Vaccine certificates: does the end justify the means?

An article published in Lancet explains the consequences of introducing COVID-19 vaccination passports. On the one hand, they can help to re-open the economy, and on the other hand, there is a risk of creating hierarchical social groups in which only the vaccinated will have privileges.

https://www.thelancet.com/journals/lanmic/article/PIIS2666-5247(21)00067-7/fulltext