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. 2020 Dec 10;103:540–548. doi: 10.1016/j.ijid.2020.12.014

Table 1.

Positive rates of anti-spike IgG and IgM in the enrolled subjects.

COVID-19 Non-COVID-19 Healthy controls
Total 129 24 33
IgG+ 74.41% (96/129) 0 0
IgM+ 65.12% (84/129) 0 0
IgG-IgM- 22.48%(29/129) 100% (24/24) 100% (33/33)