In this Sunday, April 12, 2020, photo, workers are seen at a production line for masks at the Wuhan Zonsen Medical Products Co. Ltd. in Wuhan in central China's Hubei province. China won't restrict exports of medical goods needed to fight the coronavirus pandemic, a government spokesman said Thursday, April 16, 2020, amid global tension over scarce masks and ventilators. (AP Photo/Ng Han Guan)