1
|
Frumence E, Wilkinson DA, Klitting R, Vincent M, Mnemosyme N, Grard G, Traversier N, Li-Pat-Yuen G, Heaugwane D, Souply L, Giry C, Paty MC, Collet L, Gérardin P, Thouillot F, De Lamballerie X, Jaffar-Bandjee MC. Dynamics of emergence and genetic diversity of dengue virus in Reunion Island from 2012 to 2022. PLoS Negl Trop Dis 2024; 18:e0012184. [PMID: 38768248 PMCID: PMC11142707 DOI: 10.1371/journal.pntd.0012184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 05/31/2024] [Accepted: 05/01/2024] [Indexed: 05/22/2024] Open
Abstract
BACKGROUND Dengue is a major public health concern in Reunion Island, marked by recurrent epidemics, including successive outbreaks of dengue virus serotypes 1 and 2 (DENV1 and DENV2) with over 70,000 cases confirmed since 2017. METHODOLOGY/PRINCIPAL FINDINGS In this study, we used Oxford Nanopore NGS technology for sequencing virologically-confirmed samples and clinical isolates collected between 2012 and 2022 to investigate the molecular epidemiology and evolution of DENV in Reunion Island. Here, we generated and analyzed a total of 499 DENV1, 360 DENV2, and 18 DENV3 sequences. By phylogenetic analysis, we show that different genotypes and variants of DENV have circulated in the past decade that likely originated from Seychelles, Mayotte and Southeast Asia and highly affected areas in Asia and Africa. CONCLUSIONS/SIGNIFICANCE DENV sequences from Reunion Island exhibit a high genetic diversity which suggests regular introductions of new viral lineages from various Indian Ocean islands. The insights from our phylogenetic analysis may inform local health authorities about the endemicity of DENV variants circulating in Reunion Island and may improve dengue management and surveillance. This work emphasizes the importance of strong local coordination and collaboration to inform public health stakeholders in Reunion Island, neighboring areas, and mainland France.
Collapse
Affiliation(s)
- Etienne Frumence
- Centre National de Référence Arbovirus Associé, CHU de la Réunion Site Nord, Saint-Denis, Réunion, France
- Laboratoire de microbiologie, CHU de la Réunion-Site Nord, Saint-Denis, Réunion, France
| | - David A. Wilkinson
- UMR ASTRE, CIRAD, INRAE, Université de Montpellier, Plateforme technologique CYROI, Sainte-Clotilde, Réunion, France
| | - Raphaelle Klitting
- Unité des Virus Émergents (UVE), Aix-Marseille Univ, IRD 190, INSERM 1207, Marseille, France
- CNR des Arbovirus, Marseille, France
| | | | - Nicolas Mnemosyme
- Laboratoire de microbiologie, CHU de la Réunion-Site Nord, Saint-Denis, Réunion, France
| | | | - Nicolas Traversier
- Centre National de Référence Arbovirus Associé, CHU de la Réunion Site Nord, Saint-Denis, Réunion, France
- Laboratoire de microbiologie, CHU de la Réunion-Site Nord, Saint-Denis, Réunion, France
| | - Ghislaine Li-Pat-Yuen
- Centre National de Référence Arbovirus Associé, CHU de la Réunion Site Nord, Saint-Denis, Réunion, France
- Laboratoire de microbiologie, CHU de la Réunion-Site Nord, Saint-Denis, Réunion, France
| | - Diana Heaugwane
- Laboratoire de microbiologie, CHU de la Réunion-Site Nord, Saint-Denis, Réunion, France
| | - Laurent Souply
- Laboratoire de microbiologie, CHU de la Réunion-Site Nord, Saint-Denis, Réunion, France
| | - Claude Giry
- Centre National de Référence Arbovirus Associé, CHU de la Réunion Site Nord, Saint-Denis, Réunion, France
- Laboratoire de microbiologie, CHU de la Réunion-Site Nord, Saint-Denis, Réunion, France
| | | | | | | | - Patrick Gérardin
- INSERM CIC 1410, CHU de la Réunion, Saint-Pierre, Réunion, France
| | | | - Xavier De Lamballerie
- Unité des Virus Émergents (UVE), Aix-Marseille Univ, IRD 190, INSERM 1207, Marseille, France
- CNR des Arbovirus, Marseille, France
| | - Marie-Christine Jaffar-Bandjee
- Centre National de Référence Arbovirus Associé, CHU de la Réunion Site Nord, Saint-Denis, Réunion, France
- Laboratoire de microbiologie, CHU de la Réunion-Site Nord, Saint-Denis, Réunion, France
| |
Collapse
|
2
|
Gérardin P, Issop A, Diarra YM, Cousty J, Jaffar-Bandjee MC, Maillard O, Raffray L, Nobécourt E, Bertolotti A. Harness risk stratification of diabetic patients with dengue in a cohort study. J Infect Public Health 2024; 17:535-541. [PMID: 38310745 DOI: 10.1016/j.jiph.2024.01.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 12/13/2023] [Accepted: 01/18/2024] [Indexed: 02/06/2024] Open
Abstract
BACKGROUND Identifying predictors of severe dengue (SD) is key for triage and management of patients as well as for advising travellers to countries where dengue is endemic. In this, meta-analyses have raised diabetes mellitus as a risk factor for SD and a prognostic factor for dengue-related mortality. The purpose of this study was to assess whether diabetic patients (DPs) are at increased risk for SD in comparison to non-diabetic patients (NDPs) in a setting of high prevalence of type 2 diabetes mellitus and increasing endemicity for dengue. METHODS In a cohort study conducted during the 2019 dengue epidemic on Reunion Island, we estimated the risk ratios (RR) of DPs for SD (WHO 2009 definition), hospitalisation, intensive care unit (ICU) admission, critical care need or death in the ICU, and scales rating severity or multiple organ dysfunction syndrome (MODS), among confirmed cases of dengue (positive RT-PCR or NS1 antigen). RESULTS In a Poisson regression model adjusted for age, gender and comorbidity, DPs were more likely to develop SD (adjusted RR: 1.46, 95%CI 1.10-1.95), to be hospitalised, admitted to the ICU, and need critical care or die in the ICU. Subgroup analyses identified female DPs, non-elderly DPs (< 65 years) and DPs with low Charlson score (< 3) to be at higher risk for SD, the two first subgroups trough more severe presentation (higher Simplified Acute Physiology Score-2 values; higher MODS scores, respectively). Male gender, age less than 65 years and mixed comorbidity were identified as prognostic factors for critical care need or death in the ICU, male and non-elderly DPs being more likely to develop MODS than their non-diabetic counterparts. CONCLUSIONS Together, these data highlight the role of diabetes mellitus in the progression from dengue to SD through higher severity per se or the event of MODS.
Collapse
Affiliation(s)
- Patrick Gérardin
- INSERM, CIC 1410, Centre Hospitalier Universitaire Réunion, Saint-Pierre, La Réunion, France; Plateforme de Recherche Clinique et Translationnelle, Centre Hospitalier Universitaire Réunion, Saint-Pierre, La Réunion, France.
| | - Azizah Issop
- Service d'Endocrinologie et de Diabétologie, Centre Hospitalier Universitaire Réunion, Saint Pierre, La Réunion, France
| | - Yves-Marie Diarra
- INSERM, CIC 1410, Centre Hospitalier Universitaire Réunion, Saint-Pierre, La Réunion, France; UMR PIMIT (CNRS 9192, INSERM U1187, IRD 249, Université de La Réunion), Sainte Clotilde, La Réunion, France
| | - Julien Cousty
- Service de Réanimation Polyvalente et de Soins Continus, Centre Hospitalier Universitaire Réunion, Saint Pierre, La Réunion, France
| | - Marie-Christine Jaffar-Bandjee
- Centre National de Référence associé des arbovirus, Centre Hospitalier Universitaire Réunion, Pôle de Biologie, Saint Denis, La Réunion, France
| | - Olivier Maillard
- INSERM, CIC 1410, Centre Hospitalier Universitaire Réunion, Saint-Pierre, La Réunion, France
| | - Loïc Raffray
- UMR PIMIT (CNRS 9192, INSERM U1187, IRD 249, Université de La Réunion), Sainte Clotilde, La Réunion, France; Service de Médecine Interne, Centre Hospitalier Universitaire Réunion, Saint Denis, La Réunion, France
| | - Estelle Nobécourt
- INSERM, CIC 1410, Centre Hospitalier Universitaire Réunion, Saint-Pierre, La Réunion, France; Service d'Endocrinologie et de Diabétologie, Centre Hospitalier Universitaire Réunion, Saint Pierre, La Réunion, France; UMR Diabète Athérothrombose Thérapies Réunion Océan Indien (DéTROI) (INSERM U1188), Plateforme CYROI, University of La Réunion, Sainte Clotilde, La Réunion, France
| | - Antoine Bertolotti
- INSERM, CIC 1410, Centre Hospitalier Universitaire Réunion, Saint-Pierre, La Réunion, France; Service des Maladies Infectieuses, Médecine Interne, Dermatologie, Centre Hospitalier Universitaire Réunion, Saint Pierre, La Réunion, France
| |
Collapse
|
3
|
Mbu-Nyamsi D, Vincent M, Perez-Fontana M, Best AL, Mesnard C, Villeroy F, Foucher A, Raffray L, Terrier CSP, Bertolotti A. Ophthalmic complications during the dengue epidemic in Reunion Island in 2020: a case series and review of the literature. BMC Infect Dis 2023; 23:506. [PMID: 37528344 PMCID: PMC10394947 DOI: 10.1186/s12879-023-08432-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Accepted: 06/28/2023] [Indexed: 08/03/2023] Open
Abstract
INTRODUCTION Dengue is an arboviral disease transmitted by the dengue virus, whose vectors are Aedes aegypti and Aedes albopictus. The acute phase with its cohort of well-known symptoms is usually spontaneously favorable. Since 2020 in Reunion Island, a new symptom has appeared: the ocular damage of dengue fever, which has already been described in South Asia and South-East Asia. We therefore decided to describe the clinical, biological, ophthalmological, therapeutic, and outcomes of patients with ocular manifestations during dengue fever in Reunion Island in 2020. PATIENTS AND METHODS This was a retrospective observational study. Patients were included from January 2020 to August 2020 and then reassessed by teleconsultation 1 year later. The patients were identified from the French public health surveillance network by all ophthalmologists on the island. Medical data were collected directly from medical records. RESULTS Twenty-eight patients were included. The mean age was 41.9 years. Ocular involvement occurred approximately 9.2 days after the onset of dengue symptoms. The main symptoms were scotoma (71.4%) and sudden decrease of visual acuity (39.2%). Eighteen patients (64.2%) had macular involvement. Fourteen patients were treated with oral or intravenous corticosteroids. Twenty-two (78.5%) patients were evaluated by telephone one year later. Scotoma and decreased visual acuity persisted in 15 patients. Thirteen patients (59%) were bothered by night driving, 32% of patients had reading difficulties and 27% of patients became sensitive to prolonged exposure to screens. CONCLUSION Ocular complications of dengue require early and collegial management to limit the risk of long-term sequelae. Further studies on the characteristics and complications of dengue fever are needed to better understand this disease.
Collapse
Affiliation(s)
- Digé Mbu-Nyamsi
- Département de maladies infectieuses-médecine interne-dermatologie, CHU de La Réunion, Saint Pierre, La Réunion, France
| | - Muriel Vincent
- Santé Publique France, Océan Indien, Saint Denis, La Réunion, France
| | | | - Anne-Laurence Best
- Département d'ophtalmologie, CHU de La Réunion, Saint Pierre, La Réunion, France
| | - Charles Mesnard
- Département d'ophtalmologie, CHOR, Saint Paul, La Réunion, France
| | - Fréderic Villeroy
- Département d'ophtalmologie, CHU de La Réunion, Saint Denis, La Réunion, France
| | - Aurélie Foucher
- Département de maladies infectieuses-médecine interne-dermatologie, CHU de La Réunion, Saint Pierre, La Réunion, France
| | - Loic Raffray
- Département de médecine interne, CHU de La Réunion, Saint Denis, La Réunion, France
- Unité Mixte de Recherche Processus Infectieux en Milieu Insulaire Tropical (PIMIT), Université de La Réunion, INSERM UMR 1187, CNRS 9192, IRD 249, Plateforme CYROI, Sainte Clotilde, La Réunion, France
| | - Cécile Saint-Pastou Terrier
- Département de maladies infectieuses-médecine interne-dermatologie, CHU de La Réunion, Saint Pierre, La Réunion, France
| | - Antoine Bertolotti
- Département de maladies infectieuses-médecine interne-dermatologie, CHU de La Réunion, Saint Pierre, La Réunion, France.
- CHU de La Réunion, CIC-INSERM1410, Saint Pierre, La Réunion, France.
| |
Collapse
|