A volunteer operates a remote controlled disinfection robot to disinfect a residental area amid the coronavirus outbreak in Wuhan in China's central Hubei province on March 16.   Wuhan, the Chinese city at ground zero of the coronavirus pandemic, will need to see 14 consecutive days of no new cases before travel restrictions can be lifted, a top Chinese health expert told state media on Tuesday. Speaking to the state-run China Daily newspaper, Li Lanjuan, a member of the Chinese A