Twenty-two people believed to have been infected with the novel coronavirus were released in good health Friday after being quarantined for 14 days in Shanghai. 

Those quarantined as a precaution worked in the Minghang district. They were quarantined after doctors confirmed that a co-worker had been infected with the virus.

During the two-week quarantine, the people received regular health checkups and were encouraged to exercise indoors to stay fit. All were released after they showed no signs of infection.