Thousands were ordered into quarantine after cluster of cases linked to department store.
Nearly a third of the confirmed coronavirus cases in Tianjin, a city of more than 15 million about 70 miles southeast of Beijing, have been linked to one department store, adding to fears about rapid transmission in tightly clustered communities.
Of 102 confirmed cases in the city, at least 33 patients worked or shopped at a department store in the Baodi district, or had close contact with employees or customers, according to the Tianjin health authorities. Many of them had no history of travel to Wuhan, the city where the outbreak emerged.
Officials estimated that 11,700 customers had visited the shopping complex during a period in late January. The authorities said that those customers would be quarantined, and that the store itself, which they did not identify, had been sealed and disinfected.