JOHANNESBURG, Oct. 24 -- South African AIDS researchers have begun warning hundreds of volunteers that a highly touted experimental vaccine they received in recent months might make them more, not less, likely to contract HIV in the midst of one of the world's most rampant epidemics. -
Warning Is Sent to AIDS Vaccine Volunteers
JOHANNESBURG, Oct. 24 -- South African AIDS researchers have begun warning hundreds of volunteers that a highly touted experimental vaccine they received in recent months might make them more, not less, likely to contract HIV in the midst of one of the world's most rampant epidemics.-
By Craig Timberg