Yanji, Dunhua and Tumen. According to the query of Yanbian Epidemic Prevention and Control Center, as of February 8, 2122, there were epidemic situations in Yanji City, Dunhua City and Tumen City in this area. Yanbian Korean Autonomous Prefecture, an autonomous prefecture under the jurisdiction of Jilin Province, is located at the border between China and North Korea in the east of Jilin Province, at the junction of China, Russia and North Korea, and at the border of Primorsky Krai in Russia in the east.