Proinflammatory cytokines are associated with prolonged viral RNA shedding in COVID-19 patients.

Clin Immunol · 2020 · PMC7554496 · PMID 33068796

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a slightly increasing trendno p-value reported

IL-6 was significantly higher in the prolonged group and continued to decline until week 4, with a slightly increasing trend thereafter.

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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.