Correlation between circulating T follicular helper cell levels after infection and a decreased risk of COVID-19 re-infection

• Our study conducted a retrospective analysis of individuals with differing susceptibilities to COVID-19. • The correlation between cTfh cells and neutralizing antibodies enhances protection against SARS-CoV-2. • cTfh cell responses are positively associated with a decreased risk of SARS-CoV-2 reinfection.