1. Take the medical observation measures of "7-day centralized isolation" for returnees who have lived in high-risk areas in China in the last 7 days, and "7-day home isolation" for returnees who have lived in medium-risk areas in China in the last 7 days. Returnees from other provinces are required to hold a 48-hour negative certificate of nucleic acid test, conduct a nucleic acid test for free at the first landing point, scan the "Shaanxi One Code Connect Local Code" to complete information reporting and big data travel card verification, conduct nucleic acid tests twice every three days (the interval is more than 24 hours), and do not participate in gathering activities such as conferences, exhibitions, dinners, schools, child care institutions, nursing homes and welfare homes. First three days in this city.

2. Medical observation measures of "7-day centralized isolation" were taken in Xizang Autonomous Region and Inner Mongolia Autonomous Region in recent 7 days.

3. Take medical observation measures of "7-day centralized isolation" for those who have lived in Urumqi, Turpan, Bayinguoleng Mongolian Autonomous Prefecture and Yili Kazakh Autonomous Prefecture in Xinjiang Uygur Autonomous Region in recent 7 days; For people living in Xinjiang Uygur Autonomous Region except Urumqi, Turpan, Bayinguoleng Mongolian Autonomous Prefecture and Yili Kazakh Autonomous Prefecture in recent 7 days, the measures of "3 days centralized isolation +4 days home health monitoring" were adopted.

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