Medical research

Cocaine vaccine gets a boost with molecular imaging

Addicts unable to kick a cocaine habit could one day be vaccinated against cocaine and see proof with a molecular imaging technique that shows how the vaccine prompts antibodies to whisk away the drug before it can reach ...

Addiction

Crack cocaine wreaks havoc in Rio shantytown

Firecrackers and sporadic gunfire greeted the police-escorted social workers as they drove into northern Rio's Jacarezinho shantytown, home to a large population of crack cocaine addicts.

Addiction

Forced treatment for crack addicts in Sao Paulo

About 50 Brazilian health officials and law enforcement agents are rounding up crack addicts in the city of Sao Paulo and forcibly putting them in treatment if deemed necessary.