Travelers wearing face masks stand in line inside the departure hall at West Kowloon Station, operated by MTR Corp., in Hong Kong, China, on Thursday, Jan. 23, 2020.
Paul Yeung | Bloomberg | Getty Images
The total number of coronavirus cases in China rose to 634 Thursday as local authorities quarantined at least two major cities and canceled Lunar New Year’s events in Beijing, China state television reported.
The virus — which was first diagnosed less than a month ago — has already killed at least 17 people in China and infected roughly 650 people around the world, including firsts in Singapore and Saudi Arabia, according to multiple reports from international and local media. Medical…