Definition
An immunity passport (also known as a 'risk-free certificate' or 'immunity certificate') is a credential given to a person who is assumed to be immune from COVID-19 and so protected against re-infection. This 'passport' would give them rights and privileges that other members of the community do not have such as to work or travel.
For Covid-19 this requires a process through which people are reliably tested for immunity and there is a secure process of issuing a document or other…