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. 2021 Sep 20:1–4. doi: 10.1017/ice.2021.412

Table 1.

Description of Infection Healthcare Personnel

Participant
No.
Age Sex Symptoms SARS-CoV-2 Cycle Threshold Vaccine Status Time From Second Dose
(Days)
No. of Positive Contacts Serology Within 3 Days of Diagnosis
AU/mLa
Serology Within 3 Days of Diagnosis
BAU/mL
Serology After at Least 12 Days of Diagnosis
AU/mLa
Serology After at Least 12 Days of Diagnosis
BAU/mL
NGS
Findings
1 26 Female Mild 16 Unvaccinated NA NA
2 31 Female Mild 15 Unvaccinated NA NA
3 32 Male Asymptomatic 16 Unvaccinated NA NA
4 46 Female Mild 27 Unvaccinated NA Anti-S negative
Anti-N negative
B.1.1.7/501.v1
5 24 Female Mild 15 Partially vaccinated NA NA
6 67 Female Mild 20.5 Partially vaccinated NA Anti-S positive, 1554
Anti-N negative
Anti-S positive, 221 B.1.1.7/501.v1
7 32 Female Asymptomatic 17 Partially vaccinated 4 0/2 Anti-S positive, 14260
Anti-N negative
Anti-S positive, 2025 B.1.1.7/501.v1
8 67 Female Asymptomatic 23 Fully vaccinated 9 0/0 Anti-S -positive, 11190
Anti-N negative
Anti-S positive, 1589 Anti-S positive, 6808
Anti-N positive
Anti-S positive, 967 B.1.1.7/501.v1
9 58 Female Mild 22 Fully vaccinated 11 0/7 Only 6 tested Anti-S positive, 965
Anti-N negative
Anti-S positive, 137 Anti-S positive, 13045
Anti-N negative
Anti-S positive, 1852 B.1.1.7/501.v1
10 49 Male Asymptomatic 31 Fully vaccinated 16 0/3
Not tested
Anti-S positive, 12479
Anti-N negative
Anti-S positive, 1772
11 38 Female Asymptomatic 23 Fully vaccinated 14 0/4
Only 1 tested
Anti-S positive, 4653
Anti-N negative
Anti-S positive, 661 Anti-S positive, 6223
Anti-N positive
Anti-S positive, 884
12 66 Female Mild 20 Fully vaccinated 20 0/6 NA Anti-S positive, 21947
Anti-N positive
Anti-S positive, 3116
13 60 Female Mild 29 Fully vaccinated 20 0/2
Not tested
NA Anti-S positive, 24616
Anti-N positive
Anti-S positive, 3495 B.1.1.7/501.v1
14 54 Female Asymptomatic 36 Fully vaccinated 14 1/1 NA
15 41 Male Asymptomatic 19 Fully vaccinated 10 0/4
Not tested
NA B.1.1.7/501.v1*

Note. AU/mL; arbitrary units per milliliter; BAU/mL, WHO binding antibody units; NA, not available. NGS, next-generation sequencing

a

IgG II Quant assay are reported in AU/mL. A conversion factor between AU/mL and BAU/mL has been established as 1 BAU = 0.142 AU. Additional SARS-CoV-2 positive RNA of a seventh employee was also characterized as the same variant based on receptor-binding domain (RBD) sequencing alone without performing whole-genome sequencing (data not shown in the main text)