Hello, do you want to ask when several outbreaks occurred in Lanzhou in 2022? According to the relevant information, the three outbreaks in Lanzhou in 2022 were February 8, 2022, May 7, 2022 and July 2, 20221day. According to the announcement issued by Lanzhou CDC, there have been three outbreaks in Lanzhou in 2022, which were on February 8, 2022, May 7, 2022 and July 2, 20221day, all of which were caused by the diagnosis of outsiders.