{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,12]],"date-time":"2026-05-12T13:43:14Z","timestamp":1778593394959,"version":"3.51.4"},"reference-count":19,"publisher":"Public Library of Science (PLoS)","issue":"12","license":[{"start":{"date-parts":[[2021,12,22]],"date-time":"2021-12-22T00:00:00Z","timestamp":1640131200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["www.plosone.org"],"crossmark-restriction":false},"short-container-title":["PLoS ONE"],"abstract":"<jats:sec id=\"sec001\">\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>Performance of the SD Biosensor saliva antigen rapid test was evaluated at a large designated testing site in non-hospitalized patients, with or without symptoms.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec id=\"sec002\">\n                    <jats:title>Method<\/jats:title>\n                    <jats:p>All eligible people over 18 years of age presenting for a booked appointment at the designated SARS-CoV-2 testing site were approached for inclusion and enrolled following verbal informed consent. One nasopharyngeal swab was taken to carry out the default antigen rapid test from which the results were reported back to the patient and one saliva sample was self-taken according to verbal instruction on site. This was used for the saliva antigen rapid test, the RT-PCR and for virus culture. Sensitivity of the saliva antigen rapid test was analyzed in two ways: i, compared to saliva RT-PCR; and ii, compared to virus culture of the saliva samples. Study participants were also asked to fill in a short questionnaire stating age, sex, date of symptom onset. Recommended time of \u226530mins since last meal, drink or cigarette if applicable was also recorded. The study was carried out in February-March 2021 for 4 weeks.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec id=\"sec003\">\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>We could include 789 people with complete records and results. Compared to saliva RT-PCR, overall sensitivity and specificity of the saliva antigen rapid test was 66.1% and 99.6% which increased to 88.6% with Ct \u226430 cutoff. Analysis by days post onset did not result in higher sensitivities because the large majority of people were in the very early phase of disease ie &lt;3 days post onset. When breaking down the data for symptomatic and asymptomatic individuals, sensitivity ranged from 69.2% to 50% respectively, however the total number of RT-PCR positive asymptomatic participants was very low (n = 5). Importantly, almost all culture positive samples were detected by the rapid test.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec id=\"sec004\">\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>Overall, the potential benefits of saliva antigen rapid test, could outweigh the lower sensitivity compared to nasopharyngeal antigen rapid test in a comprehensive testing strategy, especially for home\/self-testing and in vulnerable populations like elderly, disabled or children where in intrusive testing is either not possible or causes unnecessary stress.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1371\/journal.pone.0260894","type":"journal-article","created":{"date-parts":[[2021,12,22]],"date-time":"2021-12-22T13:26:11Z","timestamp":1640179571000},"page":"e0260894","update-policy":"https:\/\/doi.org\/10.1371\/journal.pone.corrections_policy","source":"Crossref","is-referenced-by-count":21,"title":["Clinical evaluation of the SD Biosensor SARS-CoV-2 saliva antigen rapid test with symptomatic and asymptomatic, non-hospitalized patients"],"prefix":"10.1371","volume":"16","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-7537-6334","authenticated-orcid":true,"given":"Zsofia","family":"Igloi","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jans","family":"Velzing","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Robin","family":"Huisman","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Corine","family":"Geurtsvankessel","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Anoushka","family":"Comvalius","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jeroen","family":"IJpelaar","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Janko","family":"van Beek","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Roel","family":"Ensing","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Timo","family":"Boelsums","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Marion","family":"Koopmans","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Richard","family":"Molenkamp","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"340","published-online":{"date-parts":[[2021,12,22]]},"reference":[{"key":"pone.0260894.ref001","unstructured":"Organization WH. 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Coronadashboard. 2021."},{"issue":"5","key":"pone.0260894.ref010","doi-asserted-by":"crossref","first-page":"1323","DOI":"10.3201\/eid2705.204688","article-title":"Clinical Evaluation of Roche SD Biosensor Rapid Antigen Test for SARS-CoV-2 in Municipal Health Service Testing Site, the Netherlands","volume":"27","author":"Z Igloi","year":"2021","journal-title":"Emerg Infect Dis"},{"key":"pone.0260894.ref011","article-title":"Detection of SARS-CoV2 antigen in human saliva may be a reliable tool for large scale screening","author":"CL Priya Kannian","year":"2020","journal-title":"medRxiv"},{"key":"pone.0260894.ref012","article-title":"Performance of qualitative and quantitative antigen tests for SARS-CoV-2 in early symptomatic patients using saliva","author":"TS Isao Yokota","year":"2020","journal-title":"medRxiv"},{"key":"pone.0260894.ref013","article-title":"Diagnostic performance of different sampling approaches for SARS-CoV-2 RT-PCR testing: a systematic review and meta-analysis","author":"NNY Tsang","year":"2021","journal-title":"Lancet Infect Dis"},{"key":"pone.0260894.ref014","article-title":"Multiplex Antibody Analysis of IgM, IgA and IgG to SARS-CoV-2 in Saliva and Serum from Infected Children and their Close Contacts","author":"SA Carlota Doba\u00f1o","year":"2021","journal-title":"medRxiv"},{"key":"pone.0260894.ref015","article-title":"Saliva viral load is a dynamic unifying correlate of COVID-19 severity and mortality","author":"CL Julio Silva","year":"2021","journal-title":"medRxiv"},{"key":"pone.0260894.ref016","article-title":"Self-Testing as an Invaluable Tool in Fighting the COVID-19 Pandemic","volume":"12","author":"P Goggolidou","year":"2021","journal-title":"J Prim Care Communit"},{"key":"pone.0260894.ref017","article-title":"Self-testing for the detection of SARS-CoV-2 infection with rapid antigen tests","author":"J. 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