‘Are you doing OK?’: On the ground with NYC contact tracers

Maryama Diaw, a contact tracer with New York City’s Health + Hospitals battling the coronavirus pandemic, works at her home before reaching out to potential patients Wednesday, Aug. 5, 2020, in New York. The city has hired more than 3,000 tracers and the city says it’s now meeting its goal of reaching about 90% of all newly diagnosed people and completing interviews with 75%. (AP Photo/John Minchillo)

NEW YORK — Joseph Ortiz headed for the home of a stranger who tested positive for COVID-19, unsure how his unexpected visit would go.