Perelman School of Medicine at the University of Pennsylvania Researchers release their study funding yestersay 15 Apr 21, study of Distinct antibody and memory B cell responses in SARS-CoV-2 naive and recovered individuals following mRNA vaccination by investigation of the kinetics of immune responses following both primary and secondary immunizations.

Study conducted on 44 healthy individuals who received SARS-CoV-2 mRNA vaccines at University of Pennsylvania Health System

Result: Scientists show in Science Immunology that one dose of mRNA COVID19 vaccine induces optimal antibody and B cell responses in previously infected people. Two doses are needed for immunologically naive people.

Research Study Link