Assessment of antibody titer and side effects after fourth doses of COVID-19 mRNA vaccination in 38 healthy volunteers

Abstract

Fourth dose of SARS-CoV-2 vaccination was started from the end of May, 2022 in Japan. However, data on the precise analysis of the side effects after fourth vaccination, remain scarce. Here, we examined the side effects and the levels of SARS-CoV-2 antibody titers in healthy volunteers who underwent BNT162b2 vaccination for the fourth time.

Keywords

• bnt162b2 vaccine
• fourth vaccination
• humoral response
• sars-cov-2
• side effects