Studies Show AIDS Drugs Can Prevent HIV Infection

New York Times: Two Studies Show Pills Can Prevent H.I.V. Infection, by Donald G. McNeil, Jr.:

Two new studies released on Wednesday add to the growing body of evidence that taking a daily pill containing one or two AIDS drugs can keep an uninfected person from catching the fatal human immunodeficiency virus.

The studies were the first to show protection in heterosexuals; the only earlier one with similarly encouraging results involved gay men. . . .