Journal article
Validation and deployment of a direct saliva real-time RT-PCR test on pooled samples for COVID-19 surveillance testing
PloS one, v 16(12), pp e0261956-e0261956
30 Dec 2021
PMID: 34969053
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
A direct, real-time reverse transcriptase PCR test on pooled saliva was validated in 2,786 participants against oropharyngeal swabs. Among asymptomatic/pre-symptomatic participants, the test was found to be in 99.21% agreement and 45% more sensitive than contemporaneous oropharyngeal swabs. The test was then used for surveillance testing on 44,242 saliva samples from asymptomatic participants. Those whose saliva showed evidence of SARS-CoV-2 within 50 cycles of amplification were referred for confirmatory testing, with 87% of those tested by nasal swab within 72 hours receiving a positive diagnostic result on Abbott ID NOW or real-time PCR platforms. Median Ct values on the saliva PCR for those with a positive and negative confirmatory tests was 30.67 and 35.92 respectively, however, binary logistic regression analysis of the saliva Ct values indicates that Ct thresholds as high as 47 may be useful in a surveillance setting. Overall, data indicate that direct RT-PCR testing of pooled saliva samples is an effective method of SARS-CoV-2 surveillance.
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Details
- Title
- Validation and deployment of a direct saliva real-time RT-PCR test on pooled samples for COVID-19 surveillance testing
- Creators
- Amanda Rainey - Miami UniversityAustin Pierce - Miami UniversityXiaoyun Deng - Miami UniversityLuis A Actis - Miami UniversityPhilip Smith - Miami UniversityAndor J Kiss - Miami UniversityTimothy J Wilson - Miami University
- Publication Details
- PloS one, v 16(12), pp e0261956-e0261956
- Publisher
- Public LIbrary of Science (PLOS)
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- A.J. Drexel Autism Institute
- Web of Science ID
- WOS:000775510400024
- Scopus ID
- 2-s2.0-85122032787
- Other Identifier
- 991022031024204721
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- Web of Science research areas
- Microbiology