humans are the only known definitive host, cattle are intermediate hosts | ||
===Transmission=== | ===Transmission=== | ||
* transmitted by ingesting undercooked beef containing the tapeworm larvae | *transmitted by ingesting undercooked beef containing the tapeworm larvae | ||
* larvae mature in the human intestines and the mature tapeworm attaches to the intestinal walls to ingest nutrients from the host | *larvae mature in the human intestines and the mature tapeworm attaches to the intestinal walls to ingest nutrients from the host | ||
* mature tapeworms release gravid proglottids in the stool which release eggs into the stool, which can remain active in sewage for several weeks | *mature tapeworms release gravid proglottids in the stool which release eggs into the stool, which can remain active in sewage for several weeks | ||
==Clinical Features== | ==Clinical Features== | ||
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==Treatment== | ==Treatment== | ||
* praziquantel, single dose of 5-10 mg/kg (2) | *praziquantel, single dose of 5-10 mg/kg (2) | ||
* niclosamide outside the U.S. (single dose of 2 gm or 50 mg/kg for pediatrics) (2) | *niclosamide outside the U.S. (single dose of 2 gm or 50 mg/kg for pediatrics) (2) | ||
==Disposition== | ==Disposition== | ||
Revision as of 18:11, 4 July 2016
Background
- also known as the beef tapeworm
- humans are the only known definitive host, cattle are intermediate hosts
Transmission
- transmitted by ingesting undercooked beef containing the tapeworm larvae
- larvae mature in the human intestines and the mature tapeworm attaches to the intestinal walls to ingest nutrients from the host
- mature tapeworms release gravid proglottids in the stool which release eggs into the stool, which can remain active in sewage for several weeks
Clinical Features
- Diarrhea
- Constipation
- Flatulence
- Hunger pain
- Weight loss
- Anal discomfort
Symptoms are more severe in those with immature or compromised immune systems
Differential Diagnosis
Helminth infections
Cestodes (Tapeworms)
- Taenia saginata
- Taenia solium (Cysticercosis)
- Diphyllobothrium latum
- Hymenolepis nana
- Echinococcus granulosus
Trematodes (Flukes)
- Fasciola hepatica
- Fasciolopsis buski
- Opistorchis viverrini
- Schistosoma spp
- Chlonorchis sinensis
- Paragonimus spp.
Nematodes (Roundworms)
- Ascaris lumbricoides
- Enterobius vermicularis (Pinworm)
- Filarial worms
- Hookworm
- Necator americanus
- Ancylostoma duodenale
- Cutaneous larva migrans (Ancylostoma braziliense)
- Dracunculiasis
- Strongyloides stercoralis
- Trichuris trichiura (Whipworm)
- Anisakis
- Toxocara spp.
- Trichinosis
Diagnosis
Treatment
- praziquantel, single dose of 5-10 mg/kg (2)
- niclosamide outside the U.S. (single dose of 2 gm or 50 mg/kg for pediatrics) (2)
Disposition
See Also
References
- Stanford University (n.d.). Taenia saginata. Retrieved from http://web.stanford.edu/group/parasites/ParaSites2001/taeniasis/saginata3.html
- Pearson RD. Merck Manual. Taenia Saginata infection Retrieved from http://www.merckmanuals.com/professional/infectious-diseases/cestodes-(tapeworms)/taenia-saginata-(beef-tapeworm)-infection