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Trang, Nguyen Thu; Dien, Trinh Cong; Tam, Nguyen Thi; Cuong, Phan Manh; Van Duyet, Le; Thuong, Nguyen Thi Hong; Trang, Van Dinh; Thach, Pham Ngoc; van Doorn, H. Rogier; Kesteman, Thomas; Mary, Chambers; Marc, Choisy; Trinh, Dong Huu Khanh; Tam, Dong Thi Hoai; Duc, Du Hong; Viet, Dung Vu Tien; Jaom, Fisher; Barney, Flower; Ronald, Geskus; Kim, Hang Vu Thi; Chanh, Ho Quang; Hai, Ho Thi Bich; Van Hien, Ho; Bao, Hung Vu; [...]

Detection of co-infection and recombination cases with Omicron and local Delta variants of SARS-CoV-2 in Vietnam

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  • Media type: E-Article
  • Title: Detection of co-infection and recombination cases with Omicron and local Delta variants of SARS-CoV-2 in Vietnam
  • Contributor: Trang, Nguyen Thu; Dien, Trinh Cong; Tam, Nguyen Thi; Cuong, Phan Manh; Van Duyet, Le; Thuong, Nguyen Thi Hong; Trang, Van Dinh; Thach, Pham Ngoc; van Doorn, H. Rogier; Kesteman, Thomas; Mary, Chambers; Marc, Choisy; Trinh, Dong Huu Khanh; Tam, Dong Thi Hoai; Duc, Du Hong; Viet, Dung Vu Tien; Jaom, Fisher; Barney, Flower; Ronald, Geskus; Kim, Hang Vu Thi; Chanh, Ho Quang; Hai, Ho Thi Bich; Van Hien, Ho; Bao, Hung Vu; [...]
  • Published: Springer Science and Business Media LLC, 2024
  • Published in: Scientific Reports, 14 (2024) 1
  • Language: English
  • DOI: 10.1038/s41598-024-64898-5
  • ISSN: 2045-2322
  • Origination:
  • Footnote:
  • Description: AbstractThe first nationwide outbreak of COVID-19 in Vietnam started in late April 2021 and was caused almost exclusively by a single Delta lineage, AY.57. In early 2022, multiple Omicron variants co-circulated with Delta variants and quickly became dominant. The co-circulation of Delta and Omicron happened leading to possibility of co-infection and recombination events which can be revealed by viral genomic data. From January to October 2022, a total of 1028 viral RNA samples out of 4852 positive samples (Ct < 30) were sequenced by the long pooled amplicons method on Illumina platforms. All sequencing data was analysed by the workflow for SARS-CoV-2 on CLC genomics workbench and Illumina Dragen Covid application. Among those sequenced samples, we detected a case of Delta AY.57/Omicron BA.1 co-infection and two cases of infection with Delta AY.57/Omicron BA.2 recombinants which were nearly identical and had different epidemiological characteristics. Since the AY.57 lineage circulated almost exclusively in Vietnam, these results strongly suggest domestic events of co-infection and recombination. These findings highlight the strengths of genomic surveillance in monitoring the circulating variants in the community enabling rapid identification of viral changes that may affect viral properties and evolutionary events.
  • Access State: Open Access