Made available in DSpace on 2022-04-29T08:46:34Z (GMT). No. of bitstreams: 0 Previous issue date: 2022-01-01; Recurrence of COVID-19 in recovered patients has been increasingly reported. However, the immune mechanisms behind the recurrence have not been thoroughly investigated. The presence of neutralizing antibodies (nAbs) in recurrence/reinfection cases suggests that other types of immune response are involve...