Table 2. Characteristics of SARS-CoV-2 convalescent donors.

Convalescents showed asymptomatic to mild COVID-19. By the time of sample collection, the wild-type SARS-CoV-2 was circulating, and VOCs emerged at a later time point. None of the donors were hospitalized or required oxygen treatment. Awareness of disease symptoms was assessed by a questionnaire.

	Convalescent donor cohort
Number of donors	16
Age (years)
Median	46
Range	19–83
Sex [n (%)]
Female	11 (68.8)
Male	5 (31.2)
Comorbidities [n (%)]
High blood pressure	6 (37.5)
Cardiovascular disease	0 (0.0)
Blood sugar disorder	2 (12.5)
Chronic lung disease	0 (0.0)
Cancer disease	0 (0.0)
Sample collection date	July 2020
Interval positive test to sample collection (weeks)
Median	17
Range	13–19
Awareness of symptoms [n (%)]
No	3 (18.75)
Mild	2 (12.5)
Moderate	6 (37.5)
Severe	5 (31.25)
Febrile illness (≥38.0°C)
No	10 (62.5)
Yes	6 (37.5)