I’m not sure that vaccine passports have quite the same significance as before. Previously it was thought that the vaccinated don’t transmit the virus, but now we know the infected vaccinated people do transmit the Delta variant. The load is likely to be less in milder infections but they can transmit nevertheless. Which means the vaccines mostly protect the person who is vaccinated. That is very different from, get vaccinated to protect all of us. Still there are obvious benefits, milder cases don’t fill up the hospitals and that leaves room for other illnesses to be treated.
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