Data from Guangzhou-based online pharmacy 111 Inc showed that from early November, the Nasdaq-listed company's B2B online platform had witnessed a spurt in sales of anti-infective, cough and phlegm relief, antipyretics and analgesics, as well as cold medicines.

In November, sales of its anti-infection drugs increased by 63 percent month-on-month, while that of cough and phlegm relieving, antipyretic and analgesic, and cold medicines surged 38 percent, 23 percent and 37 percent, respectively, on a monthly basis.