We may finally know why the delta variant of coronavirus is so infectious

Live Science | Jul 23, 2021 at 6:25 PM
  • People infected with the delta variant of the novel coronavirus may be carrying more than a thousand times more virus particles and may test positive two days earlier than those infected with the original SARS-CoV-2.
  • This variant is thought to be 60% more transmissible than the previous dominant strain, and twice as infectious as the original strain of SARS-CoV-2.
  • To understand more, a group of researchers in China studied how the delta variant spread from the first known local transmission identified on May 21.