Medical staff members carry a patient into the Jinyintan hospital, where patients infected by a mysterious SARS-like virus are being treated, in Wuhan in China's central Hubei province on January 18, 2020. - The true scale of the outbreak of a mysterious SARS-like virus in China is likely far bigger than officially reported, scientists have warned, as countries ramp up measures to prevent the disease from spreading. (Photo by STR / AFP) / China OUT