FIG 2.

Violin plot comparison of mean MFI values for patients admitted to the ICU (n = 66) versus all other SARS-CoV-2-infected patients (n = 74). Data shown are for serological test results interpreted as positive only. Only 1 test for each unique patient was randomly selected for inclusion in each time interval bin (≤5, 6 to 10, 11 to 15, 16 to 20, and ≥21 days from symptom onset). Lines indicate means. Differences between violin plots are calculated using an unpaired t test: *, P ≤ 0.05; **, P ≤ 0.01.