AdvertisementFact check: The theory that SARS-CoV-2 is becoming milderJanuary 14, 2022Michaeleen DouclefffacebookEmailThis colorized transmission electron micrograph image shows SARS-CoV-2, the coronavirus that causes the disease COVID-19. This specimen was isolated from a patient in the United States. Particles of the virus (yellow) are emerging from the surface of cells cultured in the lab (pink). (Science Source)