Introduce harm-reduction and HIV programmes – especially for heroin users – before it's too late.
Traditional and Western healers team up to treat patients with HIV and tuberculosis because many people consult more than one health system.
Psychiatrists have since turned to antidepressants, mood stabilisers and antipsychotics that aren’t curative.
In the first of a two-part series, a band of doctors set out to reclaim LSD and ecstasy for mental health treatments.
Crime stats released in 2015 reported a drop in rape cases, but experts say this is because fewer people are bothering to report rapes to the police.