Vaccination

EXPLAINER: How do border policies affect US infection rates?

As the delta variant fuels an increase of COVID-19 cases in the U.S., some of President Joe Biden's critics blame the surge on his border policies, which allow some migrants to enter the country to apply for asylum.

Diseases, Conditions, Syndromes

China's Wuhan completes citywide COVID tests on 11 million residents

Authorities in the central Chinese city of Wuhan on Sunday said they had completed citywide testing of more than 11 million people for COVID-19 after a resurgence of cases more than a year after the coronavirus first emerged ...

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