Anti-retroviral treatments (ARVs) and universal testing could stop the spread of AIDS in South Africa within five years, a top scientist says.
Dr Brian Williams says the cost of giving the drugs to almost six million HIV-positive patients in the country would be $2-3bn per year.
Only about 30% get the life-saving drugs, he said, but early detection and treatment would prevent transmission.
This, he said, should be complementary to the search for an AIDS vaccine.
An effective vaccine, he said, was still a long way away.
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Article courtesy bbc.co.uk