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. 2021 Jan 14;118(5):e2021615118. doi: 10.1073/pnas.2021615118

Table 1.

Statistical association between SARS-CoV-2 VN IgG titers and clinical measures

RT-PCR positive or COVID-19 symptoms ACE inhibition
< Mean percent inhibition (21.8%) > Mean percent inhibition (21.8%) Total
Negative 18 2 20
Positive 14 18 32
Total 32 20 52

P = 0.00085258.