After Zhengzhou Education Bureau announced the epidemic situation, the opening time of colleges and universities was June 5438+February 2022-according to the epidemic situation. As of June 5438+February 2022, Zhengzhou Epidemic Prevention and Control Command issued a notice, in which there were medium and high risk areas in Zhengzhou, and Zhengzhou Education Bureau issued a notice on the opening time of colleges and universities after the epidemic in June 5438+February 2022, which was based on the real-time announcement of the epidemic in Zhengzhou and the nucleic acid investigation according to local policies.