Additional preexposure prophylaxis options now under development
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After a decade of controversy and halting progress, preexposure prophylaxis may finally be about to take its place in the vanguard of AIDS prevention.
In September, for the first time, the World Health Organization expanded the population recommended for this option, which involves taking daily doses of antiviral medication. If a person is exposed to HIV, the drugs should defeat the virus before it establishes a permanent foothold.