In Germany, auto supplier Webasto, which has 11 sites in China, including in Wuhan, the capital of Hubei, has halted all corporate travel to and from China following the virus and the infection of an employee.
Japan's Honda Motor Co Ltd said it recommended employees avoid travel to China, while Nissan Motor Co said it plans to evacuate its Japanese staff and their families in Wuhan via a government-chartered flight.
As companies reassessed the risk of travel to China, some airlines said demand for flights was falling and they were adjusting schedules.
South Korean budget carrier Air Seoul said it will halt all flights to China, while Taiwan's China Airlines announced a further rescheduling of its flights to China from Friday to Feb. 10, cancelling five flights and rearranging the schedules of others.