Early-Morning vs Spot Posterior Oropharyngeal Saliva for Diagnosis of SARS-CoV-2 Infection: Implication of Timing of Specimen Collection for Community-Wide Screening.

Open Forum Infect Dis · 2020 · PMC7299521 · PMID 32577428

Europe PMC DOI

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an overall trendno p-value reported

Results There was an overall trend of lower Ct values from specimens collected in the early morning, with a gradual decrease of viral load towards night time, but reaching statistical significance only when compared with the specimens collected at bedtime.

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