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
Protein adulteration in China stating: "Based on information currently available, FDA and USDA believe the likelihood of illness after eating pork from swine fed the contaminated product would be very low." On 30 April 2007, the USDA and the FDA updated their 28 April food safety position to include poultry, reflecting contaminated feed being fed to chickens in Indiana. Risks to human health from this mode of entering the human food supply have been said to be low according to a number of FDA, CDC and university toxicologists, though it was acknowledged that how melamine had harmed cats and dogs "remains something of a