When the epidemic situation in China was completely unsealed.

February 8, 2022 12 to 12. According to the website of the People's Government, the COVID-19 outbreak began in June 2020. With the approval of the State Council, the comprehensive epidemic situation in China was unsealed from February 8, 2022 to June 2, 2022. Novel coronavirus infection, formerly known as novel coronavirus, was named "20 19 coronavirus disease" by the world health organization, which refers to pneumonia caused by novel coronavirus infection in 20 19.