Epidemic prevention staff members prepare for disinfection at a railway station in Wuhan, central China's Hubei Province, Jan. 16, 2022. The number of railway passenger trips during China's upcoming Spring Festival travel rush is expected to jump 28.5 percent from the holiday season last year, industry data shows. During the 40-day travel season, also known as chunyun, many Chinese people will travel to meet their families for the Chinese Lunar New Year, or Spring Festival, which will fall on Feb. 1, 2022. (Xinhua/Cheng Min)

Aerial photo taken on Jan. 16, 2022 shows bullet trains at a train depot in Guiyang, southwest China's Guizhou Province. The number of railway passenger trips during China's upcoming Spring Festival travel rush is expected to jump 28.5 percent from the holiday season last year, industry data shows. During the 40-day travel season, also known as chunyun, many Chinese people will travel to meet their families for the Chinese Lunar New Year, or Spring Festival, which will fall on Feb. 1, 2022. (Xinhua/Ou Dongqu)

Aerial photo taken on Jan. 16, 2022 shows bullet trains at a train depot in Guiyang, southwest China's Guizhou Province. The number of railway passenger trips during China's upcoming Spring Festival travel rush is expected to jump 28.5 percent from the holiday season last year, industry data shows. During the 40-day travel season, also known as chunyun, many Chinese people will travel to meet their families for the Chinese Lunar New Year, or Spring Festival, which will fall on Feb. 1, 2022. (Xinhua/Ou Dongqu)

A staff member carries out a hygienic check on a train in Wuhan, central China's Hubei Province, Jan. 16, 2022. The number of railway passenger trips during China's upcoming Spring Festival travel rush is expected to jump 28.5 percent from the holiday season last year, industry data shows. During the 40-day travel season, also known as chunyun, many Chinese people will travel to meet their families for the Chinese Lunar New Year, or Spring Festival, which will fall on Feb. 1, 2022. (Xinhua/Cheng Min)

Passengers wait to board trains at Shenzhen North Railway Station in Shenzhen, south China's Guangdong Province, Jan. 17, 2022. The number of railway passenger trips during China's upcoming Spring Festival travel rush is expected to jump 28.5 percent from the holiday season last year, industry data shows. The 2022 Spring Festival travel rush will last from Jan. 17 to Feb. 25. During the 40-day travel season, also known as chunyun, many Chinese people will travel to meet their families for the Chinese Lunar New Year, or Spring Festival, which will fall on Feb. 1, 2022. (Xinhua/Liang Xu)

A bullet train passes by the Yongdingmen (Gate of Perpetual Peace) in Beijing, capital of China, Jan. 17, 2022. The number of railway passenger trips during China's upcoming Spring Festival travel rush is expected to jump 28.5 percent from the holiday season last year, industry data shows. The 2022 Spring Festival travel rush will last from Jan. 17 to Feb. 25. During the 40-day travel season, also known as chunyun, many Chinese people will travel to meet their families for the Chinese Lunar New Year, or Spring Festival, which will fall on Feb. 1, 2022. (Xinhua/Xing Guangli)

A raillway locomotive passes by the Yongdingmen (Gate of Perpetual Peace) in Beijing, capital of China, Jan. 17, 2022. The number of railway passenger trips during China's upcoming Spring Festival travel rush is expected to jump 28.5 percent from the holiday season last year, industry data shows. The 2022 Spring Festival travel rush will last from Jan. 17 to Feb. 25. During the 40-day travel season, also known as chunyun, many Chinese people will travel to meet their families for the Chinese Lunar New Year, or Spring Festival, which will fall on Feb. 1, 2022. (Xinhua/Xing Guangli)

Aerial photo taken on Jan. 16, 2022 shows bullet trains at a train depot in Lanzhou, northwest China's Gansu Province. The number of railway passenger trips during China's upcoming Spring Festival travel rush is expected to jump 28.5 percent from the holiday season last year, industry data shows. The 2022 Spring Festival travel rush will last from Jan. 17 to Feb. 25. During the 40-day travel season, also known as chunyun, many Chinese people will travel to meet their families for the Chinese Lunar New Year, or Spring Festival, which will fall on Feb. 1, 2022. (Xinhua/Du Zheyu)