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Description:This 1967 image reveals the presence of numbers of pork tapeworm, Taenia solium cysticerci, which had contaminated this sample of porcine muscle tissue.
Pigs become infected by ingesting vegetation contaminated with T. solium eggs, or gravid tapeworm proglottids. In the animal's intestine, the oncospheres, i.e., embryos, hatch, invade the intestinal wall, and migrate to the striated muscles, where they develop into cysticerci (seen here). A cysticercus can survive for several years in the animal. Humans become infected by ingesting raw or undercooked infected meat.
High Resolution: Click here for hi-resolution image (7.17 MB)
Content Providers(s):CDC/ Dr. Green
Creation Date:1967
Photo Credit:
Links:CDC - Nat. Cntr. for Infectious Diseases (NCID); Div. of Parasitic Diseases (DPDx); Taeniasis
CDC Organization
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Copyright Restrictions:None - This image is in the public domain and thus free of any copyright restrictions. As a matter of courtesy we request that the content provider be credited and notified in any public or private usage of this image.