@sailorrooscout Would we see this with mRNA vaccines?
RT @yunlong_cao: A short update on how waning immunity and immune evasion by convergent mutants BQ.1.1 and XBB stack together. Data suggest that most serum obtained ~7.5 months after BA.1 breakthrough infection would hardly neutralize BQ.1.1 and XBB. (NT50 of 20 is the lower limit of our assay)

🐦🔗: https://nitter.eu/NChildersMEP/status/1584255667283447808