A COVID-19 outbreak has reoccurred in Shanghai in recent days, with multiple confirmed local cases. From Nov. 25 to Nov. 26, more than 20 hospitals were shut down in city, and many local hospitals also suspending emergency services. Three of the four newly confirmed local cases in China reported on Nov. 25 were in Shanghai, and one was reported in Dalian City of Liaoning Province. The three patients in Shanghai had all visited Suzhou in the nearby Jiangsu Province. Both Hangzhou City in Zhejiang Province and Xuzhou City in Jiangsu Province have also reported new cases, all of who had dinner with the confirmed patients in Shanghai. Shanghai has tightened its pandemic control measures. On Nov. 26, more than 30 percent of flights at Shanghai Pudong Airport and the nearby Xuzhou Guanyin Airport were cancelled. In addition, the Shanghai City Bus and Shanghai Long-Distance Passenger Terminal also suspended many long-distance …