New compartment model for COVID-19

New compartment model for COVID-19 | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Article New compartment model for COVID-19 Takashi Odagaki This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-2418410/v1 This work is licensed under a CC BY 4.0 License Status: Published Journal Publication published 03 Apr, 2023 Read the published version in Scientific Reports → Version 1 posted 8 You are reading this latest preprint version Abstract Population is separated into five compartments for COVID-19; susceptible individuals (S), pre-symptomatic patients (P), asymptomatic patients (A), quarantined patients (Q) and recovered and/or dead patients (R). The time evolution of each compartment is described by a set of ordinary differential equations. Numerical solution to the set of differential equations shows that quarantining pre-symptomatic and asymptomatic patients is effective in controlling the pandemic. It is also shown that the ratio of non-symptomatic patients to the daily confirmed new cases can be as large as 20 and that the fraction of untraceable cases in new cases can be as large as 80%, depending on the policies for social distancing and PCR test. Biological sciences/Biophysics Health sciences/Medical research Physical sciences/Physics Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Published Journal Publication published 03 Apr, 2023 Read the published version in Scientific Reports → Version 1 posted Editorial decision: Major revision 23 Feb, 2023 Reviews received at journal 13 Feb, 2023 Reviewers agreed at journal 12 Feb, 2023 Reviewers invited by journal 12 Feb, 2023 Editor assigned by journal 02 Jan, 2023 Editor invited by journal 29 Dec, 2022 Submission checks completed at journal 29 Dec, 2022 First submitted to journal 27 Dec, 2022 You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. We do this by developing innovative software and high quality services for the global research community. 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Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-2418410","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Article","associatedPublications":[],"authors":[{"id":163575500,"identity":"ddcc8e4b-9da3-45d0-849d-e26c5d08b45c","order_by":0,"name":"Takashi Odagaki","email":"data:image/png;base64,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","orcid":"","institution":"Kyushu University","correspondingAuthor":true,"submittingAuthor":false,"prefix":"","firstName":"Takashi","middleName":"","lastName":"Odagaki","suffix":""}],"badges":[],"createdAt":"2022-12-27 10:14:25","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-2418410/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-2418410/v1","draftVersion":[],"editorialEvents":[{"content":"https://doi.org/10.1038/s41598-023-32159-6","type":"published","date":"2023-04-03T20:24:34+00:00"}],"editorialNote":"","failedWorkflow":false,"files":[{"id":44724720,"identity":"9142164b-47ae-48d8-af6d-d73fada4443b","added_by":"auto","created_at":"2023-10-16 20:34:09","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":328702,"visible":true,"origin":"","legend":"","description":"","filename":"SPAQR.pdf","url":"https://assets-eu.researchsquare.com/files/rs-2418410/v1_covered_3ec34d90-d4b7-4955-a25a-95afb6a50e3b.pdf"}],"financialInterests":"No competing interests reported.","formattedTitle":"New compartment model for COVID-19","fulltext":[],"fulltextSource":"","fullText":"","funders":[],"hasAdminPriorityOnWorkflow":false,"hasManuscriptDocX":false,"hasOptedInToPreprint":true,"hasPassedJournalQc":"","hasAnyPriority":false,"hideJournal":false,"highlight":"","institution":"","isAcceptedByJournal":true,"isAuthorSuppliedPdf":true,"isDeskRejected":"","isHiddenFromSearch":false,"isInQc":false,"isInWorkflow":false,"isPdf":true,"isPdfUpToDate":true,"isWithdrawnOrRetracted":false,"journal":{"display":true,"email":"[email protected]","identity":"scientific-reports","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":false,"externalIdentity":"scirep","sideBox":"Learn more about [Scientific Reports](http://www.nature.com/srep/)","snPcode":"","submissionUrl":"","title":"Scientific Reports","twitterHandle":"","acdcEnabled":true,"dfaEnabled":true,"editorialSystem":"stoa","reportingPortfolio":"Scientific Reports","inReviewEnabled":true,"inReviewRevisionsEnabled":true},"keywords":"","lastPublishedDoi":"10.21203/rs.3.rs-2418410/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-2418410/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003ePopulation is separated into five compartments for COVID-19; susceptible individuals (S), pre-symptomatic patients (P), asymptomatic patients (A), quarantined patients (Q) and recovered and/or dead patients (R). 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