there are 4 high-risk areas and 5 medium-risk areas. According to the official news of the Tibet Epidemic Prevention and Control Center, as of September 6, 2122, there were 28 new asymptomatic infected people in Tibet, and the risk classification areas have been announced, including 4 high-risk areas and 5 medium-risk areas. People should pay attention to self-protection, do not go to high-risk areas, and do not gather people.