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immunity passport (But the concept of immunity passports remains deeply contentious, and anyone banking on it for a 2021 summer vacation could be disappointed.  cnn.com Phyloneer); immunity certificate (wikipedia.org Phyloneer) | |||
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| immunity passport (But the concept of immunity passports remains deeply contentious, and anyone banking on it for a 2021 summer vacation could be disappointed. cnn.com Phyloneer); immunity certificate (wikipedia.org Phyloneer) | |||