Green coronavirus under a microscope. Original image sourced from US Government department: Public Health Image Library… https://www.rawpixel.com/image/2282449/free-photo-image-virus-science-greenFree Image from public domain licenseGreen coronavirus under a microscope. Original image sourced from US Government department: Public Health Image Library… https://www.rawpixel.com/image/2282451/free-photo-image-immune-cell-parasite-green-backgroundFree Image from public domain licenseLiving organisms under a microscopic view. Original image sourced from US Government department: Public Health Image… https://www.rawpixel.com/image/2282440/free-photo-image-science-immune-cell-hela-cellsFree Image from public domain license