According to the data of official website, there are confirmed cases in Hejian xian county, which is a key isolation area and the risk level of Hejian epidemic is high.

Hejian belongs to Cangzhou City, Hebei Province, with a total area of 1333 square kilometers. It has jurisdiction over 7 towns, 1 township, 1 provincial economic development zone, 2 sub-district offices, 76 neighborhood committees and 563 administrative villages, with a permanent population of 1 10,000.