That's why Dr. Hannah Gay, an associate professor of pediatrics at the University of Mississippi Medical Center, administered the drugs within 30 hours after the baby was born.

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Having been born somewhat prematurely, the child was transferred to the University of Mississippi Medical Center, where the baby came under the experienced and skilled care of pediatrician Dr. Hannah Gay.

WHITEHOUSE: Prevention and Treatment of HIV Infection in Infants Born to Infected Mothers: Need for a Fresh Look | The White House

"Typically, when we do a test or medical study, we're taking a snapshot, " said Dr. Herman Taylor, principal investigator of the Jackson Heart Study at the University of Mississippi Medical Center and one of the scientists enlisted from outside Harvard.

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