Persistence of T-Cell Immunity Responses against SARS-CoV-2 for over 12 Months Post COVID-19 Infection in Unvaccinated Individuals with No Detectable IgG Antibodies.
Vassiliki C PitirigaMyrto-Sotiria PapamentzelopoulouKanella E KonstantinakouIrene V VasileiouKonstantina S SakellariouNatalia I SpyrouAthanassios TsakrisPublished in: Vaccines (2023)
Our data suggest that protective adaptive T-cellular immunity following natural infection by SARS-CoV-2 may persist for over 12 months, despite the undetectable humoral element.