Aerial photo taken on Jan. 31, 2020 shows buildings illuminated with slogans to cheer the city on in Wuhan, central China's Hubei Province. (Photos: Xinhua)

Photo taken on Jan. 31, 2020 shows buildings illuminated with slogans to cheer the city on in Wuhan, central China's Hubei Province.

Photo taken on Jan. 31, 2020 shows buildings illuminated with slogans to cheer the city on in Wuhan, central China's Hubei Province.

Aerial photo taken on Jan. 31, 2020 shows buildings illuminated with slogans to cheer the city on in Wuhan, central China's Hubei Province.

Aerial photo taken on Jan. 31, 2020 shows buildings illuminated with slogans reading "Come on, Wuhan" to cheer the city up in Wuhan, central China's Hubei Province.