Bangladesh, Feb. 16 -- Real estate agent Du Xuekun's sales usually jump after the Lunar New Year holiday. But this year, Du has been at home for a month with no income after vast swathes of China's economy were shut down in a sweeping effort to contain a virus outbreak.

Du, who lives in Jiaozhuo, near the central city of Zhengzhou, is one of millions of people who are bearing the soaring cost of the most extreme anti-disease measures ever imposed. Some businesses are reopening, but Beijing has told the public to stay home if possible.

"People will buy food and clothes online but for sure won't buy an apartment without seeing it," said Du.

Industries from auto sales to travel to retailing effectively shut down after curbs were imposed s...