Month: September 2013

HPV vaccine wears off quickly in HIV-positive women

Women with HIV probably need a booster shot of HPV vaccine within 2 years to maintain efficacy, according to a Canadian study of quadrivalent HPV vaccine (Gardasil) in 136 HIV-positive women. Antibody response to the vaccine is strong enough at 2 years to protect about 90% of HIV-negative women against HPV [human papillomavirus]. “But in …

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