A more contagious variant of the coronavirus may alter the course of the pandemic in the United States, researchers said.A more contagious variant of the coronavirus may alter the course of the pandemic in the United States, researchers said.Coronavirus (2019-nCoV), Disease Rates, Shutdowns (Institutional), Vaccination and Immunization, Nursing Homes, Colorado, United States, Great Britain, your-feed-science, CaliforniaRead More