Fortunately, with the spread of the new coronavirus accelerating, Chinese authorities responded not only treating the patients and isolating new cases as identified, tracing the contact, but also extended travel restrictions to 48 million people in hardest-hit Hubei province, banned inter-province buses to Beijing and canceled tour group travel abroad [25, 26]. However it is not completely under control, people with symptoms of pneumonia reported travel history to Wuhan have been identified at international airports over the past week.