Table 1. Cohort characteristics.

Number of patients	61
Total number of samples collected	209
Number of samples/patient:
Median	3
Range	1–8
Female	36
Male	25
Age (Years):
Median	74
Range	26–98
>65 years	41
Hospitalized patients	27
Nonhospitalized patients	34
Immunocompromised patients	6 (2 kidney transplant, 2 bone marrow transplant, 2 chemotherapy)
Number of samples (days post-PCR)
0–59	52
60–119	49
120–179	49
≥180	59
Number of patients (days post-PCR)
0–59	50
60–119	36
120–179	42
≥180	46