Can Huang Ma transfer from Shanghai to Guilin Airport?

You can't. The yellow code refers to the abbreviation of the phenomenon that the health code is yellow in epidemic prevention work in COVID-19, which is generally as follows: the body temperature is 37.3℃ or above, or there are respiratory symptoms, and people from epidemic risk areas have had close contact with confirmed patients, suspected patients and asymptomatic infected people within 14 days. In this regard, the airport will quarantine passengers with suspected symptoms for medical observation for 14 days, and boarding is not allowed, so the yellow code is not allowed.