1.Participants who are within 6-12 months from the second vaccination of BNT162b2.2. Healthy Japanese male and female subjects who are 20 to 65 years of age.3. Participants who understand and agree to comply with the study procedures and provide written informed consent.4. Participants whose BMI is 18-35 kg/m^2.5. Participants whose body temperature is below 37.5 degree Celsius at screening.6. Participants who have negative results of SARS-CoV-2 PCR test at screening and SARS-CoV-2 antigen test on Day 1 before vaccination.7. Participants who is willing and able to keep diary by himself/herself.

1.Participants who are within 6-12 months from the second vaccination of BNT162b2.2. Healthy Japanese male and female subjects who are 20 to 65 years of age.3. Participants who understand and agree to comply with the study procedures and provide written informed consent.4. Participants whose BMI is 18-35 kg/m^2.5. Participants whose body temperature is below 37.5 degree Celsius at screening.6. Participants who have negative results of SARS-CoV-2 PCR test at screening and SARS-CoV-2 antigen test on Day 1 before vaccination.7. Participants who is willing and able to keep diary by himself/herself.