UK Covid variant now most common in US, says CDC chief – video

The B117 variant of coronavirus first detected in the UK is now the most dominant in the US, the director of the Centers for Disease Control and Prevention said on Wednesday.

During the White House coronavirus response team's briefing, Dr Rochelle Walensky warned the rising number of coronavirus cases in dozens of US states is probably attributable to the spread of variants

• US races to vaccinate as CDC chief says UK variant now dominant strain