Robots that use cloud technology to help medical workers treat patients with the coronavirus are tested by a developer in a lab in Beijing this month. The smart devices are being used in hospitals in Beijing, Shanghai and Wuhan, Hubei province. JIANG WENJIE/FOR CHINA DAILY

A robot delivers medicine in Guangzhou, Guangdong province, in January. CHINA NEWS SERVICE

A smart device delivers goods in a hospital in Wuhan this month. CHINA DAILY