The delta variant that’s now the dominant strain of coronavirus in the U.S. appears to be as transmissible as chickenpox, according to an internal document from the Centers for Disease Control and Prevention.
The delta variant that’s now the dominant strain of coronavirus in the U.S. appears to be as transmissible as chickenpox, according to an internal document from the Centers for Disease Control and Prevention.
The "war has changed" against COVID-19 because of the highly contagious Delta variant, the U.S. Centers for Disease Control said,..