Coronavirus origins still a mystery 3 years into pandemic

FILE - This 2020 electron microscope image made available by the Centers for Disease Control and Prevention shows SARS-CoV-2 virus particles, which cause COVID-19. A crucial question has eluded governments and health agencies since the COVID-19 pandemic began: Did the virus originate in animals or leak from a Chinese lab? Now, the U.S. Department of Energy has assessed with “low confidence” that it began with a lab leak although others in the U.S. intelligence community disagree. (Hannah A. Bullock, Azaibi Tamin/CDC via AP, File)

WASHINGTON — A crucial question has eluded governments and health agencies around the world since the COVID-19 pandemic began: Did the virus originate in animals or leak from a Chinese lab?