BEIJING— China began locking down most of its largest city of Shanghai on Monday as part of its strict COVID-19 strategy, amid questions over the policy’s economic toll on the country.... Residents will be required to stay home and deliveries will be left at checkpoints to ensure there is no contact with the outside world.... Offices and all businesses not considered essential will be closed and public transportation suspended....

Shanghai, the nation's largest city, a driver working at one of its two main airports tested

LONDON( Reuters)-A mass rapid-testing scheme reduced COVID-19 cases in the English city of

and mass-producing several types of tests is necessary to ensure we find the best ones available

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China has not eliminated but largely curbed COVID-19 at home with quick lockdowns and mass testing

Xinhua said authorities had carried out almost 12 million tests so far, with 7.8 million samples

close Video Tucker: For millions of healthy people, coronavirus lockdowns are a life-changing

Fixing this deficiency, as well as creating antibody testing that can identify if someone has

Trump got tested the same night as the President was tested, out of an abundance of caution