Workers produce protective face masks at a factory in Qingdao in China's eastern Shandong province, on February 6, 2020, to support the supply of medical materials during a virus outbreak that originated from Hubei's provincial capital city of Wuhan. - The number of confirmed infections in China's coronavirus outbreak has reached 28,018 nationwide with 3,694 new cases reported, the National Health Commission said on February 6. (Photo by STR / AFP) / China OUT (Photo by STR/AFP via Getty Images)