CNBC reports that Dr. Tedros Adhanom Ghebreyesus, the World Health Organization's director general, is traveling to Beijing, China, to meet with government and health officials on the Wuhan coronavirus outbreak.

The WHO has so far declined to declare the dangerous respiratory disease a global health emergency, despite the spread of the infection from China to at least 10 other countries and the increasing death toll.

The mayor of Wuhan said on Sunday that there could be about 1,000 more confirmed cases of the virus in the city. About 5 million people left Wuhan before travel was restricted, and nine million people are currently living there.

The WHO said it needs more data before declaring the virus, which is spreading through human-to-human contact, a global health emergency.