Joseph Ortiz headed for the home of a stranger who tested positive for COVID-19, unsure how his unexpected visit would go. The person hadn’t answered phone calls from New York City’s contact tracing program, a massive effort to keep the coronavirus from spreading by getting newly diagnosed people to identify others they might have infected before those people spread it further. Ortiz was out to try to bring the person into the fold. “It’s a mixed bag. You never know what you’re going to get,” Ortiz, 30, said as he approached the person’s Queens apartment building this month. “Sometimes you have people who are really appreciative….They like that we’re out here trying to end the pandemic so everyone can get back to normal.” “But other times, you might have a client who slams the door.” Such is the on-the-ground work of what appears to be the biggest contact tracing effort in any U.S. city, with over 3,000 people making calls, knocking on doors and checking in on people’s health and sequestration. Mayor Bill de Blasio, a Democrat, has credited the effort with “so far, amazing success.” After a knotty June start, the city says it’s now meeting its goal of reaching about 90% of all newly diagnosed people and completing interviews with 75%. But in the program’s first two months, more than 11,000 infected people — over half of all new cases — didn’t provide any names of others they might have exposed. When people have identified contacts, tracers have finished interviews with 6 in 10 of them, short of the city’s goal. The city has yet to say how quickly it’s connecting with people or what it’s gleaning about potential sources of exposure. Comparing U.S. state and city contact tracing programs is difficult because they vary widely in what they release, but some public health scholars say the numbers that New York reports are promising. Still, some outside experts suggest New York should get more from the initiative. “The way you hear the metrics and the progress described, it’s like their job is done after making these contacts. But it’s not mission accomplished, at all,” says Dr. Denis Nash, a City University of New York epidemiology professor. He feels the city is missing opportunities to assess people’s success at isolating themselves and scout exposure patterns to learn “where the holes in the safety net are and assess how big they are.” Program director Dr. Ted Long acknowledges there’s more work to do. But Long, a physician and executive with city-run hospital system Health + Hospitals, estimates the tracers’ efforts have prevented thousands of coronavirus cases and helped keep new infections, hospitalizations and deaths at relatively low levels. New confirmed cases topped 6,000 on some days in April; they now average about 200 a day amid far more testing. “That’s what tells me that what we are doing is working,” Long said. Contact tracing is a time-honored public health technique, but the pandemic is putting it to a grueling new test around the world. The stakes are particularly clear to the U.S. city that has suffered more COVID-19 deaths than any other but wrestled its outbreak into relative control late this spring. Making calls from her East Harlem apartment, tracer Maryama Diaw says she strives to “be sensitive and compassionate […]
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