Novel Coronavirus SARS-CoV-2 Colorized scanning electron micrograph of a cell (teal) infected with a variant strain of SARS-CoV-2 virus particles (UK B.1.1.7; purple), isolated from a patient sample. Image captured at the NIAID Integrated Research Facility (IRF) in Fort Detrick, Maryland. Credit: NIAID https://www.flickr.com/photos/niaid/51376701008/