Fig. 1
From: Serological response to vaccination in post-acute sequelae of COVID
Pre- and post-vaccination IgG-S and IgG-N antibody levels in PASC. Individuals with PASC had a higher IgG-S antibody response to COVID vaccination compared to that seen in COVID-recovered or never-infected individuals (Panel A), suggesting more pronounced immune activation. Differences in vaccination provoked IgG-S response persisted over time despite PASC-affected and COVID-recovered individuals having similar levels of IgG-N antibody levels (Panel B), a marker of severity and timing of prior exposure to natural infection