Geometric Mean Fold Rise (GMFR) of SARS-CoV-2 full-length S-binding antibody levels for Booster Arm 1 (BNT162b2) and Booster Arm 2 (BNT162b2.B.1.351).;Geometric Mean Fold Rise (GMFR) of SARS-CoV-2 reference strain and B.1.351 strain neutralizing antibody levels for Booster Arm 1 (BNT162b2) and Booster Arm 2 (BNT162b2.B.1.351).;Geometric Mean IgG Concentrations (GMC) of SARS-CoV-2 full-length S-binding antibody levels for Booster Arm 1 (BNT162b2) and Booster Arm 2 (BNT162b2.B.1.351).;Geometric Mean Ratio (GMR) of SARS-CoV-2 full-length S-binding antibody levels between US lots (Arms 1, 2 and 3) in participants without evidence of infection during the study;Geometric Mean Titers (GMT) of SARS-CoV-2 reference strain and B.1.351 strain neutralizing antibody levels for Booster Arm 1 (BNT162b2) and Booster Arm 2 (BNT162b2.B.1.351).;GMR of SARS-CoV-2 full-length S-binding antibody levels between the EU lot (Arm 4) and pooled US lots (Arms 1, 2, and 3) in participants without evidence of infection during the study;GMR of SARS-CoV-2 neutralizing antibody levels between the 20-microgram dose group (Arm 5) and the corresponding 30-microgram dose group (Arm 1, 2, or 3) in participants without evidence of SARS-C0V-2 infection during the study.;Percentage of participants reporting adverse events;Percentage of participants reporting local reactions;Percentage of participants reporting serious adverse events;Percentage of participants reporting systemic events;Percentages of participants with seroresponse (based on neutralizing titers) to the B.1.351 strain.;Percentages of participants with seroresponse (based on neutralizing titers) to the reference strain.

Geometric Mean Fold Rise (GMFR) of SARS-CoV-2 full-length S-binding antibody levels for Booster Arm 1 (BNT162b2) and Booster Arm 2 (BNT162b2.B.1.351).;Geometric Mean Fold Rise (GMFR) of SARS-CoV-2 reference strain and B.1.351 strain neutralizing antibody levels for Booster Arm 1 (BNT162b2) and Booster Arm 2 (BNT162b2.B.1.351).;Geometric Mean IgG Concentrations (GMC) of SARS-CoV-2 full-length S-binding antibody levels for Booster Arm 1 (BNT162b2) and Booster Arm 2 (BNT162b2.B.1.351).;Geometric Mean Ratio (GMR) of SARS-CoV-2 full-length S-binding antibody levels between US lots (Arms 1, 2 and 3) in participants without evidence of infection during the study;Geometric Mean Titers (GMT) of SARS-CoV-2 reference strain and B.1.351 strain neutralizing antibody levels for Booster Arm 1 (BNT162b2) and Booster Arm 2 (BNT162b2.B.1.351).;GMR of SARS-CoV-2 full-length S-binding antibody levels between the EU lot (Arm 4) and pooled US lots (Arms 1, 2, and 3) in participants without evidence of infection during the study;GMR of SARS-CoV-2 neutralizing antibody levels between the 20-microgram dose group (Arm 5) and the corresponding 30-microgram dose group (Arm 1, 2, or 3) in participants without evidence of SARS-C0V-2 infection during the study.;Percentage of participants reporting adverse events;Percentage of participants reporting local reactions;Percentage of participants reporting serious adverse events;Percentage of participants reporting systemic events;Percentages of participants with seroresponse (based on neutralizing titers) to the B.1.351 strain.;Percentages of participants with seroresponse (based on neutralizing titers) to the reference strain.

Geometric Mean Ratio (GMR) of SARS-CoV-2 full-length S-binding or S1-binding antibody levels between US lots (Arms 1, 2 and 3) in participants without evidence of infection during the study;GMR of SARS-CoV-2 full-length S-binding or S1-binding antibody levels between the EU lot (Arm 4) and pooled US lots (Arms 1, 2, and 3) in participants without evidence of infection during the study;GMR of SARS-CoV-2 neutralizing antibody levels between the 20-microgram dose group (Arm 5) and the corresponding 30-microgram dose group (Arm 1, 2, or 3) in participants without evidence of SARS-C0V-2 infection during the study.;Percentage of participants reporting adverse events;Percentage of participants reporting local reactions;Percentage of participants reporting serious adverse events;Percentage of participants reporting systemic events

Geometric Mean Ratio (GMR) of SARS-CoV-2 full-length S-binding or S1-binding antibody levels between US lots (Arms 1, 2 and 3) in participants without evidence of infection during the study;GMR of SARS-CoV-2 full-length S-binding or S1-binding antibody levels between the EU lot (Arm 4) and pooled US lots (Arms 1, 2, and 3) in participants without evidence of infection during the study;GMR of SARS-CoV-2 neutralizing antibody levels between the 20-microgram dose group (Arm 5) and the corresponding 30-microgram dose group (Arm 1, 2, or 3) in participants without evidence of SARS-C0V-2 infection during the study.;Percentage of participants reporting adverse events;Percentage of participants reporting local reactions;Percentage of participants reporting serious adverse events;Percentage of participants reporting systemic events

Geometric Mean Ratio (GMR) of SARS-CoV-2 full-length S-binding antibody levels between US lots in participants without evidence of infection during the study;GMR of SARS-CoV-2 full-length S-binding antibody levels between the EU lot and pooled US lots in participants without evidence of infection during the study;Percentage of participants reporting adverse events;Percentage of participants reporting local reactions;Percentage of participants reporting serious adverse events;Percentage of participants reporting systemic events

Geometric Mean Ratio (GMR) of SARS-CoV-2 full-length S-binding antibody levels between US lots in participants without evidence of infection during the study;GMR of SARS-CoV-2 full-length S-binding antibody levels between the EU lot and pooled US lots in participants without evidence of infection during the study;Percentage of participants reporting adverse events;Percentage of participants reporting local reactions;Percentage of participants reporting serious adverse events;Percentage of participants reporting systemic events