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Saw-scaled vipers may be small, but they pack a nasty venomous punch. This one, Echis carinatus sochureki, was used in a study on snake venom.
Courtesy of Wolfgang Wüster
June 10, 2014 The search for a universal treatment for snakebites is complicated by the fact that each species has a very different cocktail of toxins. Even knowing a snake's DNA might not help much.
Daily medications for young children with HIV include both tablets and liquid drugs in syringes.
Andrew Aitchison/In Pictures/Corbis
March 3, 2013 Scientists say a Mississippi child has been cured of HIV. The research findings, released Sunday, could help cure other HIV-infected newborns.
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