Mexican researchers patent heroin vaccine

MEXICO CITY (Reuters) - While Mexico grapples with relentless drug-related violence, a group of Mexican scientists is working on a vaccine that could reduce addiction to one of the world's most notorious narcotics: heroin.

Source: http://feeds.reuters.com/~r/reuters/healthNews/~3/ms2LqahIXwI/us-mexico-heroin-idUSTRE81N01I20120224

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