In order to prevent the spread of the pneumonia epidemic of the new coronavirus infection, the authorities decided to implement the control measures for wearing masks in public places in Guangdong Province from the announcement on January 26, 2020. The termination date will be announced separately. (粤防疫指办通〔2020〕1号)

Remind you: Wear a mask when taking metro, bus, tram, waterbus (ferry), taxi, highway bus and other public transportation, and entering shopping malls, shops, bookstores, museums, hotels, restaurants, cafes, waiting rooms in hospital, airport, port (pier), and other crowded public places.

お体の具合が悪い時に、タイムリーに正規的な病院で受診し、14日間以内行った場所を誠実に医者に話してください。質問がある場合、広州衛生ホットライン12320までお問い合わせください。

As of 2020年01月27日 20:25, public transportation services in Guangzhou are generally available.The authorities says on January 27th, Guangdong will not implement measures to restrict people and vehicles from entering and leaving the city.
地下鉄バス路面電車水上バス
Waterbus Line S2, S5a, S13a and all Ruyue routes are suspended. Other waterbus lines are available.