Why the Delta variant is spreading so much faster than other coronavirus strains
CNN
Worldwide, there is an alarming surge in coronavirus cases -- and health experts say a key factor in this latest wave is the highly contagious Delta variant.
The variant is spreading about 55% faster than the alpha strain that was first identified in the United Kingdom late last year, according to the World Health Organization (WHO) -- and that strain spreads about 50% faster than the version that first began infecting people in late 2019. "We should think about the Delta variant as the 2020 version of Covid-19 on steroids," Andy Slavitt, a former senior adviser to President Joe Biden's Covid Response Team, told CNN last week.More Related News