A Covid-19 particle is pictured in this image provided by the Centers for Disease Control and Prevention. Photo: CDC/TNS A Covid-19 particle is pictured in this image provided by the Centers for Disease Control and Prevention. Photo: CDC/TNS
A Covid-19 particle is pictured in this image provided by the Centers for Disease Control and Prevention. Photo: CDC/TNS

Explainer |
Why more contagious Covid-19 variants are emerging

  • Coronavirus mutations emerged as case numbers soared worldwide and as the virus responded to immunity that started to build up in the population
  • The best way to protect against current variants and prevent new ones is to reduce cases through ongoing control measures and vaccination

Topic |   Coronavirus pandemic
A Covid-19 particle is pictured in this image provided by the Centers for Disease Control and Prevention. Photo: CDC/TNS A Covid-19 particle is pictured in this image provided by the Centers for Disease Control and Prevention. Photo: CDC/TNS
A Covid-19 particle is pictured in this image provided by the Centers for Disease Control and Prevention. Photo: CDC/TNS
READ FULL ARTICLE