Figure 2.

Neutralization half-maximal inhibitory concentration titers (IU/mL) against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) Omicron BA.1 (A), BA.2 (B), and BA.4/5 (C) pseudoviruses in 18 monoclonal antibody (mAb)-treated and 9 non-mAb-treated patients at day 7 (n = 19), day 28 (n = 26), and day 90 (n = 16). Early viral clearance was defined as a negative SARS-CoV-2 reverse-transcription polymerase chain reaction (RT-PCR) ≤28 days and late viral clearance as a positive SARS-CoV-2 RT-PCR >28 days. The lower cut-off for neutralization was set at 2 IU/mL and the higher cut-off at 12 150 IU/mL (dotted lines). The bold line indicates the median, boxes indicate 25th and 75th percentiles, and whiskers represent 1.5× interquartile range. The y-axis has a logarithmic scale. P values are derived from a mixed linear model. *P < .05, **P < .01.