Study concept and design: Gardella, Wald.
Acquisition, analysis, or interpretation of data: All authors.
Drafting of the manuscript: Delaney, Magaret.
Critical revision of the manuscript for important intellectual content: Gardella, Saracino, Magaret, Wald.
Statistical analysis: Saracino, Magaret.
Obtained funding: Wald.
Administrative, technical, or material support: Wald.
Study supervision: Delaney, Gardella, Magaret, Wald.
Conflict of Interest Disclosures: The authors have completed and submitted the ICMJE Form for Disclosure of Potential Conflicts of Interest. Dr Wald reported receiving grant support from Genocea, Agenus, Gilead, Genentech, and Vical; and consulting fees from AiCuris, Amgen, and Eisai. No other disclosures were reported.
Funding/Support: This study was supported by grants AI-030731 and K24 AI 071113 from the National Institute of Allergy and Infectious Diseases.
Role of the Sponsor: The National Institute of Allergy and Infectious Diseases had no role in the design and conduct of the study; collection, management, analysis, and interpretation of the data; preparation, review, or approval of the manuscript; and decision to submit the manuscript for publication.
Previous Presentation: Presented in part at the Annual Meeting of the Infectious Disease Society for Obstetrics and Gynecology; August 11-13, 2011; Chicago, Illinois.