Table 2.

Description of Donors With Severe Acute Respiratory Syndrome Coronavirus 2 RNA Detected in Plasma During the Delta Variant Wave, July–October 2021 (n = 10), and During the Beginning of the Omicron Variant Wave, December 2021 (n = 9)

Variant Case Number	Sex	Age Group, y	Ethnicity	Date of Donation	Method of SARS-CoV-2 Diagnosis	Symptoms Reported	Days Between Onset and Donation
Delta 1	Female	31–40	White British	20 Jul 2021	PCR	Yes	2
Delta 2	Male	51–60	Asian	5 Aug 2021	PCR	Yes	2
Delta 3	Female	41–50	White British	30 Aug 2021	Antigen	Yes	1
Delta 4	Female	31–40	Mixed Caribbean	3 Sep 2021	PCR	Yes	2
Delta 5	Male	41–50	White British	3 Sep 2021	PCR	Yes	2
Delta 6	Male	51–60	White British	6 Sep 2021	PCR	Yes	1
Delta 7	Male	21–30	White British	21 Sep 2021	Antigen	Yes	1
Delta 8	Female	41–50	White British	23 Sep 2021	PCR	No	6
Delta 9	Male	61–70	White British	8 Oct 2021	Antigen	Yes	3
Delta 10	Male	51–60	White British	13 Oct 2021	No test	Yes	1
Omicron 1	Male	61–70	White British	24 Dec 2021	Antigen	Yes	1
Omicron 2	Female	21–30	White British	20 Dec 2021	Antigen	Yes	1
Omicron 3	Male	41–50	White British	27 Dec 2021	Antigen	Yes	0
Omicron 4	Male	71–80	White British	29 Dec 2021	Antigen	Yes	1
Omicron 5	Female	61–70	White British	26 Dec 2021	PCR	Yes	1
Omicron 6	Female	71–80	White British	24 Dec 2021	PCR	Yes	4
Omicron 7	Male	51–60	White British	30 Dec 2021	Antigen	Yes	1
Omicron 8	Female	41–50	White British	31 Dec 2021	Antigen	Yes	0
Omicron 9	Male	71–80	White British	29 Dec 2021	Antigen	No	2

Abbreviations: PCR, polymerase chain reaction; SARS-CoV-2, severe acute respiratory syndrome coronavirus 2.