{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,8]],"date-time":"2025-10-08T22:22:38Z","timestamp":1759962158623,"version":"3.41.2"},"reference-count":58,"publisher":"Oxford University Press (OUP)","issue":"1","license":[{"start":{"date-parts":[[2024,5,22]],"date-time":"2024-05-22T00:00:00Z","timestamp":1716336000000},"content-version":"vor","delay-in-days":142,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Microbiologia Molecular, Estrutural e Celular"},{"DOI":"10.13039\/501100008530","name":"Fundo Europeu de Desenvolvimento Regional","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100008530","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2024,1,11]]},"abstract":"<jats:title>Abstract<\/jats:title>\n               <jats:p>The gold standard for coronavirus disease 2019 diagnostic testing relies on RNA extraction from naso\/oropharyngeal swab followed by amplification through reverse transcription-polymerase chain reaction (RT-PCR) with fluorogenic probes. While the test is extremely sensitive and specific, its high cost and the potential discomfort associated with specimen collection made it suboptimal for public health screening purposes. In this study, we developed an equally reliable, but cheaper and less invasive alternative test based on a one-step RT-PCR with the DNA-intercalating dye SYBR Green, which enables the detection of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) directly from saliva samples or RNA isolated from nasopharyngeal (NP) swabs. Importantly, we found that this type of testing can be fine-tuned to discriminate SARS-CoV-2 variants of concern. The saliva RT-PCR SYBR Green test was successfully used in a mass-screening initiative targeting nearly 4500 asymptomatic children under the age of 12. Testing was performed at a reasonable cost, and in some cases, the saliva test outperformed NP rapid antigen tests in identifying infected children. Whole genome sequencing revealed that the antigen testing failure could not be attributed to a specific lineage of SARS-CoV-2. Overall, this work strongly supports the view that RT-PCR saliva tests based on DNA-intercalating dyes represent a powerful strategy for community screening of SARS-CoV-2. The tests can be easily applied to other infectious agents and, therefore, constitute a powerful resource for an effective response to future pandemics.<\/jats:p>","DOI":"10.1093\/biomethods\/bpae035","type":"journal-article","created":{"date-parts":[[2024,5,22]],"date-time":"2024-05-22T16:30:42Z","timestamp":1716395442000},"source":"Crossref","is-referenced-by-count":2,"title":["A one-step low-cost molecular test for SARS-CoV-2 detection suitable for community testing using minimally processed saliva"],"prefix":"10.1093","volume":"9","author":[{"given":"Sofia M","family":"da Silva","sequence":"first","affiliation":[{"name":"Instituto de Tecnologia Qu\u00edmica e Biol\u00f3gica Ant\u00f3nio Xavier, Universidade Nova de Lisboa , Oeiras, 2780-157, Portugal"}]},{"given":"Catarina","family":"Amaral","sequence":"additional","affiliation":[{"name":"Instituto de Tecnologia Qu\u00edmica e Biol\u00f3gica Ant\u00f3nio Xavier, Universidade Nova de Lisboa , Oeiras, 2780-157, Portugal"}]},{"given":"Cl\u00e1udia","family":"Malta-Lu\u00eds","sequence":"additional","affiliation":[{"name":"Instituto de Tecnologia Qu\u00edmica e Biol\u00f3gica Ant\u00f3nio Xavier, Universidade Nova de Lisboa , Oeiras, 2780-157, Portugal"}]},{"given":"Diana","family":"Grilo","sequence":"additional","affiliation":[{"name":"Instituto de Tecnologia Qu\u00edmica e Biol\u00f3gica Ant\u00f3nio Xavier, Universidade Nova de Lisboa , Oeiras, 2780-157, Portugal"}]},{"given":"Am\u00e9rico G","family":"Duarte","sequence":"additional","affiliation":[{"name":"Instituto de Tecnologia Qu\u00edmica e Biol\u00f3gica Ant\u00f3nio Xavier, Universidade Nova de Lisboa , Oeiras, 2780-157, Portugal"}]},{"given":"In\u00eas","family":"Morais","sequence":"additional","affiliation":[{"name":"Instituto de Tecnologia Qu\u00edmica e Biol\u00f3gica Ant\u00f3nio Xavier, Universidade Nova de Lisboa , Oeiras, 2780-157, Portugal"}]},{"given":"Gon\u00e7alo","family":"Afonso","sequence":"additional","affiliation":[{"name":"Instituto de Tecnologia Qu\u00edmica e Biol\u00f3gica Ant\u00f3nio Xavier, Universidade Nova de Lisboa , Oeiras, 2780-157, Portugal"}]},{"given":"Nuno","family":"Faria","sequence":"additional","affiliation":[{"name":"Instituto de Tecnologia Qu\u00edmica e Biol\u00f3gica Ant\u00f3nio Xavier, Universidade Nova de Lisboa , Oeiras, 2780-157, Portugal"}]},{"given":"Wilson","family":"Antunes","sequence":"additional","affiliation":[{"name":"Centro de Investiga\u00e7\u00e3o da Academia Militar (CINAMIL), Unidade Militar Laboratorial de Defesa Biol\u00f3gica e Qu\u00edmica (UMLDBQ), Av. Dr Alfredo Bensa\u00fade , Lisboa, 1849-012, Portugal"}]},{"given":"In\u00eas","family":"Gomes","sequence":"additional","affiliation":[{"name":"Centro de Investiga\u00e7\u00e3o da Academia Militar (CINAMIL), Unidade Militar Laboratorial de Defesa Biol\u00f3gica e Qu\u00edmica (UMLDBQ), Av. Dr Alfredo Bensa\u00fade , Lisboa, 1849-012, Portugal"}]},{"given":"Raquel","family":"S\u00e1-Le\u00e3o","sequence":"additional","affiliation":[{"name":"Instituto de Tecnologia Qu\u00edmica e Biol\u00f3gica Ant\u00f3nio Xavier, Universidade Nova de Lisboa , Oeiras, 2780-157, Portugal"}]},{"given":"Maria","family":"Miragaia","sequence":"additional","affiliation":[{"name":"Instituto de Tecnologia Qu\u00edmica e Biol\u00f3gica Ant\u00f3nio Xavier, Universidade Nova de Lisboa , Oeiras, 2780-157, Portugal"}]},{"given":"M\u00f3nica","family":"Serrano","sequence":"additional","affiliation":[{"name":"Instituto de Tecnologia Qu\u00edmica e Biol\u00f3gica Ant\u00f3nio Xavier, Universidade Nova de Lisboa , Oeiras, 2780-157, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5158-6414","authenticated-orcid":false,"given":"Catarina","family":"Pimentel","sequence":"additional","affiliation":[{"name":"Instituto de Tecnologia Qu\u00edmica e Biol\u00f3gica Ant\u00f3nio Xavier, Universidade Nova de 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