New York gears up for contact tracing but experts warn of difficulties

New York faces enormous challenges in its attempts to implement one of the largest contact tracing schemes in the US, as the city prepares to reopen after nearly two months of coronavirus lockdown. The New York governor, Andrew Cuomo, has said the state is recruiting an “army of people to trace each person who tested positive” for an “unprecedented, nation-leading contact tracing programme”. The New York city mayor, Bill de Blasio, announced a…