Firms in China have advised staff to work from home in an attempt to slow the spread of the deadly coronavirus.
Businesses are also offering workers longer holidays, as well as telling employees returning from the most affected areas to stay away from work.
It comes after the Chinese government extended the Lunar New Year holiday by three days to Sunday.
At least 80 people have now died in China from the disease, with almost 3,000 confirmed cases around the world.
Bytedance, which owns the video-sharing platform TikTok, and Chinese gaming giant Tencent have told staff to work from home.
Hotpot restaurant chain Haidilao has shut its branches across China until Friday.
On Sunday, the government of the city of Suzhou said businesses there would remain closed until at least 8 February.
Suzhou is a manufacturing hub in eastern China, home to a major pharmaceuticals and technology business park.