China reported a rise in new coronavirus infections, mostly in travellers arriving from abroad, as doctors in the central city of Wuhan, where the virus initially emerged, warned its behaviour was still not well-understood, Reuters reports.

“We can’t say that there is no such potential risk,” said Wang Xinghuan, president of Wuhan’s Leishenshan hospital, its second built especially for virus patients.

China's National Health Commission said 46 new cases were reported, including 42 from abroad, up from 42 a day earlier.