Arrival of the Coronavirus Variant B117 (IMAGE) University of Texas at Austin Caption Analyzing data from 15 countries, researchers estimated the chance that travelers from the U.K. introduced the variant into 15 countries between Sept. 22 and Dec. 7, 2020. They found that the coronavirus variant B117 (501Y) had almost certainly arrived in all 15 countries by mid-November. In the U.S., the variant probably had arrived by mid-October. Credit University of Texas COVID-19 Modeling Consortium Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.