Compared to uninfected CPs, pre-booster SARS-CoV-2 infection was associated with significantly higher antibody titres (3270.0 BAU/mL, IQR 3270.0- vs. 2174.3, IQR 553.9–3270.0; p = 0.004), as well as post-booster infections (3270.0 BUA/mL, IQR 3270.0–3270.0 vs. 1275.9 BAU/mL, IQR 3270.0–3270.0; p = <0.0001). Here, CAD is linked to infection.