The Latest: Britain eyes twice weekly virus tests for all The Associated Press FacebookTwitterEmail 9 1of9Small socially distanced groups gather in the sunshine on Primrose Hill overlooking the buildings of central London, Sunday April 4, 2021. (Kirsty O'Connor/PA via AP)Kirsty O'Connor/APShow MoreShow Less 2of9A health worker administers the COVISHIELD vaccine for COVID-19 at a residential area in Ahmedabad, India, Sunday, April 4, 2021.Ajit Solanki/APShow MoreShow Less 3of9 4of9People wearing face masks to help curb the spread of the coronavirus walk in Osaka, western Japan, Friday, April 2, 2021. Semi-emergency coronavirus measures began in Osaka and its neighboring prefecture in western Japan and another prefecture in the north Monday, April 5, 2021 as Japan tries to minimize the economic impact to specific areas where infections are rising back less than four months before the Tokyo Olympics. (Yosuke Mizuno/Kyodo News via AP)Yosuke Mizuno/APShow MoreShow Less