As the Nation Begins Virus Tracing, It Could Learn From This N.J. City

PATERSON, N.J. — The Uber driver had lost his sense of smell and taste but otherwise felt fine. He kept driving passengers in this small, industrial city until last week, when he took a test for Covid-19. By Friday, Jean Mugulusi of the Paterson Health Department was on the phone with him, breaking the news that he had tested positive and asking for a list of his recent passengers. He gave her eight phone numbers. “You came into contact with…