Singapore, Jan. 24 -- All the rooms at Shangri-La's Rasa Sentosa Resort & Spa where Singapore's first confirmed case of the Wuhan virus and his travelling companions stayed in have been thoroughly cleaned and sealed off.

Four staff members who came into contact with the infected patient have also been told to stay at home since Wednesday, the hotel said last night.

Shangri-La Group's executive vice-president of operations in South-east Asia and Australasia Josef Dolp said that all four are currently well and have so far not displayed any symptoms of the virus.

"The rooms which the guests had stayed in were thoroughly disinfected and sanitised after the guests had checked out," he said.

"We will continue to remain vigilant and will a...