Why is his hometown Hunan Red, Guangdong Green, and all the people who live with him are Green?

Only close contacts or confirmed patients will turn red.

Health code red team stands for travel danger, and has been in contact with epidemic areas or directly with infected people. Health code red code personnel should take isolation treatment in designated medical institutions or centralized and home isolation medical observation, and management departments at all levels should focus on strict tracking management and take all necessary isolation, treatment, nucleic acid detection,

Red team said that the health code received during the epidemic was red. During the epidemic, those who received the green code passed by the code, and the yellow code and red team need to be isolated by themselves.