New York state’s efforts to contain the novel coronavirus and reopen the economy rely heavily on contact tracers. Gov. Andrew Cuomo said late last month that the state would need “an army” of people to find anyone who was close to a patient with a confirmed case of the novel coronavirus. In Monroe County, more than 600 people have signed up to volunteer as contact tracers, said the man leading their training, public health department emergency preparedness specialist Aaron Cignarale.