Covid-19: Update

My Lords, I join the Minister in thanking all those involved in the vaccination programme. I was surprised that the Secretary of State in another place did not mention in his Statement the important topic of Covid passports. It is reported that Michael Gove, who is in charge of the Whitehall study into their use, is visiting Israel and is a big fan of its use of the “green pass” scheme for entry to venues including gyms, swimming pools, restaurants, theatres, cinemas and the like. Putting to one side whether such a system would be discriminatory, can the Minister explain whether it would include, as well as evidence of vaccination, recent proof of a test or of having had Covid recently? Also, does the vaccination, or recovery from Covid, nullify the chance of reinfection and therefore of becoming a vector?