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
Contaminated haemophilia blood products Contaminated haemophilia blood products Contaminated haemophilia blood products were a serious public health problem in the late 1970s up to 1985. These products caused large numbers of hemophiliacs to become infected with HIV and hepatitis C. The companies involved included Alpha Therapeutic Corporation, Institut Mérieux (which then became Rhone-Poulenc Rorer Inc., and is now part of Sanofi), Bayer Corporation and its Cutter Biological division, Baxter International and its Hyland Pharmaceutical division. Estimates range from 6,000 to 10,000 hemophiliacs in the United States becoming infected with HIV. Factor VIII is a protein that helps the clotting of blood, which hemophiliacs, due