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Caltech COVID-19 Study
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Publications + Preprints from the study

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Validating Combination Throat-Nasal Swab Specimens for Coronavirus Disease 2019 Tests Would Improve Early Detection, Especially for the Most Vulnerable (Clinical Infectious Diseases) The ratio between SARS-CoV-2 RNA viral load and culturable viral titer differs depending on stage of infection (medRxiv preprint) Index Cases First Identified by Nasal-Swab Rapid COVID-19 Tests Had More Transmission to Household Contacts Than Cases Identified by Other Test Types (PLoS One) Daily SARS-CoV-2 Nasal Antigen Tests Miss Infected and Presumably Infectious People Due to Viral-Load Differences Among Specimen Types (Microbiology Spectrum)
Validating Combination Throat-Nasal Swab Specimens for Coronavirus Disease 2019 Tests Would Improve Early Detection, Especially for the Most Vulnerable (Clinical Infectious Diseases) The ratio between SARS-CoV-2 RNA viral load and culturable viral titer differs depending on stage of infection (medRxiv preprint) Index Cases First Identified by Nasal-Swab Rapid COVID-19 Tests Had More Transmission to Household Contacts Than Cases Identified by Other Test Types (PLoS One) Daily SARS-CoV-2 Nasal Antigen Tests Miss Infected and Presumably Infectious People Due to Viral-Load Differences Among Specimen Types (Microbiology Spectrum)
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Extreme differences in SARS-CoV-2 viral loads among respiratory specimen types during presumed pre-infectious and infectious periods (PNAS Nexus) Quantitative SARS-CoV-2 Viral-Load Curves in Paired Saliva Samples and Nasal Swabs Inform Appropriate Respiratory Sampling Site and Analytical Test Sensitivity Required for Earliest Viral Detection (Journal of Clinical Microbiology)
Extreme differences in SARS-CoV-2 viral loads among respiratory specimen types during presumed pre-infectious and infectious periods (PNAS Nexus) Quantitative SARS-CoV-2 Viral-Load Curves in Paired Saliva Samples and Nasal Swabs Inform Appropriate Respiratory Sampling Site and Analytical Test Sensitivity Required for Earliest Viral Detection (Journal of Clinical Microbiology)
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Morning SARS-CoV-2 testing yields better detection of infection due to higher viral loads in saliva and nasal swabs upon waking (Microbiology Spectrum) SARS-CoV-2 Viral Load in Saliva Rises Gradually and to Moderate Levels in Some Humans (preprint on medRxiv)
Morning SARS-CoV-2 testing yields better detection of infection due to higher viral loads in saliva and nasal swabs upon waking (Microbiology Spectrum) SARS-CoV-2 Viral Load in Saliva Rises Gradually and to Moderate Levels in Some Humans (preprint on medRxiv)