{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,7,30]],"date-time":"2025-07-30T09:58:00Z","timestamp":1753869480628,"version":"3.41.2"},"reference-count":20,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2024,1,18]],"date-time":"2024-01-18T00:00:00Z","timestamp":1705536000000},"content-version":"vor","delay-in-days":17,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Journal of Medical Virology"],"published-print":{"date-parts":[[2024,1]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:label\/><jats:p>The cycle\u2010threshold\u2010value (C<jats:sub>T<\/jats:sub>\u2010value) is a quantitative value of the polymerase chain reaction (PCR), which represents the gold standard for the detection of severe acute respiratory syndrome coronavirus 2 (SARS CoV 2). The C<jats:sub>T<\/jats:sub>\u2010value can be used to indicate the viral load in swabs of the airways. The collection of a specimen is the only part of the testing process, which is performed manually and carries, therefore, a high potential for increasing measurement variability. The comparison of different PCR results is often difficult since the exact swabbing technique of each test and how do swabs relate in a direct comparison is unknown. For these reasons, the infection course in a patient can be hard infer even after multiple swabs. As the Omicron variant spread from 06\/2022 to 08\/2022, all common modalities of the upper airway swabs (nasopharyngeal, oropharyngeal, combined naso\u2010oropharyngeal, nasal orifice swabs as well as swabs of the <jats:italic>buccal mucosa<\/jats:italic>), which were performed on patients with a suspected infection with SARS CoV 2. RT\u2010PCR was used for SARS CoV 2 RNA detection and the sample comparison was based on the C<jats:sub>T<\/jats:sub>\u2010values obtained. Viral loads can vary significantly depending on the swab sites of the upper airways. For the maximum clinical sensitivity, a combined naso\u2010oropharyngeal swab should be considered. In case a single point and single sample measurement is the norm, a nasopharyngeal swab can deliver the highest viral load at the presumed beginning of the infection. Furthermore, the findings of this study can be valuable to correctly interpret results of different PCR with different sampling techniques.<\/jats:p><\/jats:sec>","DOI":"10.1002\/jmv.29390","type":"journal-article","created":{"date-parts":[[2024,1,18]],"date-time":"2024-01-18T12:07:13Z","timestamp":1705579633000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["The swab site of the upper airways influences the diagnostic sensitivity for the omicron variant of SARS\u2010CoV\u20102"],"prefix":"10.1002","volume":"96","author":[{"ORCID":"https:\/\/orcid.org\/0009-0000-7234-3828","authenticated-orcid":false,"given":"Fynn","family":"Atzler","sequence":"first","affiliation":[{"name":"Stuttgart Site German Aerospace Center (DLR)  Stuttgart Germany"},{"name":"Department f\u00fcr Interdisziplin\u00e4re Akut\u2010, Notfall\u2010, und Intensivmedizin Klinikum Stuttgart  Stuttgart Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Florian","family":"Dahms","sequence":"additional","affiliation":[{"name":"Department f\u00fcr Interdisziplin\u00e4re Akut\u2010, Notfall\u2010, und Intensivmedizin Klinikum Stuttgart  Stuttgart Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Gregor","family":"Paul","sequence":"additional","affiliation":[{"name":"III. Medizinische Klinik Universit\u00e4tsklinikum Augsburg  Augsburg Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5649-4762","authenticated-orcid":false,"given":"Stojan","family":"Perisic","sequence":"additional","affiliation":[{"name":"Zentralinstitut f\u00fcr Klinische Chemie und Laboratoriumsmedizin, Klinikum Stuttgart  Stuttgart Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2024,1,18]]},"reference":[{"key":"e_1_2_9_2_1","unstructured":"World Health Organisation: Naming the coronavirus disease (COVID\u201019) and the virus taht causes it.https:\/\/www.who.int\/emergencies\/diseases\/novel-coronavirus-2019\/technical-guidance\/naming-the-coronavirus-disease-(covid-2019)-and-the-virus-that-causes-it"},{"key":"e_1_2_9_3_1","doi-asserted-by":"publisher","DOI":"10.1093\/cid\/ciaa619"},{"key":"e_1_2_9_4_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jcv.2020.104387"},{"key":"e_1_2_9_5_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jcv.2020.104442"},{"key":"e_1_2_9_6_1","doi-asserted-by":"publisher","DOI":"10.1128\/JCM.02881-20"},{"issue":"11","key":"e_1_2_9_7_1","first-page":"2","article-title":"Krankheitsschwere der ersten COVID\u201019\u2010Welle in Deutschland basierend auf den Meldungen gem\u00e4\u00df Infektionsschutzgesetz","volume":"5","author":"Schilling J","year":"2020","journal-title":"J Health Monit"},{"key":"e_1_2_9_8_1","doi-asserted-by":"publisher","DOI":"10.1002\/hed.26212"},{"key":"e_1_2_9_9_1","doi-asserted-by":"publisher","DOI":"10.2807\/1560-7917.ES.2021.26.44.2100441"},{"key":"e_1_2_9_10_1","article-title":"Where is Omicron? 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