Days required for airport health insurance

How many days does the airport health treasure need: one day, two days and three days. If the number of days of nucleic acid detection displayed on Beijing Health Bao is 1 day, 2 days or 3 days, passengers can enter the terminal normally. If the number of days of nucleic acid display is 4 days, the field staff will further check the sampling time of passenger nucleic acid. If it meets the requirement of negative nucleic acid test within 72 hours before entering the terminal, you can also enter the terminal.