What does Dali 3+2 epidemic prevention mean?

Dali 3+2 epidemic prevention is three regions and two channels. There are three areas and two passages, namely, living area, medical observation area and material supply area, staff passage and isolated personnel passage. Article 5 of the novel coronavirus Prevention and Control Plan (Eighth Edition) reasonably selects centralized isolation places, and sets up and standardizes management according to the standards of three-zone dual-channel living area, medical observation area, material guarantee and supply area, staff passage and isolated personnel passage, and strictly achieves single person and single room. It is necessary to provide complete staff, implement measures such as external closed management, internal standardized management, cleaning and disinfection, garbage disposal and environmental monitoring, and do a good job in service guarantee and psychological work. Wear a mask when going out during the epidemic, don't gather and disinfect frequently.