ABSTRACT Rising breakthrough infections with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) Omicron BA. 4/5 led to the performance of various studies investigating systemic immunity and neutralizing antibodies in sera. but mucosal immunity remains understudied. In this cohort study. https://www.jmannino.com/best-catch-Sophie-Allport-Bee-Blackout-Ready-Made-Eyelet-Curtains-Duck-Egg-special-save/