has stirred some controversy, with exporters of frozen food items questioning the science behind it and whether it amounts to an unfair trade barrier.
China has defended the practice as an additional measure to prevent the virus's spread. Through mask mandates, mass testing, lockdowns and case tracing, China has largely eliminated cases of local transmission, causing it to place extra attention on infection threats from outside the country.
China's National Health Administration on Wednesday reported five new cases, all imported, bringing China's total to 86,469, including 4,634 deaths.
Stopping the virus's spread is “like fighting a war," demanding fast, decisive action, CDC Chief Epidemiologist Wu Zunyou said. “Victory only comes after.