Second Dose of the BNT162b2 mRNA Vaccine in Greece: The Value of Timely Administration

Aim: Our study aimed to assess the generation of neutralizing antibodies elicited 14 days post-injection of each dose of the BNT162b2 in 401 Greek healthcare workers, 59 of whom were previously-infected. Methods: The SARS-CoV-2 IgG II Quant assay on the Architect System was employed to monitor titers of neutralizing IgG against the receptor-binding domain of the S1 subunit of the spike protein in participant-derived serum samples....