Antiviral humoral immunity against SARS-CoV-2 omicron subvariants induced by XBB.1.5 monovalent vaccine in infection-naive and XBB-infected individuals

[...]we have found that natural infection with XBB subvariants, including XBB.1.5, does not efficiently induce humoral immunity against the infecting XBB subvariants.1–3 These observations raise the possibility that the XBB.1.5 monovalent vaccine might not be able to efficiently induce humoral immun...

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