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Efficacy of hepatitis B vaccine in chimpanzees given transfusions of highly infective blood.

Abstract
The protective efficacy of a hepatitis B vaccine against infections from transfusions of large volumes of highly infective blood in five immunized chimpanzees was assessed. Hepatitis B surface antigen (HBsAg) became positive and antibody to HBsAg (anti-HBs) disappeared soon after transfusion in the five chimpanzees. Two chimpanzees that had HBsAg only on the day of transfusion did not develop infection. However, the remaining three chimpanzees with persistent HBsAg antigenemia for three to four days developed serologic evidence of infection. Two chimpanzees did not have hepatitis and the third had a mild, transient case of acute hepatitis. The hepatitis B vaccine prevented the four immunized chimpanzees from developing illness. The remaining chimpanzee developed hepatitis, but a rapid booster response of anti-HBs owing to the previous vaccination appeared to lighten the severity of the disease and prevent chronicity.
AuthorsT Karasawa, T Shikata, K Abe, R Horiuchi, T Takahashi, N Yoshihara, M Mayumi, H Suzuki, T Oda
JournalThe Journal of infectious diseases (J Infect Dis) Vol. 147 Issue 2 Pg. 327-35 (Feb 1983) ISSN: 0022-1899 [Print] United States
PMID6827148 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
Chemical References
  • Hepatitis B Antibodies
  • Hepatitis B Surface Antigens
  • Viral Vaccines
Topics
  • Animals
  • Hepatitis B (diagnosis, etiology, prevention & control)
  • Hepatitis B Antibodies (analysis)
  • Hepatitis B Surface Antigens (analysis, immunology)
  • Hepatitis B virus (immunology)
  • Immunity
  • Immunization
  • Pan troglodytes
  • Transfusion Reaction
  • Viral Vaccines (immunology)

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