Importance of SARS-CoV-2 Spike Antibodies and B Cell Reconstitution to Optimize the Prevention Strategy of COVID-19.

Several lines of evidence have shown that rituximab (RTX)-treated patients are at high risk of severe coronavirus disease 2019 (COVID-19). 1 Thus, health authorities have considered patients receiving RTX as extremely high priority for anti-SARS-CoV-2 vaccination.