hepatitis vaccines

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Identified hepatitis viruses include hepatitis A; B; non-A non-B, now called hepatitis C; D, also called delta hepatitis virus; E; F; and G. Hepatitis A and E are transmitted by the fecal-oral route, the others by blood or body fluids. Because of molecular (immunological) differences, vaccines must be prepared individually to protect against each variety. Vaccines are now available against hepatitis A, B, and D (hepatitis B vaccine is partially protective against this). No vaccines were available for protection against other varieties of hepatitis as of 2005. See http://www.cdc.gov/idu/hepatitis/vaccines.pdf for further details.

Subjects: Public Health and Epidemiology.

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