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Sarah Littlefield, M.P.H.

Latest by Sarah Littlefield, M.P.H.

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News Analysis

HIV Prevention: A Changing Outlook

Introduction AIDS Vaccines

The Thai Trial: A Shot in the Arm Other Vaccines Why Has AIDS Vaccine Research Been so Challenging? What's Next?

PrEP

Can a Pill a Day Prevent HIV?

Microbicides

Hope in 2010 Rectal Microbicides

Conclusion ...