Why can't Cao County get in?

Cao county can't get in because of the epidemic. According to the relevant public information, there is no nucleic acid test to prove that it is impossible to enter Cao County during the severe epidemic period. As of February 3, 2023, Cao county no longer checked the health code, the nucleic acid certificate was negative, there was no need to report, and no landing inspection and three-day three-day inspection were conducted. Caoxian county is under normal management, with free access. Cao County, which belongs to Heze City, Shandong Province, was called in ancient times and is located in the southwest of Shandong Province.