AdvertisementDiscreetly Tracking Down Sex Partners To Stop A Surge In STDsSeptember 08, 2018Kristian Foden-VencilfacebookEmailMary Horman (left), a registered nurse for Clackamas County, and Liz Baca, a disease intervention specialist for the county, search for the right address in an Oregon neighborhood. Part of their job is to get information to people who may have a serious, treatable infection, yet not realize it. (Kristian Foden-Vencil/OPB)