The original content of Democracy Now! Headlines appears under the Creative Commons BY-NC-ND 3.0 License (United States). For more, including their other shows and media, visit www.democracynow.org. April 24, 2020 Researchers Estimate 28,000 Were Infected with Coronavirus in U.S. Cities by March 1 ------------------------------------------------------------------------------------ Researchers at Northeastern University say the novel coronavirus spread undetected in major cities, including Boston, Chicago, New York, San Francisco and Seattle, in early February - far earlier than previously known. The researchers estimate 28,000 people in U.S. cities were infected by March 1, when there were just 23 confirmed cases of the disease. .