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. 2020 Dec 3;3(1):54–59.e1. doi: 10.1016/j.xkme.2020.09.010

Table 2.

Antibody Results for SARS-CoV-2 IgG More Than 21 Days After PCR Test

RT-PCR+ Cases Historic Controls Total
Antibody result
 Positive 56 2 58
 Negative 2 86 88
 Total 58 88 146

Abbreviations: IgG, immunoglobulin G; RT-PCR, reverse transcriptase–polymerase chain reaction; SARS-CoV-2, severe acute respiratory syndrome coronavirus 2.