Los Angeles becomes the first county in the United States to reach one million cases of COVID-19, as the region confirms the first case of the COVID variant in the United Kingdom
CDC says the highly transmissible COVID-19 variant found in the UK could be dominant in the US in March
CDC says the highly transmissible COVID-19 variant found in the UK could be dominant in the US in March
Vaccines may not work with the South African variant of the coronavirus: British scientists – world news