Philadelphia will begin reporting people with HIV by name, rather than using a coded system - despite concerns about confidentiality.
The change takes effect October 1. One critic calls it "a bad idea whose time has come."
The state already uses a name-based system. It gave the city a one-year waiver when activists and Mayor John Street argued for a coded system. They said it would protect privacy, prevent discrimination and encourage HIV testing.
But the system proved expensive and incomplete, with doctors and hospitals often failing to include data necessary to encode the information sent to the state Health Department.