According to the relevant policies of epidemic prevention and control in Taiyuan, it takes 48 hours to leave Taiyuan on April 19, which proves that the nucleic acid test is negative and the health code is green.
Measures for prevention and control of epidemic situation in Taiyuan: 8-hour negative proof of nucleic acid detection, three-code inspection, cases within 14 days but low risk, "7+5" isolation medical observation at home or health station, no epidemic situation in other provinces, nucleic acid sampling+antigen detection, no local epidemic situation in the province, orderly flow of urban population, and green code of health code.