A tantalizing clue to why omicron is spreading so quickly – WBUR
A tantalizing clue to why omicron is spreading so quickly
A colorized scanning-electron-microscope image shows SARS-CoV-2 (the round blue objects) emerging from cells cultured in the lab. SARS-CoV-2 is the coronavirus that causes the disease COVID-19. (NIAID-RML/Science Source)