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Which of these hepatitis viruses can be prevented by vaccination?

  • A.Hepatitis C only
  • B.None of the hepatitis viruses
  • C.Hepatitis A and B
  • D.Hepatitis C and E

Answer: C

Correct answer: Hepatitis A and B

Effective vaccines exist for both, and a combined preparation is available. Vaccinating against B also protects against D. There is no vaccine for hepatitis C, whose variability has defeated the attempt so far, and the hepatitis E vaccine is licensed only in a few countries.

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