Barely a week after no longer requiring residents to show a negative COVID-19 test to use mass transit, authorities in the northern Chinese city of Shijiazhuang have locked down much of the city for five days as infections surge.
In Shanghai, many neighborhoods have begun requiring frequent COVID-19 tests again only days after telling residents that the tests were seldom needed.
And across much of Beijing, officials have ordered schools and many businesses to close as daily cases rose over the past week to more than 1,400 and the country acknowledged its first coronavirus-related deaths in months.