What month was the epidemic in Changchun in 2022?
The subject wants to ask: "When did the Changchun epidemic break out in 2022?" March 3, 2022. According to the query of Changchun local treasure, the epidemic situation in Changchun began on March 3, 2022, and on March 5, the Changchun Municipal Health and Wellness Committee issued a report on the epidemic situation in COVID-19.