Tim LaneTim Lane RelatedCare & Services Outside the U.S.A Long Road Ahead to Reduce HIV Among South Africa's Sex WorkersTim Lane; The Conversation4 Min ReadMore than half the female sex workers in South Africa's three largest cities are HIV positive -- but less than one-third are on antiretroviral treatment, according to a newly released study. Care & Services Outside the U.S.A Long Road Ahead to Reduce HIV Among South Africa's Sex WorkersTim Lane; The Conversation4 Min ReadMore than half the female sex workers in South Africa's three largest cities are HIV positive -- but less than one-third are on antiretroviral treatment, according to a newly released study.