Researchers testing a promising new HIV prevention pill report early success, but caution that more studies are needed. The pill, which acts to block infection, lowered (but did not completely eliminate) the incidence of HIV transmission among test subjects as compared to a placebo group. More case studies are being planned around the world.
This is an obvious step forward, although the fact that the pill does not appear to block 100% of infections is still of concern. Nevertheless, anything that stops infections is a good thing, even while we strive to create a vaccine with 100% efficacy.
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