Eucestoda the "broad tapeworm" or "fish tapeworm") and related species. Humans become infected by eating raw, undercooked, or marinated fish acting as a second intermediate or paratenic host harboring metacestodes or plerocercoid larvae. Clinical symptoms are due to the large size of the tapeworm, which often reaches a length exceeding 15 m. The most common symptom is pernicious anemia, caused by the absorption of vitamin B12 by the worm. Other symptoms include various intestinal issues, slight leukocytosis, and eosinophilia. This condition is caused by the plerocercoid larvae of the tapeworm "Spirometra". Humans become infected by drinking contaminated water, eating raw or
Bovine spongiform encephalopathy abilities, and ultimately death. The British Government enquiry took the view the cause was not scrapie, as had originally been postulated, but was some event in the 1970s that was not possible to identify. Spread to humans is believed to result in variant Creutzfeldt–Jakob disease (vCJD). The agent can be transmitted to humans by eating food contaminated with it. The highest risk to humans is believed to be from eating food contaminated with the brain, spinal cord, or digestive tract though any tissue may be involved.<ref name="FDA/CFSAN"> </ref> The pathogenesis of BSE is not well understood or documented like other