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Li D, Long M, Li T, Shu Y, Shan X, Zhang J, Ma D, Long S, Wang X, Jia F, Pan Y, Chen J, Liu P, Sun Q. The whole-genome sequencing of prevalent DENV-1 strains during the largest dengue virus outbreak in Xishuangbanna Dai autonomous prefecture in 2019. J Med Virol 2023; 95:e28115. [PMID: 36059257 DOI: 10.1002/jmv.28115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2022] [Revised: 08/25/2022] [Accepted: 08/30/2022] [Indexed: 01/11/2023]
Abstract
In 2019, a serious dengue virus (DENV) infection broke out in the Xishuangbanna Dai Autonomous Prefecture, China. Therefore, we conducted a molecular epidemiological analysis in people that contracted DENV serotype 1 (DENV-1) during this year. We analyzed the molecular epidemiology of six DENV-1 epidemic strains in 2019 by full-length genome sequencing, amino acid mutation site analysis, evolutionary tree analysis, and recombination site comparison analysis. Through the analysis of amino acid mutation sites, it was found that DENV-1 strain (MW386867) was different from the other five epidemic DENV-1 strains in Xishuangbanna in 2019. MW386867 had unique mutation sites at six loci. The six epidemic DENV-1 strains in Xishuangbanna in 2019 were divided into two clusters. MW386867 was highly similar to the MG679800 (Myanmar 2017), MG679801 (Myanmar 2017), and KC172834 (Laos 2008), and the other five strains were highly similar to JQ045660 (Vietnam 2011), FJ176780 (GuangDong 2006). Genetic recombination analysis revealed that there was no recombination signal in the six epidemic DENV-1 strains in Xishuangbanna in 2019. We speculate that the DENV-1 epidemic in 2019 has a co-epidemic of local strains and cross-border strains.
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Affiliation(s)
- Daiying Li
- Institute of Medical Biology, Chinese Academy of Medical Sciences, and Peking Union Medical College, Kunming, People's Republic of China.,Yunnan Key Laboratory of Vaccine Research & Development on Severe Infectious Diseases, Kunming, People's Republic of China.,Yunnan Key Laboratory of Vector-Borne Infectious Disease, Kunming, People's Republic of China
| | - MingWang Long
- Institute of Medical Biology, Chinese Academy of Medical Sciences, and Peking Union Medical College, Kunming, People's Republic of China.,Yunnan Key Laboratory of Vaccine Research & Development on Severe Infectious Diseases, Kunming, People's Republic of China.,Yunnan Key Laboratory of Vector-Borne Infectious Disease, Kunming, People's Republic of China
| | - Tingting Li
- Xishuangbanna Dai Autonomous Prefecture People's Hospital, Xishuangbanna, People's Republic of China
| | - Yun Shu
- Xishuangbanna Dai Autonomous Prefecture People's Hospital, Xishuangbanna, People's Republic of China
| | - Xiyun Shan
- Xishuangbanna Dai Autonomous Prefecture People's Hospital, Xishuangbanna, People's Republic of China
| | - Juan Zhang
- Institute of Medical Biology, Chinese Academy of Medical Sciences, and Peking Union Medical College, Kunming, People's Republic of China.,Yunnan Key Laboratory of Vaccine Research & Development on Severe Infectious Diseases, Kunming, People's Republic of China.,Yunnan Key Laboratory of Vector-Borne Infectious Disease, Kunming, People's Republic of China.,Institute of Medical Biology, Kunming Medical University, Kunming, People's Republic of China
| | - Dehong Ma
- Xishuangbanna Dai Autonomous Prefecture People's Hospital, Xishuangbanna, People's Republic of China
| | - Shuying Long
- Institute of Medical Biology, Kunming Medical University, Kunming, People's Republic of China
| | - Xiaodan Wang
- Institute of Medical Biology, Chinese Academy of Medical Sciences, and Peking Union Medical College, Kunming, People's Republic of China.,Yunnan Key Laboratory of Vaccine Research & Development on Severe Infectious Diseases, Kunming, People's Republic of China.,Yunnan Key Laboratory of Vector-Borne Infectious Disease, Kunming, People's Republic of China
| | - Fan Jia
- Institute of Medical Biology, Chinese Academy of Medical Sciences, and Peking Union Medical College, Kunming, People's Republic of China.,Yunnan Key Laboratory of Vaccine Research & Development on Severe Infectious Diseases, Kunming, People's Republic of China.,Yunnan Key Laboratory of Vector-Borne Infectious Disease, Kunming, People's Republic of China.,Institute of Medical Biology, Kunming Medical University, Kunming, People's Republic of China
| | - Yue Pan
- Institute of Medical Biology, Chinese Academy of Medical Sciences, and Peking Union Medical College, Kunming, People's Republic of China.,Yunnan Key Laboratory of Vaccine Research & Development on Severe Infectious Diseases, Kunming, People's Republic of China.,Yunnan Key Laboratory of Vector-Borne Infectious Disease, Kunming, People's Republic of China
| | - Junying Chen
- Institute of Medical Biology, Chinese Academy of Medical Sciences, and Peking Union Medical College, Kunming, People's Republic of China.,Yunnan Key Laboratory of Vaccine Research & Development on Severe Infectious Diseases, Kunming, People's Republic of China.,Yunnan Key Laboratory of Vector-Borne Infectious Disease, Kunming, People's Republic of China
| | - Pinghua Liu
- Xishuangbanna Dai Autonomous Prefecture People's Hospital, Xishuangbanna, People's Republic of China
| | - Qiangming Sun
- Institute of Medical Biology, Chinese Academy of Medical Sciences, and Peking Union Medical College, Kunming, People's Republic of China.,Yunnan Key Laboratory of Vaccine Research & Development on Severe Infectious Diseases, Kunming, People's Republic of China.,Yunnan Key Laboratory of Vector-Borne Infectious Disease, Kunming, People's Republic of China
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Calvez E, Bounmany P, Balière C, Somlor S, Viengphouthong S, Xaybounsou T, Keosenhom S, Fangkham K, Brey PT, Caro V, Lacoste V, Grandadam M. Using Background Sequencing Data to Anticipate DENV-1 Circulation in the Lao PDR. Microorganisms 2021; 9:microorganisms9112263. [PMID: 34835389 PMCID: PMC8617722 DOI: 10.3390/microorganisms9112263] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 10/21/2021] [Accepted: 10/25/2021] [Indexed: 11/29/2022] Open
Abstract
Since its first detection in 1979, dengue fever has been considered a major public health issue in the Lao People’s Democratic Republic (PDR). Dengue virus (DENV) serotype 1 was the cause of an epidemic in 2010–2011. Between 2012 and 2020, major outbreaks due successively to DENV-3, DENV-4 and recently DENV-2 have been recorded. However, DENV-1 still co-circulated in the country over this period. Here, we summarize epidemiological and molecular data of DENV-1 between 2016 and 2020 in the Lao PDR. Our data highlight the continuous circulation of DENV-1 in the country at levels ranging from 16% to 22% among serotyping tests. In addition, the phylogenetic analysis has revealed the circulation of DENV-1 genotype I at least since 2008 with a co-circulation of different clusters. Sequence data support independent DENV-1 introductions in the Lao PDR correlated with an active circulation of this serotype at the regional level in Southeast Asia. The maintenance of DENV-1 circulation over the last ten years supports a low level of immunity against this serotype within the Lao population. Thereby, the risk of a DENV-1 epidemic cannot be ruled out in the future, and this emphasizes the importance of maintaining an integrated surveillance approach to prevent major outbreaks.
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Affiliation(s)
- Elodie Calvez
- Arbovirus and Emerging Viral Diseases Laboratory, Institut Pasteur du Laos, Vientiane 01030, Laos; (P.B.); (S.S.); (S.V.); (T.X.); (S.K.); (K.F.); (V.L.); (M.G.)
- Correspondence:
| | - Phaithong Bounmany
- Arbovirus and Emerging Viral Diseases Laboratory, Institut Pasteur du Laos, Vientiane 01030, Laos; (P.B.); (S.S.); (S.V.); (T.X.); (S.K.); (K.F.); (V.L.); (M.G.)
| | - Charlotte Balière
- Environment and Infectious Risks Unit, Institut Pasteur, 75015 Paris, France; (C.B.); (V.C.)
| | - Somphavanh Somlor
- Arbovirus and Emerging Viral Diseases Laboratory, Institut Pasteur du Laos, Vientiane 01030, Laos; (P.B.); (S.S.); (S.V.); (T.X.); (S.K.); (K.F.); (V.L.); (M.G.)
| | - Souksakhone Viengphouthong
- Arbovirus and Emerging Viral Diseases Laboratory, Institut Pasteur du Laos, Vientiane 01030, Laos; (P.B.); (S.S.); (S.V.); (T.X.); (S.K.); (K.F.); (V.L.); (M.G.)
| | - Thonglakhone Xaybounsou
- Arbovirus and Emerging Viral Diseases Laboratory, Institut Pasteur du Laos, Vientiane 01030, Laos; (P.B.); (S.S.); (S.V.); (T.X.); (S.K.); (K.F.); (V.L.); (M.G.)
| | - Sitsana Keosenhom
- Arbovirus and Emerging Viral Diseases Laboratory, Institut Pasteur du Laos, Vientiane 01030, Laos; (P.B.); (S.S.); (S.V.); (T.X.); (S.K.); (K.F.); (V.L.); (M.G.)
| | - Kitphithak Fangkham
- Arbovirus and Emerging Viral Diseases Laboratory, Institut Pasteur du Laos, Vientiane 01030, Laos; (P.B.); (S.S.); (S.V.); (T.X.); (S.K.); (K.F.); (V.L.); (M.G.)
- Lao Army Institute for Preventive Medicine, Vientiane 01030, Laos
| | - Paul T. Brey
- Medical Entomology and Vector Borne Disease Unit, Institut Pasteur du Laos, Vientiane 01030, Laos;
| | - Valérie Caro
- Environment and Infectious Risks Unit, Institut Pasteur, 75015 Paris, France; (C.B.); (V.C.)
| | - Vincent Lacoste
- Arbovirus and Emerging Viral Diseases Laboratory, Institut Pasteur du Laos, Vientiane 01030, Laos; (P.B.); (S.S.); (S.V.); (T.X.); (S.K.); (K.F.); (V.L.); (M.G.)
| | - Marc Grandadam
- Arbovirus and Emerging Viral Diseases Laboratory, Institut Pasteur du Laos, Vientiane 01030, Laos; (P.B.); (S.S.); (S.V.); (T.X.); (S.K.); (K.F.); (V.L.); (M.G.)
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