The preliminary data suggests that many more New Yorkers may have been infected than was previously believed.Published April 23, 2020Updated May 4, 2020[This briefing has ended. For the latest updates
Non-peer reviewed study from Stanford found virus may be 50 to 85 times more common than official figures indicate
The tests, many made in China without F.D.A. approval, are often inaccurate. Some doctors are misusing them. The rollout is nowhere close to the demand.