Citizens are seen at a fish market in Hong Kong, south China, March 9, 2020. (Xinhua/Lo Ping Fai)

By the end of Wednesday, 129 confirmed cases including three deaths had been reported in the Hong Kong Special Administrative Region (SAR).

A man participates in a gateball game at a park in Hong Kong, south China, March 9, 2020. (Xinhua/Lo Ping Fai)

Citizens take a walk by the sea in Hung Hom of Hong Kong, south China, March 11, 2020. (Xinhua/Wang Shen)

A teacher gives an online course to students at the Hon Wah College in Hong Kong, south China, March 11, 2020. (Xinhua/Lui Siu Wai)

A citizen takes exercises in Hung Hom of Hong Kong, south China, March 11, 2020. (Xinhua/Wang Shen)

A staff conducts disinfection at a community in Hung Hom of Hong Kong, south China, March 11, 2020. (Xinhua/Wang Shen)

Citizens buy fish at a fish market in Hong Kong, south China, March 9, 2020. (Xinhua/Lo Ping Fai)

Citizens take a ferry in Hong Kong, south China, Feb. 12, 2020. (Xinhua/Wang Shen)

Photo taken with a mobile phone on March 10, 2020 shows the sterilization products on promotion in Hong Kong, south China. (Xinhua/Wang Shen)

A man receives temperature check before entering a building in Hong Kong, south China, Feb. 20, 2020. (Xinhua/Li Gang)

Photo taken on March 11, 2020 shows a restaurant in Hung Hom of Hong Kong, south China. (Xinhua/Wang Shen)

Passengers are seen at the Hong Kong International Airport in Hong Kong, south China, March 10, 2020. (Xinhua/Lui Siu Wai)

Many airplanes are seen at the Hong Kong International Airport, due to the cancellations of flights amid the COVID-19 outbreak, in Hong Kong, south China, March 10, 2020. (Xinhua/Lui Siu Wai)

Photo taken on March 3, 2020 shows the closded Jumbo Floating Restaurant amid the COVID-19 outbreak in Hong Kong, south China. (Xinhua/Li Gang)

People wearing masks cross a street in Hong Kong, south China, Feb. 28, 2020. (Xinhua/Wang Shen)