Laboratory technicians test a blood sample for HIV infection at the Reproductive Health and HIV Institute (RHI) in Johannesburg, Thursday, Nov. 26 2020. The successful trials of a new injectable drug that needs to be taken every eight weeks to prevent HIV infection is being lauded on World AIDS Day as a turning point for the fight against a global health threat that's been eclipsed by the coronavirus pandemic. (AP Photo/Denis Farrell)
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