Key quote: "Evidence is building that this phenomenon, also known as immune imprinting, is at work in Covid-19. The implication: Boosting with an Omicron-specific vaccine might only reawaken earlier immune responses, whether they were spurred by vaccination or infection. In other words, an Omicron-specific vaccine may have no advantage over simply boosting with the original vaccines."
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[ 4.3 ms ] story [ 17.7 ms ] threadKey quote: "Evidence is building that this phenomenon, also known as immune imprinting, is at work in Covid-19. The implication: Boosting with an Omicron-specific vaccine might only reawaken earlier immune responses, whether they were spurred by vaccination or infection. In other words, an Omicron-specific vaccine may have no advantage over simply boosting with the original vaccines."
https://en.m.wikipedia.org/wiki/Original_antigenic_sin