A high-throughput liquid bead array assay confirms strong correlation between SARS-CoV-2 antibody level and COVID-19 severity.

iScience · 2021 · PMC7836362 · PMID 33521603

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highly significantno p-value reported

We identified a highly significant correlation between clinical severity of COVID-19 disease and the amount of SARS-CoV-2 binding antibody against the receptor binding domain.

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Quoted from the open-access full text in Europe PMC under the licence the publisher applied. The sentence is reproduced exactly as published; the emphasis is ours.