Long-Term Longitudinal Evaluation of Six Commercial Immunoassays for the Detection of IgM and IgG Antibodies against SARS CoV-2.

Viruses · 2021 · PMC8310110 · PMID 34206895

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showed a trendno p-value reported

We noticed that the IgM-positive rate showed a trend to decline after four weeks; however, the IgG-positive rate increased, and then became stable over time, except for the IgG antibodies detected by ELISA, which also dropped after four weeks PSO.

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