Evidence map›Paper›PMID 34284319›Full record

ArticleDiagnostic microbiology and infectious disease2021

The reliability of saliva for the detection of SARS-CoV-2 in symptomatic and asymptomatic patients: Insights on the diagnostic performance and utility for COVID-19 screening.

Khaled J Alkhateeb, Meredith N Cahill, Adam S Ross, Forest W Arnold, James W Snyder

Open access · greenAbstract read
In one paragraph

Article in Diagnostic microbiology and infectious disease, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 1 pooled it
0.9field-weighted citation impact, top 23% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

11 citing papers in PubMed, 1 synthesis or guideline pooled it, 14 citations in OpenAlex.

  1. Pooled it
  2. Evaluation of an immunochromatography-based rapid antigen test, Inspecter Kowa® SARS-CoV-2, using saliva specimens for the detection of SARS-CoV-2.Journal of infection and chemotherapy : official journal of the Japan Society of Chemotherapy · 2023
    Article
  3. Article
  4. Comparing SARS-CoV-2 Viral Load in Human Saliva to Oropharyngeal Swabs, Nasopharyngeal Swabs, and Sputum: A Systematic Review and Meta-Analysis.The Canadian journal of infectious diseases & medical microbiology = Journal canadien des maladies infectieuses et de la microbiologie medicale · 2023
    Review
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  11. Importance of Adequate qPCR Controls in Infection Control.Diagnostics (Basel, Switzerland) · 2021
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 1 institution in 1 country.

Khaled J AlkhateebDepartment of Pathology and Laboratory Medicine, The University of Louisville, Louisville, KY, USA. Electronic address: kjkhateeb@gmail.com.
Meredith N CahillDepartment of Medicine, Division of Infectious Diseases, The University of Louisville, Louisville, KY, USA; Center of Excellence for Research in Infectious Diseases, Louisville, KY, USA.
Adam S RossDepartment of Emergency Medicine, The University of Louisville, Louisville, KY, USA.
Forest W ArnoldDepartment of Medicine, Division of Infectious Diseases, The University of Louisville, Louisville, KY, USA; Center of Excellence for Research in Infectious Diseases, Louisville, KY, USA.
James W SnyderDepartment of Pathology and Laboratory Medicine, The University of Louisville, Louisville, KY, USA. Electronic address: jwsnyd01@louisville.edu.
University of Louisville · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Current literature has focused on testing saliva in symptomatic patients, and little information is available regarding saliva performance in asymptomatic severe acute respiratory syndrome-coronavirus-2 (SARS-CoV-2) infection. We compared paired saliva and nasopharyngeal swabs (NPS) collected from 33 symptomatic and 12 asymptomatic known SARS-CoV-2-positive patients. Saliva had an overall sensitivity of 59%, a specificity of 95%, and a negative predictive value of 98%. Saliva demonstrated higher sensitivity in symptomatic (80%) vs. asymptomatic individuals (36%) (P = 0.006), and in high-risk (symptomatic, febrile and/or with comorbidities) (82%) vs. low-risk (asymptomatic, afebrile, and no comorbidities) (22%) patients (P = 0.0002). Cycle threshold (Ct) values in NPS specimens were higher in saliva-negative vs. saliva-positive cases (P = 0.02 and <0.001). Overall, these findings show that despite saliva's low sensitivity in asymptomatic SARS-CoV-2 infections, it can detect infections with lower Ct values and a potentially higher chance of viral transmission. Additional studies are warranted to fully evaluate saliva as a screening test for coronavirus disease-2019.

Indexed as

AdultCOVID-19FemaleHumansMaleMass ScreeningMiddle AgedNasopharynxReproducibility of ResultsSalivaSARS-CoV-2Specimen HandlingYoung AdultAsymptomaticCOVID-19Nasopharyngeal swabSalivaSARS-CoV-2Screening

Identifiers

PMID34284319
PMCPMC8180088
OpenAlexW3166891825

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.