Case report: Dengue virus serotype 3 and Oropouche virus co-infection in a Cuban traveller diagnosed in Portugal, November 2024

Case report: Dengue virus serotype 3 and Oropouche virus co-infection in a Cuban traveller diagnosed in Portugal, November 2024 | 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 Case Report Case report: Dengue virus serotype 3 and Oropouche virus co-infection in a Cuban traveller diagnosed in Portugal, November 2024 Líbia Zé-Zé, Joana Laranjinha, Vítor Borges, Ana Luísa Graça, and 6 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-6466047/v1 This work is licensed under a CC BY 4.0 License Status: Posted Version 1 posted You are reading this latest preprint version Abstract In 2024, unprecedented outbreaks of dengue virus (DENV) and Oropouche virus (OROV) were reported in Latin America and the Caribbean. We describe a case of co-infection with DENV serotype 3 and OROV imported into Portugal from Cuba. RT-PCR and next-generation sequencing confirmed the presence of both viruses in a 35-year-old male patient. Our findings highlight the importance of comprehensive multi-arbovirus diagnostics, particularly in travelers from regions experiencing concurrent outbreaks. Laboratory Diagnostics Bioinformatics Virology Molecular Biology Infectious Diseases Dengue virus Oropouche virus co-infection traveller Full Text Additional Declarations The authors declare no competing interests. Supplementary Files SupplementaryTable1.xlsx SupplementaryDataset.zip Cite Share Download PDF Status: Posted Version 1 posted 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. Our growing team is made up of researchers and industry professionals working together to solve the most critical problems facing scientific publishing. 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-6466047","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Case Report","associatedPublications":[],"authors":[{"id":444019656,"identity":"486e6a29-38e3-4f28-a47e-8aa45b7ef6a6","order_by":0,"name":"Líbia 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