Photo taken on Feb. 23, 2020 shows traditional Tibetan supplies for Tibetan New Year at a welfare institute of Lhasa, capital of southwest China`s Tibet Autonomous Region, Feb. 23, 2020. Welfare institutions in Tibet have prepared abundant supplies to welcome Tibetan New Year, which falls on Feb. 24 this year, without any gathering or celebration event due to the novel coronavirus outbreak. (Xinhua/Sun Fei)

A staff member fills in a disinfection record chart at a children welfare home of Lhasa, capital of southwest China`s Tibet Autonomous Region, Feb. 22, 2020. Welfare institutions in Tibet have prepared abundant supplies to welcome Tibetan New Year, which falls on Feb. 24 this year, without any gathering or celebration event due to the novel coronavirus outbreak. (Xinhua/Sun Fei)

A boy broadcasts the knowledge of the novel coronavirus prevention at a children welfare home of Lhasa, capital of southwest China`s Tibet Autonomous Region, Feb. 22, 2020. Welfare institutions in Tibet have prepared abundant supplies to welcome Tibetan New Year, which falls on Feb. 24 this year, without any gathering or celebration event due to the novel coronavirus outbreak. (Xinhua/Sun Fei)

A staff member cooks traditional Tibetan food for children at children welfare home of Lhasa, capital of southwest China`s Tibet Autonomous Region, Feb. 22, 2020. Welfare institutions in Tibet have prepared abundant supplies to welcome Tibetan New Year, which falls on Feb. 24 this year, without any gathering or celebration event due to the novel coronavirus outbreak. (Xinhua/Hou Jie)

Young men carry supplies for Tibetan New Year at a children welfare home of Lhasa, capital of southwest China`s Tibet Autonomous Region, Feb. 22, 2020. Welfare institutions in Tibet have prepared abundant supplies to welcome Tibetan New Year, which falls on Feb. 24 this year, without any gathering or celebration event due to the novel coronavirus outbreak. (Xinhua/Sun Fei)

A staff member checks children`s body temperatures at a children welfare home of Lhasa, capital of southwest China`s Tibet Autonomous Region, Feb. 22, 2020. Welfare institutions in Tibet have prepared abundant supplies to welcome Tibetan New Year, which falls on Feb. 24 this year, without any gathering or celebration event due to the novel coronavirus outbreak. (Xinhua/Sun Fei)

Children learn to cook traditional Tibetan food at children welfare home of Lhasa, capital of southwest China`s Tibet Autonomous Region, Feb. 22, 2020. Welfare institutions in Tibet have prepared abundant supplies to welcome Tibetan New Year, which falls on Feb. 24 this year, without any gathering or celebration event due to the novel coronavirus outbreak. (Xinhua/Sun Fei)

A staff member cooks Tibetan noodle for children at children welfare home of Lhasa, capital of southwest China`s Tibet Autonomous Region, Feb. 22, 2020. Welfare institutions in Tibet have prepared abundant supplies to welcome Tibetan New Year, which falls on Feb. 24 this year, without any gathering or celebration event due to the novel coronavirus outbreak. (Xinhua/Hou Jie)

A staff member disinfects the corridor of a welfare institute in Lhasa, capital of southwest China`s Tibet Autonomous Region, Feb. 23, 2020. Welfare institutions in Tibet have prepared abundant supplies to welcome Tibetan New Year, which falls on Feb. 24 this year, without any gathering or celebration event due to the novel coronavirus outbreak. (Xinhua/Sun Fei)