The highly contagious and potentially more harmful Delta variant of the coronavirus is “likely” to become the dominant strain in the US in the coming months, Rochelle Walensky, director of the Centers for Disease Control and Prevention, told Good Morning America on Friday. “
“It’s more transferable than the Alpha variant or the British variant that we have here. We saw this quickly become the dominant strain within a month or two, ”Walensky said. “I expect that will happen to the Delta strain here.”
Vaccines were effective against the variant, which first appeared in India, but Walensky expressed concerns that the virus could mutate and make vaccines less effective.