Adugna Abera, Houriiyah Tegally, Geremew Tasew, Eduan Wilkinson, Abraham Ali, Feyisa Regasa, Molalegne Bitew, Mahlet Belachew, Lucious Chabuka, Gaspary Mwanyika, Derek Tshiabuila, Jennifer Giandhari, Sureshnee Pillay, Jenicca Poogavanan, Monika Moir, Moritz U.G. Kraemer, Kamran Khan, Carmen Huber, Getachew Tollera, Tobias F. Rinke de Wit, Cheryl Baxter, Richard Lessells, Dawit Wolday, Dereje Beyene, Tulio de Oliveira
{"title":"Genomic Characterization of Circulating Dengue Virus, Ethiopia, 2022–2023","authors":"Adugna Abera, Houriiyah Tegally, Geremew Tasew, Eduan Wilkinson, Abraham Ali, Feyisa Regasa, Molalegne Bitew, Mahlet Belachew, Lucious Chabuka, Gaspary Mwanyika, Derek Tshiabuila, Jennifer Giandhari, Sureshnee Pillay, Jenicca Poogavanan, Monika Moir, Moritz U.G. Kraemer, Kamran Khan, Carmen Huber, Getachew Tollera, Tobias F. Rinke de Wit, Cheryl Baxter, Richard Lessells, Dawit Wolday, Dereje Beyene, Tulio de Oliveira","doi":"10.3201/eid3103.240996","DOIUrl":null,"url":null,"abstract":"<p>In Ethiopia, dengue virus (DENV) infections have been reported in several regions; however, little is known about the genetic diversity of circulating viruses. We conducted clinical surveillance of DENV during the 2023 nationwide outbreak in Ethiopia. We enrolled patients at 3 sentinel hospital sites. Using reverse transcription PCR, we screened serum samples for 3 arboviruses and then serotyped and whole-genome sequenced DENV-positive samples. We detected DENV-1 and DENV-3 serotypes. Phylogenetic analysis identified 1 transmission cluster for DENV-1 (genotype III major lineage A) and 2 clusters for DENV-3 (genotype III major lineage B). The first DENV-3 cluster was closely related to an isolate from a 2023 dengue outbreak in Italy; the second cluster was related to isolates from India. Co-circulation of DENV-1 and DENV-3 in Ethiopia highlights the potential for severe dengue. Intensified surveillance and coordinated public health responses are needed to address the threat of severe dengue outbreaks.</p>","PeriodicalId":11595,"journal":{"name":"Emerging Infectious Diseases","volume":"17 1","pages":""},"PeriodicalIF":7.2000,"publicationDate":"2025-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Emerging Infectious Diseases","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.3201/eid3103.240996","RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"IMMUNOLOGY","Score":null,"Total":0}
Genomic Characterization of Circulating Dengue Virus, Ethiopia, 2022–2023
In Ethiopia, dengue virus (DENV) infections have been reported in several regions; however, little is known about the genetic diversity of circulating viruses. We conducted clinical surveillance of DENV during the 2023 nationwide outbreak in Ethiopia. We enrolled patients at 3 sentinel hospital sites. Using reverse transcription PCR, we screened serum samples for 3 arboviruses and then serotyped and whole-genome sequenced DENV-positive samples. We detected DENV-1 and DENV-3 serotypes. Phylogenetic analysis identified 1 transmission cluster for DENV-1 (genotype III major lineage A) and 2 clusters for DENV-3 (genotype III major lineage B). The first DENV-3 cluster was closely related to an isolate from a 2023 dengue outbreak in Italy; the second cluster was related to isolates from India. Co-circulation of DENV-1 and DENV-3 in Ethiopia highlights the potential for severe dengue. Intensified surveillance and coordinated public health responses are needed to address the threat of severe dengue outbreaks.
期刊介绍：
Emerging Infectious Diseases is a monthly open access journal published by the Centers for Disease Control and Prevention. The primary goal of this peer-reviewed journal is to advance the global recognition of both new and reemerging infectious diseases, while also enhancing our understanding of the underlying factors that contribute to disease emergence, prevention, and elimination.
Targeted towards professionals in the field of infectious diseases and related sciences, the journal encourages diverse contributions from experts in academic research, industry, clinical practice, public health, as well as specialists in economics, social sciences, and other relevant disciplines. By fostering a collaborative approach, Emerging Infectious Diseases aims to facilitate interdisciplinary dialogue and address the multifaceted challenges posed by infectious diseases.
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