Vicenti I, Basso M, Gatti F, Scaggiante R, et al. Faster decay of neutralizing antibodies in never infected than previously
infected healthcare workers three months after the second BNT162b2 mRNA COVID-19
vaccine dose. Int J Infect Dis 2021 Sep 2. pii: S1201-9712(21)00683.
PMID: 34481967