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How a Blue Pill Is Stopping the Spread of HIV

  • Gilead’s Truvada is preventing HIV, driving cases to 1980s low
  • Daily PrEP pill reduces HIV risk from sex by more than 90%
Antviral drug Truvada.

Antviral drug Truvada.

Photographer: Justin Sullivan/Getty Images
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Kyle, a 29-year-old Sydneysider, never knew a time when HIV wasn’t a persistent and pernicious threat — until he began popping a pill to prevent it.

The blue, oval-shaped antiviral tablet, known as Truvada, that Kyle takes daily is the subject of a study in Australia’s New South Wales state that, in less than a year, has helped drive new cases of the AIDS-causing human immunodeficiency virus among gay and bisexual men to the lowest since 1985.