Topic: Contagious

Clinical support technician Douglas Condie extracts viruses from swab samples so that the genetic structure of a virus can be analysed and identified in the coronavirus testing laboratory at Glasgow Royal Infirmary, on February 19, 2020 in Glasgow, Scotland. (Jane Barlow - WPA Pool/Getty Images)

Omicron now most contagious virus ever

Matthew Rozsa, Nicole Karlis