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. 2021 Dec 26;28:e00261. doi: 10.1016/j.plabm.2021.e00261

Table 1.

Summary of SARS-CoV-2 antibody test post-vaccination in TCH employees.

Number Percentage
Total Antibody Tests 3266 100
Total Positive Response 3244 99.4
Total Negative Response 21 0.6
Subsequently had a positive Ab response after another vaccine dose 6 28.6a
On immunosuppressive therapy/biologics 14 66.7a
No obvious reason for negative response 2 10.5a
a

Percentage within the 21 non-responders.