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CONTROL6 - GENERAL CONCEPTS • Type A hepatitis virus(HAV...

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CONTROL: Sanitary: Avoidance of contacts is the best means for preventing disease. Immunological: Vaccines for Polio have been available for more than 40 years. The Salk vaccine is a trivalent (types 1, 2 and 3), formalin inactivated suspension that is given by injection (parenteral). The Sabin vaccine is an attenuated, live, trivalent, oral suspension that produces intestinal IgA but has rare vaccine-associated paralysis. Vaccines against the other picornaviruses are not practical (too many serotypes). Chemotherapeutic: Supportive care is best. Hepatitis Viruses VIRUS: Hepatitis A, B, C
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Unformatted text preview: GENERAL CONCEPTS: • Type A hepatitis virus (HAV) is a member of the enterovirus group of Picornaviruses; Hepatitis B virus (HBV) is distinctly different and contains a DNA genome; Hepatitis C virus (HCV, also referred to as non-A, non-B or NANBH) is not well characterized but appears to contain an RNA genome and may belong in the Flavivirus group. • The disease caused by these agents is he • patitis, a generalized infection with inflammation and necrosis of the liver. The course of hepatitis may range from inapparent disease to chronic liver disease ....
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