Journal
VIRAL IMMUNOLOGY
Volume 22, Issue 6, Pages 445-449Publisher
MARY ANN LIEBERT INC
DOI: 10.1089/vim.2009.0055
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Funding
- NIH [AI-31055]
- Cancer Research Center at Albert Einstein College of Medicine [CA-13330]
- Einstein/MMC Center for AIDS Research [AI51519]
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Whether persistent human papillomavirus (HPV) IgG antibodies following natural infection are protective against subsequent infection is unknown. In a cohort of 508 college women followed for 3y, persistent seropositivity was defined as the presence of type-specific HPV virus-like particle (VLP) antibodies at >= 2 consecutive visits 1y apart. Protection from incident infection with any HPV was conferred by persistent antibodies to HPV16 (p = 0.02), HPV31 (p < 0.001), HPV33 (p = 0.03), HPV35 (p = 0.002), HPV52 (p = 0.007), HPV45 (p = 0.003), and HPV53 (p = 0.01). The risk of incident infection with species-specific HPV types was also decreased in women with persistent antibodies to any HPV type in that group, suggesting that exposure to HPV with persistent development of antibody response can be protective, and may explain the decreased efficacy of HPV vaccine in women with prior exposure.
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