Multi-center nationwide comparison of seven serology assays reveals a SARS-CoV-2 non-responding seronegative subpopulation.

EClinicalMedicine · 2020 · PMC7676374 · PMID 33235985

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showed a trendno p-value reported

As previously reported [12] , we found the titers in Abbott, Diasorin, VIDAS IgG and ELISA to be significantly positively correlated while titers in Beckman and Siemens showed a trend for positive correlation with disease severity between asymptomatic to mild to moderate/severe patients.

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did not reach statistical significanceno p-value reported

In 4 kits (Abbott, Diasorin, VIDAS IgG and the ELISA), the titers showed a significant increase from asymptomatic to mild to moderate/severe cases, while in 2 other kits (Beckman and Siemens) this increase did not reach statistical significance.

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