Positive cases were found in Qinhuangdao, and the whole city was blocked. On April 27, 2022, the epidemic situation in Qinhuangdao resumed, and the nucleic acid in the harbor area was found to be positive.

Qinhuangdao, referred to as "Qin" for short, is also known as a port city, a prefecture-level city under the jurisdiction of Hebei Province, an important port city in China Bohai Rim approved by the State Council, and a famous seaside tourism and leisure resort.