China daily has released this page with a lot of useful information about the vaccine in China.
https://enapp.chinadaily.com.cn/a/202101/08/AP5ff6ac4ca310f03332f92dc8.html
To cope with the heightened transmission risk that comes with mass migration, the NHC requires people to have a negative result for COVID-19 taken within seven days of returning to rural areas, as well as 14-day home quarantine upon arrival.
Chdcking the rules before travelling is a good idea, specially so in these virus stricken times where rules change on a daily basis, the trip.com website has a lot of good information and is frequently updated to reflect changes as they happen around the world.
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