MRC-University of Glasgow Centre for Virus Research

An image created with a confocal microscope shows cell nuclei (blue) being infected by SARS-CoV-2 (red areas), the virus which causes COVID-19, in the Richard Elliott Biosafety Laboratories (REBL), Containment Level 3 Facilities, at the MRC-University of Glasgow Centre for Virus Research. Picture date: Tuesday March 16, 2021. (Photo by Jane Barlow/PA Images via Getty Images)