Hepatitis B Topics HBV Prevention HBV Sexual Transmission
ICAAC 2012: Hepatitis B Vaccine Effective Long-term, but Some Lose Protection after 15 Years
- Details
- Category: HBV Vaccines
- Published on Tuesday, 11 September 2012 00:00
- Written by Liz Highleyman
Nearly all children who received 3 doses of the Engerix-B hepatitis B vaccine achieved protective immunity, but about 20% fell below the protective antibody threshold by year 15 and could benefit from a booster shot, Canadian researchers reported at the 52nd Interscience Conference on Antimicrobial Agents and Chemotherapy (ICAAC 2012) this week in San Francisco. 
Hepatitis B Rates Higher than Expected among Gay Men, Drug Users, Vaccinated Babies
- Details
- Category: HBV Vaccines
- Published on Tuesday, 04 September 2012 00:00
- Written by Liz Highleyman
An unexpectedly high proportion of gay/bisexual men and injection drug users develop chronic hepatitis B rather than clearing the infection, Amsterdam researchers reported in the September 2012 Journal of Hepatology. Other recent studies found that more than one-quarter of children born to mothers with hepatitis B showed evidence of "occult" HBV infection despite vaccination at birth, and that some individuals vaccinated as children may still show evidence of infection as adults.
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