As long as through the high-risk areas are recommended home quarantine 14 days, but also depends on their own and go to the place of control how the situation. The train is transiting through Xi'an, Xi'an train station is not a medium-high risk area, the communication trip code will not change color, in Fujian can get on the train, to the destination will not be quarantined. The only surprise is that a confirmed case is found on the train, and the streaming polls show that you were in an adjacent position in the same compartment at the same time, and you were retroactively confirmed as a close contact by big data. You'll be quarantined for observation at your destination. Low-risk areas do not need a negative nucleic acid test report medium-high risk requires a negative nucleic acid test report within forty-eight hours and a green code trip code in order to avoid unnecessary trouble or take a negative nucleic acid test report within forty-eight hours is better. In short, according to the actual, do their own should be the most important. Honestly face. The above content is for reference only.