Eight times. Manzhouli is a quasi-prefecture-level city in Inner Mongolia Autonomous Region and the largest land port city in China. According to the investigation by the epidemic prevention and control department of Manzhouli City, since the outbreak of the epidemic in 2020, as of June 26, 2022, Manzhouli has experienced eight city closures. It is a national key development and opening experimental zone and a border tourism experimental zone designated by the State Council.