Why did Zitong County close the city?

Because of the epidemic.

Study on the classification of closure in Zitong city, Mianyang city: standardized prevention and control in Zitong county.

At present, this area is a low-risk epidemic area and there is no need for isolation. However, you need to make a nucleic acid test report within 48 hours before going out, carry your ID card with you when you go out, and show your health code green code and boarding code green code when you enter the station.