T. Ben Tanfous

This study compares memory B cell responses after single-dose Ad26.COV2.S and mRNA vaccines, finding lower quantities but comparable neutralizing quality in Ad26.COV2.S recipients.

This study shows that a third mRNA vaccine dose increases the potency and breadth of SARS-CoV-2 neutralizing antibodies, particularly against the Omicron variant, through the expansion and evolution of memory B cells.

This study examines memory B cell evolution 5 months after mRNA vaccination in naive individuals, finding increased neutralizing activity but no further breadth or potency, and higher overall plasma neutralizing potency compared to natural infection.