Contagious and concerning: What we know about COVID-19 variants
France steps up travel controls as virus cases soar
26 March 2021Study shows face masks strongly associated with reducing healthcare workers’ risk of acquiring COVID-19
26 March 2021Contagious and concerning: What we know about COVID-19 variants
Several coronavirus variants with the potential to be more transmissible have caused global concern over whether existing vaccines will still protect the world from a virus that is constantly mutating.
