Vaccine passports around the worldBMJ 2021; 374 doi: https://doi.org/10.1136/bmj.n2142 (Published 01 September 2021) Cite this as: BMJ 2021;374:n2142
As the world learns to live with the virus, countries are adopting vaccine certification as a way to open up borders and activities. But with a coordinated global system still some way off, large differences remain in practice.
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