CDC now calls coronavirus Delta variant a ‘variant of concern’.

CDC now calls coronavirus Delta variant a ‘variant of concern’ – CNN

Guidance: SARS-CoV-2 Variant Classifications and Definitions – Centers for Disease Control and Prevention

Commentary on Twitter

BREAKING—CDC now officially declares #DeltaVariant a “variant of concern”—because much more transmissible (50% faster than #B117, 2x than original strain), more severe (2.5x hospitalization risk than B117, 4x original) & 1 dose vaccine evasive.? #COVID19https://t.co/jZCgfzFLla pic.twitter.com/SszvXuysze

— Eric Feigl-Ding (@DrEricDing) June 15, 2021