Early HHV-6 IgG and IgA responses during acute SARS-CoV-2 infection in relation to long COVID: a multicohort observational study
Early herpesvirus-directed antibody responses following SARS-CoV-2 infection exhibit distinct virus- and isotype-specific patterns associated with long COVID, suggesting that heterogeneity in long COVID may be linked to differential herpesvirus-directed humoural immune responses that emerge early after infection.