The blockade was lifted in August 65438+May 2020. The prevention and control measures of elm epidemic in Changchun were lifted on August 15, 2020, and enterprises, schools and other places resumed work one after another, and the life of citizens gradually became normal. The state announced that on February 7, 2022, the national epidemic situation was released, 65438+, and the nucleic acid test was stopped. The national epidemic has been released.