Table 1:

Cohorts employed in this study.

Sample cohort	N	Gender (M/F/Unka)	Median age [IQR]b	Median days post-Sx [IQR]	Median days post-Dx [IQR]	Notes
Convalescent	197	126/64/7	42 [32–54]	28 [24–31]	24 [20–27]	Mild disease, no O2 support
Hospitalized	27	19/8	65 [55–73]	6 [1.5–7]c 13 [10–16]d	0c 8 [7–9]d	Moderate to severe disease
Control Jan 2020	45	13/32	54 [39–61]	N/A	N/A	Samples collected 1/28–1/30/2020
Ctrl Pre-COVID	171	53/103/15	56 [49–62]	N/A	N/A	Samples collected 2007–2017
Human CoV (Sweden)	17	9/8	66 [46–72]	Unk	130 [31–221]	Pre-COVID | Swab-positive for OC43/HKU1, 229E, or NL63
Human CoV (MMC)	5	3/2	32 [24–37]	Unk	Unk	Samples collected 1/14/27/20 | Swab-positive for OC43/HKU1, 229E, or NL63

^aMale/Female/Unknown

^bInterquartile range

^cSamples collected 0–1 days post-hospitalization

^dSamples collected 6–10 days post-hospitalization