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Garcia-Van Smévoorde M, Calvez E, Quétel I, Dollin C, Breurec S, Vega-Rúa A. Ingestion of amoxicillin-clavulanic acid at therapeutic concentration during blood meal impacts Aedes aegypti microbiota and dengue virus transmission. Sci Rep 2024; 14:13701. [PMID: 38871831 DOI: 10.1038/s41598-024-64221-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2024] [Accepted: 06/06/2024] [Indexed: 06/15/2024] Open
Abstract
Dengue virus (DENV), mainly transmitted by Aedes aegypti mosquitoes, is the most prevalent arbovirus worldwide, representing a public health problem in tropical and subtropical countries. In these areas, antibiotic consumption rises which may impact both mosquito microbiota and dengue transmission. Here, we assessed how the ingestion by Ae. aegypti of therapeutic concentrations of amoxicillin-clavulanic Acid association (Amox/Clav), a broad-spectrum antibiotic used to treat febrile symptoms worldwide, impacted its microbiota. We also evaluated whether simultaneous ingestion of antibiotic and DENV impacted Ae. aegypti ability to transmit this virus. We found that Amox/Clav ingestion impacted microbiota composition in Ae. aegypti and we confirmed such impact in field-collected mosquitoes. Furthermore, we observed that Amox/Clav ingestion enhanced DENV dissemination and transmission by this mosquito at 21 days post-DENV exposure. These findings increase our understanding of factors linked to human hosts that may influence dengue transmission dynamics in regions with mass-drug administration programs.
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Affiliation(s)
- Margot Garcia-Van Smévoorde
- Vector Control Research Laboratory, Transmission Reservoir and Pathogens Diversity Unit, Institut Pasteur de La Guadeloupe, 97139, Les Abymes, Guadeloupe, France
| | - Elodie Calvez
- Vector Control Research Laboratory, Transmission Reservoir and Pathogens Diversity Unit, Institut Pasteur de La Guadeloupe, 97139, Les Abymes, Guadeloupe, France
| | - Isaure Quétel
- Microbial Ecosystems Interaction Laboratory, Transmission Reservoir and Pathogens Diversity Unit, Institut Pasteur de La Guadeloupe, 97139, Les Abymes, Guadeloupe, France
| | - Christelle Dollin
- Vector Control Research Laboratory, Transmission Reservoir and Pathogens Diversity Unit, Institut Pasteur de La Guadeloupe, 97139, Les Abymes, Guadeloupe, France
| | - Sébastien Breurec
- Microbial Ecosystems Interaction Laboratory, Transmission Reservoir and Pathogens Diversity Unit, Institut Pasteur de La Guadeloupe, 97139, Les Abymes, Guadeloupe, France
- Department of Clinical Microbiology, University Hospitals of Guadeloupe, 97159, Pointe-À-Pitre/Les Abymes, Guadeloupe, France
- Faculty of Medecine Hyacinthe Bastaraud, University of the Antilles, 97110, Pointe-À-Pitre, Guadeloupe, France
- INSERM 1424, Center for Clinical Investigation, University Hospital Center of Guadeloupe, 97139, Les Abymes, Guadeloupe, France
- Pathogenesis and Control of Chronic and Emerging Infections, INSERM, Etablissement Français du Sang, University of Montpellier, 34394, Montpellier, France
| | - Anubis Vega-Rúa
- Vector Control Research Laboratory, Transmission Reservoir and Pathogens Diversity Unit, Institut Pasteur de La Guadeloupe, 97139, Les Abymes, Guadeloupe, France.
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2
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Sann S, Heng B, Vo HTM, Arroyo Hornero R, Lay S, Sorn S, Ken S, Ou TP, Laurent D, Yay C, Ly S, Dussart P, Duong V, Sakuntabhai A, Kleinewietfeld M, Cantaert T. Increased frequencies of highly activated regulatory T cells skewed to a T helper 1-like phenotype with reduced suppressive capacity in dengue patients. mBio 2024; 15:e0006324. [PMID: 38752787 DOI: 10.1128/mbio.00063-24] [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: 01/09/2024] [Accepted: 04/08/2024] [Indexed: 06/13/2024] Open
Abstract
The pathogenesis of dengue involves a complex interplay between the viral factor and the host immune response. A mismatch between the infecting serotype and the adaptive memory response is hypothesized to lead to exacerbated immune responses resulting in severe dengue. Here, we aim to define in detail the phenotype and function of different regulatory T cell (Treg) subsets and their association with disease severity in a cohort of acute dengue virus (DENV)-infected Cambodian children. Treg frequencies and proliferation of Tregs are increased in dengue patients compared to age-matched controls. Tregs from dengue patients are skewed to a Th1-type Treg phenotype. Interestingly, Tregs from severe dengue patients produce more interleukin-10 after in vitro stimulation compared to Tregs from classical dengue fever patients. Functionally, Tregs from dengue patients have reduced suppressive capacity, irrespective of disease severity. Taken together, these data suggest that even though Treg frequencies are increased in the blood of acute DENV-infected patients, Tregs fail to resolve inflammation and thereby could contribute to the immunopathology of dengue. IMPORTANCE According to the World Health Organization, dengue is the fastest-spreading, epidemic-prone infectious disease. The extent of dengue virus infections increased over the years, mainly driven by globalization-including travel and trade-and environmental changes. Dengue is an immunopathology caused by an imbalanced immune response to a secondary heterotypic infection. As regulatory T cells (Tregs) are essential in maintaining immune homeostasis and dampening excessive immune activation, this study addressed the role of Tregs in dengue immunopathology. We show that Tregs from dengue patients are highly activated, skewed to a Th1-like Treg phenotype and less suppressive compared to healthy donor Tregs. Our data suggest that Tregs fail to resolve ongoing inflammation during dengue infection and hence contribute to the immunopathology of severe dengue disease. These data clarify the role of Tregs in dengue immunopathogenesis, emphasizing the need to develop T cell-based vaccines for dengue.
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Affiliation(s)
- Sotheary Sann
- Immunology Unit, Institut Pasteur du Cambodge, Pasteur Network, Phnom Penh, Cambodia
- VIB Laboratory of Translational Immunomodulation, Hasselt University, Diepenbeek, Belgium
- Department of Immunology, Hasselt University, Diepenbeek, Belgium
- University Multiple Sclerosis Center, Hasselt University, Diepenbeek, Belgium
| | - Borita Heng
- Immunology Unit, Institut Pasteur du Cambodge, Pasteur Network, Phnom Penh, Cambodia
| | - Hoa Thi My Vo
- Immunology Unit, Institut Pasteur du Cambodge, Pasteur Network, Phnom Penh, Cambodia
| | - Rebeca Arroyo Hornero
- VIB Laboratory of Translational Immunomodulation, Hasselt University, Diepenbeek, Belgium
- Department of Immunology, Hasselt University, Diepenbeek, Belgium
- University Multiple Sclerosis Center, Hasselt University, Diepenbeek, Belgium
| | - Sokchea Lay
- Immunology Unit, Institut Pasteur du Cambodge, Pasteur Network, Phnom Penh, Cambodia
| | - Sopheak Sorn
- Epidemiology and Public Health Unit, Institut Pasteur du Cambodge, Pasteur Network, Phnom Penh, Cambodia
| | - Sreymom Ken
- Virology Unit, Institut Pasteur du Cambodge, Pasteur Network, Phnom Penh, Cambodia
| | - Tey Putita Ou
- Virology Unit, Institut Pasteur du Cambodge, Pasteur Network, Phnom Penh, Cambodia
| | - Denis Laurent
- Kantha Bopha Children's Hospital, Phnom Penh, Cambodia
| | | | - Sowath Ly
- Epidemiology and Public Health Unit, Institut Pasteur du Cambodge, Pasteur Network, Phnom Penh, Cambodia
| | - Philippe Dussart
- Virology Unit, Institut Pasteur du Cambodge, Pasteur Network, Phnom Penh, Cambodia
| | - Veasna Duong
- Virology Unit, Institut Pasteur du Cambodge, Pasteur Network, Phnom Penh, Cambodia
| | - Anavaj Sakuntabhai
- Department of Global Health, Ecology and Emergence of Arthropod-borne Pathogens, Institut Pasteur, Université de Paris, Paris, France
- Université de Paris-Cité, CNRS UMR 2000, Paris, France
- Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement (INRAE) USC 1510, Paris, France
| | - Markus Kleinewietfeld
- VIB Laboratory of Translational Immunomodulation, Hasselt University, Diepenbeek, Belgium
- Department of Immunology, Hasselt University, Diepenbeek, Belgium
- University Multiple Sclerosis Center, Hasselt University, Diepenbeek, Belgium
| | - Tineke Cantaert
- Immunology Unit, Institut Pasteur du Cambodge, Pasteur Network, Phnom Penh, Cambodia
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3
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Harish V, Colón-González FJ, Moreira FRR, Gibb R, Kraemer MUG, Davis M, Reiner RC, Pigott DM, Perkins TA, Weiss DJ, Bogoch II, Vazquez-Prokopec G, Saide PM, Barbosa GL, Sabino EC, Khan K, Faria NR, Hay SI, Correa-Morales F, Chiaravalloti-Neto F, Brady OJ. Human movement and environmental barriers shape the emergence of dengue. Nat Commun 2024; 15:4205. [PMID: 38806460 PMCID: PMC11133396 DOI: 10.1038/s41467-024-48465-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2024] [Accepted: 04/29/2024] [Indexed: 05/30/2024] Open
Abstract
Understanding how emerging infectious diseases spread within and between countries is essential to contain future pandemics. Spread to new areas requires connectivity between one or more sources and a suitable local environment, but how these two factors interact at different stages of disease emergence remains largely unknown. Further, no analytical framework exists to examine their roles. Here we develop a dynamic modelling approach for infectious diseases that explicitly models both connectivity via human movement and environmental suitability interactions. We apply it to better understand recently observed (1995-2019) patterns as well as predict past unobserved (1983-2000) and future (2020-2039) spread of dengue in Mexico and Brazil. We find that these models can accurately reconstruct long-term spread pathways, determine historical origins, and identify specific routes of invasion. We find early dengue invasion is more heavily influenced by environmental factors, resulting in patchy non-contiguous spread, while short and long-distance connectivity becomes more important in later stages. Our results have immediate practical applications for forecasting and containing the spread of dengue and emergence of new serotypes. Given current and future trends in human mobility, climate, and zoonotic spillover, understanding the interplay between connectivity and environmental suitability will be increasingly necessary to contain emerging and re-emerging pathogens.
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Affiliation(s)
- Vinyas Harish
- Temerty Faculty of Medicine, University of Toronto, Toronto, ON, Canada
- Dalla Lana School of Public Health, University of Toronto, Toronto, ON, Canada
- Vector Institute for Artificial Intelligence, Toronto, ON, Canada
| | - Felipe J Colón-González
- Centre for the Mathematical Modelling of Infectious Diseases, London School of Hygiene & Tropical Medicine, London, UK
- Department of Infectious Disease Epidemiology, Faculty of Epidemiology and Population Health, London School of Hygiene & Tropical Medicine, London, UK
- Centre on Climate Change and Planetary Health, London School of Hygiene & Tropical Medicine, London, UK
| | - Filipe R R Moreira
- Medical Research Council Centre for Global Infectious Disease Analysis, Abdul Latif Jameel Institute for Disease and Emergency Analytics and Department of Infectious Disease Epidemiology, School of Public Health, Imperial College London, London, UK
- Departamento de Genética, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Rory Gibb
- Centre for the Mathematical Modelling of Infectious Diseases, London School of Hygiene & Tropical Medicine, London, UK
- Department of Infectious Disease Epidemiology, Faculty of Epidemiology and Population Health, London School of Hygiene & Tropical Medicine, London, UK
- Centre on Climate Change and Planetary Health, London School of Hygiene & Tropical Medicine, London, UK
- Department of Genetics, Evolution and Environment, University College London, London, UK
| | | | | | - Robert C Reiner
- Institute for Health Metrics and Evaluation, University of Washington, Seattle, WA, USA
- Department of Health Metrics Sciences, School of Medicine, University of Washington, Seattle, WA, USA
| | - David M Pigott
- Institute for Health Metrics and Evaluation, University of Washington, Seattle, WA, USA
- Department of Health Metrics Sciences, School of Medicine, University of Washington, Seattle, WA, USA
| | - T Alex Perkins
- Department of Biological Sciences, University of Notre Dame, Notre Dame, IN, USA
- Eck Institute for Global Health, University of Notre Dame, Notre Dame, IN, USA
| | - Daniel J Weiss
- Geospatial Health and Development, Telethon Kids Institute, Nedlands, WA, Australia
- Faculty of Health Sciences, Curtin University, Perth, WA, Australia
| | - Isaac I Bogoch
- Temerty Faculty of Medicine, University of Toronto, Toronto, ON, Canada
- Divisions of General Internal Medicine and Infectious Diseases, Toronto General Hospital, University Health Network, Toronto, ON, Canada
| | | | | | - Gerson L Barbosa
- Pasteur Institute, State Secretary of Health of São Paulo, São Paulo, SP, Brazil
| | - Ester C Sabino
- Institute of Tropical Medicine, Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Kamran Khan
- Temerty Faculty of Medicine, University of Toronto, Toronto, ON, Canada
- Dalla Lana School of Public Health, University of Toronto, Toronto, ON, Canada
- BlueDot, Toronto, ON, Canada
- Division of Infectious Diseases, St. Michael's Hospital, Unity Health Toronto, Toronto, ON, Canada
- Li Ka Shing Knowledge Institute, Unity Health Toronto, Toronto, ON, Canada
| | - Nuno R Faria
- Departamento de Genética, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
- Institute of Tropical Medicine, Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Simon I Hay
- Institute for Health Metrics and Evaluation, University of Washington, Seattle, WA, USA
- Department of Health Metrics Sciences, School of Medicine, University of Washington, Seattle, WA, USA
| | - Fabián Correa-Morales
- Centro Nacional de Programas Preventivos y Control de Enfermedades (CENAPRECE) Secretaria de Salud Mexico, Ciudad de Mexico, Mexico
| | | | - Oliver J Brady
- Centre for the Mathematical Modelling of Infectious Diseases, London School of Hygiene & Tropical Medicine, London, UK.
- Department of Infectious Disease Epidemiology, Faculty of Epidemiology and Population Health, London School of Hygiene & Tropical Medicine, London, UK.
- Centre on Climate Change and Planetary Health, London School of Hygiene & Tropical Medicine, London, UK.
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4
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Cloherty APM, Rader AG, Patel KS, Eisden TJTHD, van Piggelen S, Schreurs RRCE, Ribeiro CMS. Dengue virus exploits autophagy vesicles and secretory pathways to promote transmission by human dendritic cells. Front Immunol 2024; 15:1260439. [PMID: 38863700 PMCID: PMC11165123 DOI: 10.3389/fimmu.2024.1260439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Accepted: 04/19/2024] [Indexed: 06/13/2024] Open
Abstract
Dengue virus (DENV), transmitted by infected mosquitoes, is a major public health concern, with approximately half the world's population at risk for infection. Recent decades have increasing incidence of dengue-associated disease alongside growing frequency of outbreaks. Although promising progress has been made in anti-DENV immunizations, post-infection treatment remains limited to non-specific supportive treatments. Development of antiviral therapeutics is thus required to limit DENV dissemination in humans and to help control the severity of outbreaks. Dendritic cells (DCs) are amongst the first cells to encounter DENV upon injection into the human skin mucosa, and thereafter promote systemic viral dissemination to additional human target cells. Autophagy is a vesicle trafficking pathway involving the formation of cytosolic autophagosomes, and recent reports have highlighted the extensive manipulation of autophagy by flaviviruses, including DENV, for viral replication. However, the temporal profiling and function of autophagy activity in DENV infection and transmission by human primary DCs remains poorly understood. Herein, we demonstrate that mechanisms of autophagosome formation and extracellular vesicle (EV) release have a pro-viral role in DC-mediated DENV transmission. We show that DENV exploits early-stage canonical autophagy to establish infection in primary human DCs. DENV replication enhanced autophagosome formation in primary human DCs, and intrinsically-heightened autophagosome biogenesis correlated with relatively higher rates of DC susceptibility to DENV. Furthermore, our data suggest that viral replication intermediates co-localize with autophagosomes, while productive DENV infection introduces a block at the late degradative stages of autophagy in infected DCs but not in uninfected bystander cells. Notably, we identify for the first time that approximately one-fourth of DC-derived CD9/CD81/CD63+ EVs co-express canonical autophagy marker LC3, and demonstrate that DC-derived EV populations are an alternative, cell-free mechanism by which DCs promote DENV transmission to additional target sites. Taken together, our study highlights intersections between autophagy and secretory pathways during viral infection, and puts forward autophagosome accumulation and viral RNA-laden EVs as host determinants of DC-mediated DENV infection in humans. Host-directed therapeutics targeting autophagy and exocytosis pathways thus have potential to enhance DC-driven resistance to DENV acquisition and thereby limit viral dissemination by initial human target cells following mosquito-to-human transmission of DENV.
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Affiliation(s)
- Alexandra P. M. Cloherty
- Department of Experimental Immunology, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
- Amsterdam Institute for Immunology and Infectious Diseases, Amsterdam, Netherlands
| | - Anusca G. Rader
- Department of Experimental Immunology, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
- Amsterdam Institute for Immunology and Infectious Diseases, Amsterdam, Netherlands
- Amsterdam Gastroenterology Endocrinology Metabolism, Amsterdam, Netherlands
| | - Kharishma S. Patel
- Department of Experimental Immunology, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
- Amsterdam Institute for Immunology and Infectious Diseases, Amsterdam, Netherlands
| | - Tracy-Jane T. H. D. Eisden
- Department of Experimental Immunology, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
- Amsterdam Institute for Immunology and Infectious Diseases, Amsterdam, Netherlands
- Department of Medical Oncology, Cancer Center Amsterdam, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, Netherlands
| | - Sterre van Piggelen
- Department of Experimental Immunology, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
- Amsterdam Institute for Immunology and Infectious Diseases, Amsterdam, Netherlands
| | - Renée R. C. E. Schreurs
- Department of Experimental Immunology, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
- Amsterdam Institute for Immunology and Infectious Diseases, Amsterdam, Netherlands
- Amsterdam Gastroenterology Endocrinology Metabolism, Amsterdam, Netherlands
| | - Carla M. S. Ribeiro
- Department of Experimental Immunology, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
- Amsterdam Institute for Immunology and Infectious Diseases, Amsterdam, Netherlands
- Amsterdam Gastroenterology Endocrinology Metabolism, Amsterdam, Netherlands
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5
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García-García D, Fernández-Martínez B, Bartumeus F, Gómez-Barroso D. Modeling the Regional Distribution of International Travelers in Spain to Estimate Imported Cases of Dengue and Malaria: Statistical Inference and Validation Study. JMIR Public Health Surveill 2024; 10:e51191. [PMID: 38801767 PMCID: PMC11165286 DOI: 10.2196/51191] [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: 07/24/2023] [Revised: 10/18/2023] [Accepted: 03/05/2024] [Indexed: 05/29/2024] Open
Abstract
BACKGROUND Understanding the patterns of disease importation through international travel is paramount for effective public health interventions and global disease surveillance. While global airline network data have been used to assist in outbreak prevention and effective preparedness, accurately estimating how these imported cases disseminate locally in receiving countries remains a challenge. OBJECTIVE This study aimed to describe and understand the regional distribution of imported cases of dengue and malaria upon arrival in Spain via air travel. METHODS We have proposed a method to describe the regional distribution of imported cases of dengue and malaria based on the computation of the "travelers' index" from readily available socioeconomic data. We combined indicators representing the main drivers for international travel, including tourism, economy, and visits to friends and relatives, to measure the relative appeal of each region in the importing country for travelers. We validated the resulting estimates by comparing them with the reported cases of malaria and dengue in Spain from 2015 to 2019. We also assessed which motivation provided more accurate estimates for imported cases of both diseases. RESULTS The estimates provided by the best fitted model showed high correlation with notified cases of malaria (0.94) and dengue (0.87), with economic motivation being the most relevant for imported cases of malaria and visits to friends and relatives being the most relevant for imported cases of dengue. CONCLUSIONS Factual descriptions of the local movement of international travelers may substantially enhance the design of cost-effective prevention policies and control strategies, and essentially contribute to decision-support systems. Our approach contributes in this direction by providing a reliable estimate of the number of imported cases of nonendemic diseases, which could be generalized to other applications. Realistic risk assessments will be obtained by combining this regional predictor with the observed local distribution of vectors.
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Affiliation(s)
- David García-García
- Department of Communicable Diseases, National Centre of Epidemiology, Instituto de Salud Carlos III, Madrid, Spain
- Epidemiology and Public Health Biomedical Network Research Consortium (CIBERESP), Madrid, Spain
| | - Beatriz Fernández-Martínez
- Department of Communicable Diseases, National Centre of Epidemiology, Instituto de Salud Carlos III, Madrid, Spain
- Epidemiology and Public Health Biomedical Network Research Consortium (CIBERESP), Madrid, Spain
| | - Frederic Bartumeus
- Group of Theoretical and Computational Ecology, Centre for Advanced Studies of Blanes, Spanish Research Council, Blanes, Spain
- Ecological and Forestry Applications Research Centre, Barcelona, Spain
- Catalan Institution for Research and Advanced Studies, Barcelona, Spain
| | - Diana Gómez-Barroso
- Department of Communicable Diseases, National Centre of Epidemiology, Instituto de Salud Carlos III, Madrid, Spain
- Epidemiology and Public Health Biomedical Network Research Consortium (CIBERESP), Madrid, Spain
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6
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Pedreañez A, Carrero Y, Vargas R, Hernández-Fonseca JP, Mosquera JA. Role of angiotensin II in cellular entry and replication of dengue virus. Arch Virol 2024; 169:121. [PMID: 38753119 DOI: 10.1007/s00705-024-06040-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Accepted: 02/19/2024] [Indexed: 05/21/2024]
Abstract
Previous studies have demonstrated the relevance of several soluble molecules in the pathogenesis of dengue. In this regard, a possible role for angiotensin II (Ang II) in the pathophysiology of dengue has been suggested by the observation of a blockade of Ang II in patients with dengue, increased expression of molecules related to Ang II production in the plasma of dengue patients, increased expression of circulating cytokines and soluble molecules related to the action of Ang II, and an apparent relationship between DENV, Ang II effects, and miRNAs. In addition, in ex vivo experiments, the blockade of Ang II AT1 receptor and ACE-1 (angiotensin converting enzyme 1), both of which are involved in Ang II production and its function, inhibits infection of macrophages by DENV, suggesting a role of Ang II in viral entry or in intracellular viral replication of the virus. Here, we discuss the possible mechanisms of Ang II in the entry and replication of DENV. Ang II has the functions of increasing the expression of DENV entry receptors, creation of clathrin-coated vesicles, and increasing phagocytosis, all of which are involved in DENV entry. This hormone also modulates the expression of the Rab5 and Rab7 proteins, which are important in the endosomal processing of DENV during viral replication. This review summarizes the data related to the possible involvement of Ang II in the entry of DENV into cells and its replication.
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Affiliation(s)
- Adriana Pedreañez
- Cátedra de Inmunología, Escuela de Bioanálisis, Facultad de Medicina, Universidad del Zulia, Maracaibo, Venezuela
| | - Yenddy Carrero
- Instituto de Investigaciones Clínicas "Dr. Américo Negrette", Facultad de Medicina, Universidad del Zulia, Maracaibo, Venezuela
| | - Renata Vargas
- Instituto de Investigaciones Clínicas "Dr. Américo Negrette", Facultad de Medicina, Universidad del Zulia, Maracaibo, Venezuela
| | - Juan P Hernández-Fonseca
- Instituto de Investigaciones Clínicas "Dr. Américo Negrette", Facultad de Medicina, Universidad del Zulia, Maracaibo, Venezuela
- Servicio de Microscopia Electrónica del Centro Nacional de Biotecnología (CNB- CSIC), Madrid, España
| | - Jesús Alberto Mosquera
- Instituto de Investigaciones Clínicas "Dr. Américo Negrette", Facultad de Medicina, Universidad del Zulia, Maracaibo, Venezuela.
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7
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Martí MM, Castanha PMS, Barratt-Boyes SM. The Dynamic Relationship between Dengue Virus and the Human Cutaneous Innate Immune Response. Viruses 2024; 16:727. [PMID: 38793609 PMCID: PMC11125669 DOI: 10.3390/v16050727] [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: 04/11/2024] [Revised: 04/26/2024] [Accepted: 05/02/2024] [Indexed: 05/26/2024] Open
Abstract
Dengue virus (DENV) is a continuing global threat that puts half of the world's population at risk for infection. This mosquito-transmitted virus is endemic in over 100 countries. When a mosquito takes a bloodmeal, virus is deposited into the epidermal and dermal layers of human skin, infecting a variety of permissive cells, including keratinocytes, Langerhans cells, macrophages, dermal dendritic cells, fibroblasts, and mast cells. In response to infection, the skin deploys an array of defense mechanisms to inhibit viral replication and prevent dissemination. Antimicrobial peptides, pattern recognition receptors, and cytokines induce a signaling cascade to increase transcription and translation of pro-inflammatory and antiviral genes. Paradoxically, this inflammatory environment recruits skin-resident mononuclear cells that become infected and migrate out of the skin, spreading virus throughout the host. The details of the viral-host interactions in the cutaneous microenvironment remain unclear, partly due to the limited body of research focusing on DENV in human skin. This review will summarize the functional role of human skin, the cutaneous innate immune response to DENV, the contribution of the arthropod vector, and the models used to study DENV interactions in the cutaneous environment.
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Affiliation(s)
- Michelle M. Martí
- Department of Infectious Diseases and Microbiology, University of Pittsburgh, Pittsburgh, PA 15260, USA; (M.M.M.); (P.M.S.C.)
| | - Priscila M. S. Castanha
- Department of Infectious Diseases and Microbiology, University of Pittsburgh, Pittsburgh, PA 15260, USA; (M.M.M.); (P.M.S.C.)
- Faculdade de Ciệncias Médicas, Universidade de Pernambuco, Recife 52171-011, Brazil
| | - Simon M. Barratt-Boyes
- Department of Infectious Diseases and Microbiology, University of Pittsburgh, Pittsburgh, PA 15260, USA; (M.M.M.); (P.M.S.C.)
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8
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Joshi G, Das A, Verma G, Guchhait P. Viral infection and host immune response in diabetes. IUBMB Life 2024; 76:242-266. [PMID: 38063433 DOI: 10.1002/iub.2794] [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: 03/17/2023] [Accepted: 11/05/2023] [Indexed: 04/24/2024]
Abstract
Diabetes, a chronic metabolic disorder disrupting blood sugar regulation, has emerged as a prominent silent pandemic. Uncontrolled diabetes predisposes an individual to develop fatal complications like cardiovascular disorders, kidney damage, and neuropathies and aggravates the severity of treatable infections. Escalating cases of Type 1 and Type 2 diabetes correlate with a global upswing in diabetes-linked mortality. As a growing global concern with limited preventive interventions, diabetes necessitates extensive research to mitigate its healthcare burden and assist ailing patients. An altered immune system exacerbated by chronic hyperinflammation heightens the susceptibility of diabetic individuals to microbial infections, including notable viruses like SARS-CoV-2, dengue, and influenza. Given such a scenario, we scrutinized the literature and compiled molecular pathways and signaling cascades related to immune compartments in diabetics that escalate the severity associated with the above-mentioned viral infections in them as compared to healthy individuals. The pathogenesis of these viral infections that trigger diabetes compromises both innate and adaptive immune functions and pre-existing diabetes also leads to heightened disease severity. Lastly, this review succinctly outlines available treatments for diabetics, which may hold promise as preventive or supportive measures to effectively combat these viral infections in the former.
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Affiliation(s)
- Garima Joshi
- Regional Centre for Biotechnology, National Capital Region Biotech Science Cluster, Faridabad, India
| | - Anushka Das
- Regional Centre for Biotechnology, National Capital Region Biotech Science Cluster, Faridabad, India
| | - Garima Verma
- Regional Centre for Biotechnology, National Capital Region Biotech Science Cluster, Faridabad, India
| | - Prasenjit Guchhait
- Regional Centre for Biotechnology, National Capital Region Biotech Science Cluster, Faridabad, India
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9
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Lu HZ, Xie YZ, Gao C, Wang Y, Liu TT, Wu XZ, Dai F, Wang DQ, Deng SQ. Diabetes mellitus as a risk factor for severe dengue fever and West Nile fever: A meta-analysis. PLoS Negl Trop Dis 2024; 18:e0012217. [PMID: 38820529 PMCID: PMC11168630 DOI: 10.1371/journal.pntd.0012217] [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: 12/11/2023] [Revised: 06/12/2024] [Accepted: 05/14/2024] [Indexed: 06/02/2024] Open
Abstract
BACKGROUND Dengue fever (DF) and West Nile fever (WNF) have become endemic worldwide in the last two decades. Studies suggest that individuals with diabetes mellitus (DM) are at a higher risk of developing severe complications from these diseases. Identifying the factors associated with a severe clinical presentation is crucial, as prompt treatment is essential to prevent complications and fatalities. This article aims to summarize and assess the published evidence regarding the link between DM and the risk of severe clinical manifestations in cases of DF and WNF. METHODOLOGY/PRINCIPAL FINDINGS A systematic search was conducted using the PubMed and Web of Science databases. 27 studies (19 on DF, 8 on WNF) involving 342,873 laboratory-confirmed patients were included in the analysis. The analysis showed that a diagnosis of DM was associated with an increased risk for severe clinical presentations of both DF (OR 3.39; 95% CI: 2.46, 4.68) and WNF (OR 2.89; 95% CI: 1.89, 4.41). DM also significantly increased the risk of death from both diseases (DF: OR 1.95; 95% CI: 1.09, 3.52; WNF: OR 1.74; 95% CI: 1.40, 2.17). CONCLUSIONS/SIGNIFICANCE This study provides strong evidence supporting the association between DM and an increased risk of severe clinical manifestations in cases of DF and WNF. Diabetic individuals in DF or WNF endemic areas should be closely monitored when presenting with febrile symptoms due to their higher susceptibility to severe disease. Early detection and appropriate management strategies are crucial in reducing the morbidity and mortality rates associated with DF and WNF in diabetic patients. Tailored care and targeted public health interventions are needed to address this at-risk population. Further research is required to understand the underlying mechanisms and develop effective preventive and therapeutic approaches.
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Affiliation(s)
- Hong-Zheng Lu
- Department of Pathogen Biology, Anhui Province Key Laboratory of Zoonoses, the Key Laboratory of Zoonoses of High Institutions in Anhui, School of Basic Medical Sciences, Anhui Medical University, Hefei, China
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, Anhui China
| | - Yu-Zhuang Xie
- Department of Pathogen Biology, Anhui Province Key Laboratory of Zoonoses, the Key Laboratory of Zoonoses of High Institutions in Anhui, School of Basic Medical Sciences, Anhui Medical University, Hefei, China
| | - Chen Gao
- Department of Pathogen Biology, Anhui Province Key Laboratory of Zoonoses, the Key Laboratory of Zoonoses of High Institutions in Anhui, School of Basic Medical Sciences, Anhui Medical University, Hefei, China
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, Anhui China
| | - Ying Wang
- Department of Tropical Medicine, College of Military Preventive Medicine, Army Medical University, Chongqing, China
| | - Ting-Ting Liu
- Department of Tropical Medicine, College of Military Preventive Medicine, Army Medical University, Chongqing, China
| | - Xing-Zhe Wu
- Department of Endocrinology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Fang Dai
- Department of Endocrinology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Duo-Quan Wang
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention (Chinese Center for Tropical Diseases Research), National Health Commission Key Laboratory of Parasite and Vector Biology; WHO Collaborating Center for Tropical Diseases; National Center for International Research on Tropical Diseases, Shanghai, China
| | - Sheng-Qun Deng
- Department of Pathogen Biology, Anhui Province Key Laboratory of Zoonoses, the Key Laboratory of Zoonoses of High Institutions in Anhui, School of Basic Medical Sciences, Anhui Medical University, Hefei, China
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10
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Padonou GG, Konkon AK, Zoungbédji DM, Salako AS, Sovi A, Oussou O, Sidick A, Ahouandjinou J, Towakinou L, Ossé R, Baba-Moussa L, Akogbéto MC. Detection of DENV-1, DENV-3, and DENV-4 Serotypes in Aedes aegypti and Aedes albopictus, and Epidemic Risk in the Departments of Oueme and Plateau, South-Eastern Benin. Vector Borne Zoonotic Dis 2024. [PMID: 38686519 DOI: 10.1089/vbz.2023.0071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2024] Open
Abstract
Background: This study conducted in the departments of Oueme and Plateau aims to assess the presence of the dengue virus and its different serotypes in Aedes aegypti and Aedes albopictus, as well as the epidemic risk incurred by the populations. Methods: Collections of adult mosquitoes using human landing catches (HLC) were carried out in six communes, three (Porto-Novo, Adjarra, and Avrankou) in the Oueme department and the rest (Ifangni, Kétou, and Pobè) in the Plateau department. Pools of ten Aedes mosquitoes were formed, and stored at -80°C in RNA later. RT-PCR was used to detect dengue virus, and conventional PCR for the different serotypes. Inspection of water containers and collection of Aedes larvae was performed inside and around each house to calculate the stegomyan indices. Results: In the six communes, the dengue virus was present both in Ae. aegypti and Ae. albopictus. Combined data of the two Aedes species at the communes level revealed infection rates ranging from 80.00% (95% CI: 61.43-92.29) to 96.67% (95% CI: 82.78-99.92). In all the communes, the values of stegomyan indices reached the WHO threshold, which indicates the existence of the risk of an arbovirus epidemic. In addition, the infection rates were similar for Ae. aegypti [88.19% (95% CI: 81.27-93.24)] and Ae. albopictus [86.79% (95% CI: 74.66-94.52)]. The three virus serotypes detected in the pools of Aedes were DENV-1, DENV-3, and DENV-4, with a high prevalence for the first two. Conclusion: This study revealed that three serotypes (DENV-1, DENV-3, and DENV-4) of dengue virus circulate in Ae. aegypti and Ae. albopictus in the departments of Oueme and Plateau. Moreover, the risk of transmission of arboviruses was globally high and variable from commune to commune. This information is essential for informed decision-making in the preventive control of the disease.
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Affiliation(s)
- Germain Gil Padonou
- Ministère de la Santé, Centre de Recherche Entomologique de Cotonou, Cotonou, Benin
- Laboratory of Biology and Molecular Typing in Microbiology, Faculty of Science and Technology, University of Abomey-Calavi, Abomey-Calavi, Benin
| | - Alphonse Keller Konkon
- Ministère de la Santé, Centre de Recherche Entomologique de Cotonou, Cotonou, Benin
- Laboratory of Biology and Molecular Typing in Microbiology, Faculty of Science and Technology, University of Abomey-Calavi, Abomey-Calavi, Benin
| | - David Mahouton Zoungbédji
- Ministère de la Santé, Centre de Recherche Entomologique de Cotonou, Cotonou, Benin
- Laboratory of Biology and Molecular Typing in Microbiology, Faculty of Science and Technology, University of Abomey-Calavi, Abomey-Calavi, Benin
| | - Albert Sourou Salako
- Ministère de la Santé, Centre de Recherche Entomologique de Cotonou, Cotonou, Benin
| | - Arthur Sovi
- Ministère de la Santé, Centre de Recherche Entomologique de Cotonou, Cotonou, Benin
- Faculty of Agronomy, Université de Parakou, Parakou, Benin
- Faculty of Infectious and Tropical Diseases, Disease Control Department, The London School of Hygiene & Tropical Medicine, London, United Kingdom
| | - Olivier Oussou
- Ministère de la Santé, Centre de Recherche Entomologique de Cotonou, Cotonou, Benin
| | - Aboubakar Sidick
- Ministère de la Santé, Centre de Recherche Entomologique de Cotonou, Cotonou, Benin
| | - Juvénal Ahouandjinou
- Ministère de la Santé, Centre de Recherche Entomologique de Cotonou, Cotonou, Benin
- Laboratory of Biology and Molecular Typing in Microbiology, Faculty of Science and Technology, University of Abomey-Calavi, Abomey-Calavi, Benin
| | - Linda Towakinou
- Ministère de la Santé, Centre de Recherche Entomologique de Cotonou, Cotonou, Benin
| | - Razaki Ossé
- Ministère de la Santé, Centre de Recherche Entomologique de Cotonou, Cotonou, Benin
| | - Lamine Baba-Moussa
- Laboratory of Biology and Molecular Typing in Microbiology, Faculty of Science and Technology, University of Abomey-Calavi, Abomey-Calavi, Benin
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11
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Hollingsworth BD, Cho C, Vella M, Roh H, Sass J, Lloyd AL, Brown ZS. Economic optimization of Wolbachia-infected Aedes aegypti release to prevent dengue. PEST MANAGEMENT SCIENCE 2024. [PMID: 38507220 DOI: 10.1002/ps.8086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 02/29/2024] [Accepted: 03/20/2024] [Indexed: 03/22/2024]
Abstract
BACKGROUND Dengue virus, primarily transmitted by the Aedes aegypti mosquito, is a major public health concern affecting ≈3.83 billion people worldwide. Recent releases of Wolbachia-transinfected Ae. aegypti in several cities worldwide have shown that it can reduce dengue transmission. However, these releases are costly, and, to date, no framework has been proposed for determining economically optimal release strategies that account for both costs associated with disease risk and releases. RESULTS We present a flexible stochastic dynamic programming framework for determining optimal release schedules for Wolbachia-transinfected mosquitoes that balances the cost of dengue infection with the costs of rearing and releasing transinfected mosquitoes. Using an ordinary differential equation model of Wolbachia and dengue in a hypothetical city loosely describing areas at risk of new dengue epidemics, we determined that an all-or-nothing release strategy that quickly brings Wolbachia to fixation is often the optimal solution. Based on this, we examined the optimal facility size, finding that it was inelastic with respect to the mosquito population size, with a 100% increase in population size resulting in a 50-67% increase in optimal facility size. Furthermore, we found that these results are robust to mosquito life-history parameters and are mostly determined by the mosquito population size and the fitness costs associated with Wolbachia. CONCLUSIONS These results reinforce that Wolbachia-transinfected mosquitoes can reduce the cost of dengue epidemics. Furthermore, they emphasize the importance of determining the size of the target population and fitness costs associated with Wolbachia before releases occur. © 2024 The Authors. Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.
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Affiliation(s)
- Brandon D Hollingsworth
- Department of Entomology, Cornell University, Ithaca, NY, USA
- Biomathematics Graduate Program and Department of Mathematics, North Carolina State University, Raleigh, NC, USA
| | - Chanheung Cho
- Department of Agricultural and Resource Economics, North Carolina State University, Raleigh, NC, USA
| | - Michael Vella
- Biomathematics Graduate Program and Department of Mathematics, North Carolina State University, Raleigh, NC, USA
| | - Hyeongyul Roh
- Department of Agricultural and Resource Economics, North Carolina State University, Raleigh, NC, USA
| | - Julian Sass
- Biomathematics Graduate Program and Department of Mathematics, North Carolina State University, Raleigh, NC, USA
| | - Alun L Lloyd
- Biomathematics Graduate Program and Department of Mathematics, North Carolina State University, Raleigh, NC, USA
| | - Zachary S Brown
- Department of Agricultural and Resource Economics, North Carolina State University, Raleigh, NC, USA
- Genetic Engineering and Society Center, North Carolina State University, Raleigh, NC, USA
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12
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Sohail A, Anders KL, McGuinness SL, Leder K. The epidemiology of imported and locally acquired dengue in Australia, 2012-2022. J Travel Med 2024; 31:taae014. [PMID: 38243558 PMCID: PMC10911064 DOI: 10.1093/jtm/taae014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 01/15/2024] [Accepted: 01/16/2024] [Indexed: 01/21/2024]
Abstract
BACKGROUND Dengue is the most important arboviral disease globally and poses ongoing challenges for control including in non-endemic countries with competent mosquito vectors at risk of local transmission through imported cases. We examined recent epidemiological trends in imported and locally acquired dengue in Australia, where the Wolbachia mosquito population replacement method was implemented throughout dengue-prone areas of northern Queensland between 2011 and 2019. METHODS We analysed dengue cases reported to the Australian National Notifiable Disease Surveillance System between January 2012 and December 2022, and Australian traveller movement data. RESULTS Between 2012 and 2022, 13 343 dengue cases were reported in Australia (median 1466 annual cases); 12 568 cases (94.2%) were imported, 584 (4.4%) were locally acquired and 191 (1.4%) had no origin recorded. Locally acquired cases decreased from a peak in 2013 (n = 236) to zero in 2021-22. Annual incidence of imported dengue ranged from 8.29/100 000 (n = 917 cases) to 22.10/100 000 (n = 2203) annual traveller movements between 2012 and 2019, decreased in 2020 (6.74/100 000 traveller movements; n = 191) and 2021 (3.32/100 000 traveller movements; n = 10) during COVID-19-related border closures, then rose to 34.79/100 000 traveller movements (n = 504) in 2022. Imported cases were primarily acquired in Southeast Asia (n = 9323; 74%), Southern and Central Asia (n = 1555; 12%) and Oceania (n = 1341; 11%). Indonesia (n = 5778; 46%) and Thailand (n = 1483; 12%) were top acquisition countries. DENV-2 (n = 2147; 42%) and DENV-1 (n = 1526; 30%) were predominant serotypes. CONCLUSION Our analysis highlights Australia's successful control of locally acquired dengue with Wolbachia. Imported dengue trends reflect both Australian travel destinations and patterns and local epidemiology in endemic countries.
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Affiliation(s)
- Asma Sohail
- School of Public Health and Preventive Medicine, Monash University, 553 St Kilda Road, Melbourne, Victoria 3004, Australia
- Infectious Diseases Department, Grampians Health Service, 1 Drummond Street North, Ballarat, Victoria 3350, Australia
| | - Katherine L Anders
- School of Public Health and Preventive Medicine, Monash University, 553 St Kilda Road, Melbourne, Victoria 3004, Australia
- World Mosquito Program, Monash University, 12 Innovation Walk, Clayton, Victoria 3800, Australia
| | - Sarah L McGuinness
- School of Public Health and Preventive Medicine, Monash University, 553 St Kilda Road, Melbourne, Victoria 3004, Australia
- Infectious Diseases Department, Alfred Health, 55 Commercial Road, Melbourne, Victoria 3004, Australia
| | - Karin Leder
- School of Public Health and Preventive Medicine, Monash University, 553 St Kilda Road, Melbourne, Victoria 3004, Australia
- Victorian Infectious Diseases Service, Melbourne Health, 300 Grattan Street, Parkville, Victoria 3050, Australia
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13
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Prestes-Carneiro LE, Barbosa Souza A, Belussi GL, Grande GHD, Bertacco EAM, Vieira AG, Flores EF. Dengue outbreaks in a city with recent transmission in São Paulo state, Brazil. INTERNATIONAL JOURNAL OF ENVIRONMENTAL HEALTH RESEARCH 2024; 34:1370-1383. [PMID: 37036947 DOI: 10.1080/09603123.2023.2199972] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Accepted: 03/31/2023] [Indexed: 06/19/2023]
Abstract
We investigated the distribution of dengue cases, solid waste deposits (SWDs), forest fragments, water drainage, population income, and the possible association with dengue outbreaks in Presidente Prudente, São Paulo, Brazil. An urban setting with recent transmission. Data were obtained from public agencies. Kernel density maps of the variables were constructed. From 2015 to 2021, 33026 cases of dengue were reported; the incidence and mortality rate were highest in 2016. The number of cases decreased during the COVID-19 pandemic (2020 and 2021) compared with 2019, but alarming rates were registered in 2022. In 2015, 56 points of SWDs were identified, with an increase of 1.6-fold in 2020 and 2021. Multivariate analysis showed a positive correlation between the density of dengue cases and SWDs with the highest correlation (0.70) in 2020. Identifying these areas could guide public health authorities in surveillance measures and improvements in health care infrastructure.
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Affiliation(s)
- Luiz Euribel Prestes-Carneiro
- Department of Emergency, Oeste Paulista University/Regional Hospital of Presidente Prudente, Presidente Prudente, São Paulo, Brazil
| | - Alana Barbosa Souza
- Department of Emergency, Oeste Paulista University/Regional Hospital of Presidente Prudente, Presidente Prudente, São Paulo, Brazil
| | - Gabriella Lima Belussi
- Department of Emergency, Oeste Paulista University/Regional Hospital of Presidente Prudente, Presidente Prudente, São Paulo, Brazil
| | | | | | - André Gonçalves Vieira
- Municipal Epidemiological Surveillance of Presidente Prudente, Presidente Prudente, São Paulo, Brazil
| | - Edilson Ferreira Flores
- Statistics Department, School of Sciences and Technology, São Paulo State University, Presidente Prudente, Brazil
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14
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Dieng I, Talla C, Barry MA, Gaye A, Balde D, Ndiaye M, Kane M, Sagne SN, Diagne MM, Diop B, Diallo B, Sall AA, Faye O, Sow A, Fall G, Loucoubar C, Faye O. The Spatiotemporal Distribution and Molecular Characterization of Circulating Dengue Virus Serotypes/Genotypes in Senegal from 2019 to 2023. Trop Med Infect Dis 2024; 9:32. [PMID: 38393121 PMCID: PMC10891755 DOI: 10.3390/tropicalmed9020032] [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: 01/04/2024] [Revised: 01/09/2024] [Accepted: 01/18/2024] [Indexed: 02/25/2024] Open
Abstract
Dengue virus is becoming a major public health threat worldwide, principally in Africa. From 2016 to 2020, 23 outbreaks were reported in Africa, principally in West Africa. In Senegal, dengue outbreaks have been reported yearly since 2017. Data about the circulating serotypes and their spatial and temporal distribution were limited to outbreaks that occurred between 2017 and 2018. Herein, we describe up-to-date molecular surveillance of circulating DENV serotypes in Senegal between 2019 to 2023 and their temporal and spatial distribution around the country. For this purpose, suspected DENV-positive samples were collected and subjected to dengue detection and serotyping using RT-qPCR methods. Positive samples were used for temporal and spatial mapping. A subset of DENV+ samples were then sequenced and subjected to phylogenetic analysis. Results show a co-circulation of three DENV serotypes with an overall predominance of DENV-3. In terms of abundance, DENV-3 is followed by DENV-1, with scarce cases of DENV-2 from February 2019 to February 2022. Interestingly, data show the extinction of both serotype 1 and serotype 2 and the only circulation of DENV-3 from March 2022 to February 2023. At the genotype level, the analysis shows that sequenced strains belong to same genotype as previously described: Senegalese DENV-1 strains belong to genotype V, DENV-2 strains to the cosmopolitan genotype, and DENV-3 strains to Genotype III. Interestingly, newly obtained DENV 1-3 sequences clustered in different clades within genotypes. This co-circulation of strains belonging to different clades could have an effect on virus epidemiology and transmission dynamics. Overall, our results highlight DENV serotype replacement by DENV-3, accompanied by a wider geographic distribution, in Senegal. These results highlight the importance of virus genomic surveillance and call for further viral fitness studies using both in vitro and in vivo models, as well as in-depth phylogeographic studies to uncover the virus dispersal patterns across the country.
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Affiliation(s)
- Idrissa Dieng
- Arboviruses and Haemorrhagic Fever Viruses Unit, Virology Department, Institut Pasteur de Dakar, Dakar 220, Senegal
| | - Cheikh Talla
- Epidemiology, Clinical Research and Data Science Department, Institut Pasteur de Dakar, Dakar 220, Senegal
| | - Mamadou Aliou Barry
- Epidemiology, Clinical Research and Data Science Department, Institut Pasteur de Dakar, Dakar 220, Senegal
| | - Aboubacry Gaye
- Epidemiology, Clinical Research and Data Science Department, Institut Pasteur de Dakar, Dakar 220, Senegal
| | - Diamilatou Balde
- Arboviruses and Haemorrhagic Fever Viruses Unit, Virology Department, Institut Pasteur de Dakar, Dakar 220, Senegal
| | - Mignane Ndiaye
- Arboviruses and Haemorrhagic Fever Viruses Unit, Virology Department, Institut Pasteur de Dakar, Dakar 220, Senegal
| | - Mouhamed Kane
- Arboviruses and Haemorrhagic Fever Viruses Unit, Virology Department, Institut Pasteur de Dakar, Dakar 220, Senegal
| | - Samba Niang Sagne
- Epidemiology, Clinical Research and Data Science Department, Institut Pasteur de Dakar, Dakar 220, Senegal
| | - Moussa Moise Diagne
- Arboviruses and Haemorrhagic Fever Viruses Unit, Virology Department, Institut Pasteur de Dakar, Dakar 220, Senegal
| | - Boly Diop
- Direction of Prevention, Ministry of Health, Dakar 220, Senegal
| | - Boubacar Diallo
- Department of Public Health, Institut Pasteur de Dakar, Dakar 220, Senegal
| | - Amadou Alpha Sall
- Arboviruses and Haemorrhagic Fever Viruses Unit, Virology Department, Institut Pasteur de Dakar, Dakar 220, Senegal
| | - Ousmane Faye
- Arboviruses and Haemorrhagic Fever Viruses Unit, Virology Department, Institut Pasteur de Dakar, Dakar 220, Senegal
| | - Abdourahmane Sow
- Department of Public Health, Institut Pasteur de Dakar, Dakar 220, Senegal
| | - Gamou Fall
- Arboviruses and Haemorrhagic Fever Viruses Unit, Virology Department, Institut Pasteur de Dakar, Dakar 220, Senegal
| | - Cheikh Loucoubar
- Epidemiology, Clinical Research and Data Science Department, Institut Pasteur de Dakar, Dakar 220, Senegal
| | - Oumar Faye
- Arboviruses and Haemorrhagic Fever Viruses Unit, Virology Department, Institut Pasteur de Dakar, Dakar 220, Senegal
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Stanley SM, Khera HK, Chandrasingh S, George CE, Mishra RK. A comprehensive review of dengue with a focus on emerging solutions for precision and timely detection. Int J Biol Macromol 2024; 254:127613. [PMID: 37875186 DOI: 10.1016/j.ijbiomac.2023.127613] [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: 07/31/2023] [Revised: 10/19/2023] [Accepted: 10/20/2023] [Indexed: 10/26/2023]
Abstract
Dengue is a global health problem, caused by the dengue virus (DENV), which belongs to the Flaviviridae family of viruses. The transmission of DENV occurs through vectors, Ae. aegypti and Ae. Albopictus mosquitoes, to the human host, classifying it as a vector-borne disease. The disease incidence is increasing at an alarming rate and needs to be tackled to reduce the morbidity and mortality caused by the disease. Environmental and clinical surveillance, detection of the virus, and diagnostics are critical tools to address this issue. In this comprehensive review, we explore various diagnostic techniques and the associated challenges within the context of dengue. While we briefly touch upon dengue's epidemiology, serotypes, and pathogenesis, our primary emphasis remains on diagnostics. We delve into the intricacies of these diagnostic methods, considering both the challenges they entail and the potential they hold in terms of accuracy and accessibility. It's important to note that the review does not extensively cover clinical aspects or regional variations of the disease.
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Affiliation(s)
- Swetha Mariam Stanley
- Tata Institute for Genetics and Society, Bangalore Life Science Cluster (BLiSC), inStem Building, NCBS Campus, GKVK Post, Bellary Road, Bengaluru, India
| | - Harvinder Kour Khera
- Tata Institute for Genetics and Society, Bangalore Life Science Cluster (BLiSC), inStem Building, NCBS Campus, GKVK Post, Bellary Road, Bengaluru, India.
| | | | | | - Rakesh K Mishra
- Tata Institute for Genetics and Society, Bangalore Life Science Cluster (BLiSC), inStem Building, NCBS Campus, GKVK Post, Bellary Road, Bengaluru, India
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Katzelnick LC, Quentin E, Colston S, Ha TA, Andrade P, Eisenberg JNS, Ponce P, Coloma J, Cevallos V. Increasing transmission of dengue virus across ecologically diverse regions of Ecuador and associated risk factors. PLoS Negl Trop Dis 2024; 18:e0011408. [PMID: 38295108 PMCID: PMC10861087 DOI: 10.1371/journal.pntd.0011408] [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: 05/24/2023] [Revised: 02/12/2024] [Accepted: 01/15/2024] [Indexed: 02/02/2024] Open
Abstract
The distribution and intensity of viral diseases transmitted by Aedes aegypti mosquitoes, including dengue, have rapidly increased over the last century. Here, we study dengue virus (DENV) transmission across the ecologically and demographically distinct regions or Ecuador. We analyzed province-level age-stratified dengue incidence data from 2000-2019 using catalytic models to estimate the force of infection of DENV over eight decades. We found that provinces established endemic DENV transmission at different time periods. Coastal provinces with the largest and most connected cities had the earliest and highest increase in DENV transmission, starting around 1980 and continuing to the present. In contrast, remote and rural areas with reduced access, like the northern coast and the Amazon regions, experienced a rise in DENV transmission and endemicity only in the last 10 to 20 years. The newly introduced chikungunya and Zika viruses have age-specific distributions of hospital-seeking cases consistent with recent emergence across all provinces. To evaluate factors associated with geographic differences in DENV transmission potential, we modeled DENV vector risk using 11,693 Aedes aegypti presence points to the resolution of 1 hectare. In total, 56% of the population of Ecuador, including in provinces identified as having increasing DENV transmission in our models, live in areas with high risk of Aedes aegypti, with population size, trash collection, elevation, and access to water as important determinants. Our investigation serves as a case study of the changes driving the expansion of DENV and other arboviruses globally and suggest that control efforts should be expanded to semi-urban and rural areas and to historically isolated regions to counteract increasing dengue outbreaks.
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Affiliation(s)
- Leah C. Katzelnick
- Viral Epidemiology and Immunity Unit, Laboratory of Infectious Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, United States of America
| | - Emmanuelle Quentin
- Centro de Investigación en Salud Pública y Epidemiología Clínica (CISPEC), Facultad de Ciencias de la Salud Eugenio Espejo, Universidad UTE, Quito, Ecuador
| | - Savannah Colston
- Department of Epidemiology, School of Public Health, University of Michigan, Ann Arbor, Michigan, United States of America
| | - Thien-An Ha
- Division of Infectious Diseases and Vaccinology, School of Public Health, University of California, Berkeley, Berkeley, California, United States of America
| | - Paulina Andrade
- Division of Infectious Diseases and Vaccinology, School of Public Health, University of California, Berkeley, Berkeley, California, United States of America
| | - Joseph N. S. Eisenberg
- Department of Epidemiology, School of Public Health, University of Michigan, Ann Arbor, Michigan, United States of America
| | - Patricio Ponce
- Centro de Investigación en Enfermedades Infeciosas y Vectoriales (CIREV), Instituto Nacional de Investigación en Salud Pública (INSPI), Quito, Ecuador
| | - Josefina Coloma
- Division of Infectious Diseases and Vaccinology, School of Public Health, University of California, Berkeley, Berkeley, California, United States of America
| | - Varsovia Cevallos
- Centro de Investigación en Enfermedades Infeciosas y Vectoriales (CIREV), Instituto Nacional de Investigación en Salud Pública (INSPI), Quito, Ecuador
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Wong NS, Lau LHW, Chan DPC, Lee CK, Lee SS. Low level of dengue infection and transmission risk in Hong Kong: an integrated analysis of temporal seroprevalence results and corresponding meteorological data. INTERNATIONAL JOURNAL OF ENVIRONMENTAL HEALTH RESEARCH 2024; 34:328-339. [PMID: 36417666 DOI: 10.1080/09603123.2022.2149709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Accepted: 11/15/2022] [Indexed: 06/16/2023]
Abstract
Hong Kong is an Asia-Pacific City with low incidence but periodic local outbreaks of dengue. A mixed-method assessment of the risk of expansion of dengue endemicity in such setting was conducted. Archived blood samples of healthy adult blood donors were tested for anti-dengue virus IgG at 2 time-points of 2014 and 2018/2019. Data on the monthly notified dengue cases, meteorological and vector (ovitrap index) variables were collected. The dengue virus (DENV) IgG seroprevalence of healthy adults in 2014 was 2.2% (95%C.I. = 1.8-2.8%, n = 3827) whereas that in 2018/2019 was 1.7% (95%C.I. = 1.2-2.3%, n = 2320). Serotyping on 42 sera in 2018/2019 showed that 22 (52.4%) were DENV-2. In 2002-2019, importation accounted for 95.3% of all reported cases. By wavelet analysis, local cases were in weak or no association with meteorological and vector variables. Without strong association between local cases and meteorological/vector variables, there was no evidence of increasing level of dengue infection in Hong Kong.
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Affiliation(s)
- Ngai Sze Wong
- Stanley Ho Centre for Emerging Infectious Diseases, The Chinese University of Hong Kong, Shatin, Hong Kong, China
- Jockey Club School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong, China
| | - Leonia Hiu Wan Lau
- Jockey Club School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong, China
| | - Denise Pui Chung Chan
- Stanley Ho Centre for Emerging Infectious Diseases, The Chinese University of Hong Kong, Shatin, Hong Kong, China
| | - Cheuk Kwong Lee
- Hong Kong Red Cross Blood Transfusion Service, Hong Kong, China
| | - Shui Shan Lee
- Stanley Ho Centre for Emerging Infectious Diseases, The Chinese University of Hong Kong, Shatin, Hong Kong, China
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Côrtes N, Lira A, Prates-Syed W, Dinis Silva J, Vuitika L, Cabral-Miranda W, Durães-Carvalho R, Balan A, Cabral-Marques O, Cabral-Miranda G. Integrated control strategies for dengue, Zika, and Chikungunya virus infections. Front Immunol 2023; 14:1281667. [PMID: 38196945 PMCID: PMC10775689 DOI: 10.3389/fimmu.2023.1281667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Accepted: 11/24/2023] [Indexed: 01/11/2024] Open
Abstract
Arboviruses are a major threat to public health in tropical regions, encompassing over 534 distinct species, with 134 capable of causing diseases in humans. These viruses are transmitted through arthropod vectors that cause symptoms such as fever, headache, joint pains, and rash, in addition to more serious cases that can lead to death. Among the arboviruses, dengue virus stands out as the most prevalent, annually affecting approximately 16.2 million individuals solely in the Americas. Furthermore, the re-emergence of the Zika virus and the recurrent outbreaks of chikungunya in Africa, Asia, Europe, and the Americas, with one million cases reported annually, underscore the urgency of addressing this public health challenge. In this manuscript we discuss the epidemiology, viral structure, pathogenicity and integrated control strategies to combat arboviruses, and the most used tools, such as vaccines, monoclonal antibodies, treatment, etc., in addition to presenting future perspectives for the control of arboviruses. Currently, specific medications for treating arbovirus infections are lacking, and symptom management remains the primary approach. However, promising advancements have been made in certain treatments, such as Chloroquine, Niclosamide, and Isatin derivatives, which have demonstrated notable antiviral properties against these arboviruses in vitro and in vivo experiments. Additionally, various strategies within vector control approaches have shown significant promise in reducing arbovirus transmission rates. These encompass public education initiatives, targeted insecticide applications, and innovative approaches like manipulating mosquito bacterial symbionts, such as Wolbachia. In conclusion, combatting the global threat of arbovirus diseases needs a comprehensive approach integrating antiviral research, vaccination, and vector control. The continued efforts of research communities, alongside collaborative partnerships with public health authorities, are imperative to effectively address and mitigate the impact of these arboviral infections on public health worldwide.
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Affiliation(s)
- Nelson Côrtes
- Department of Immunology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
- The Interunits Graduate Program in Biotechnology of the University of São Paulo, the Butantan Institute and the Technological Research Institute of the State of São Paulo, São Paulo, Brazil
| | - Aline Lira
- Department of Immunology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
- The Interunits Graduate Program in Biotechnology of the University of São Paulo, the Butantan Institute and the Technological Research Institute of the State of São Paulo, São Paulo, Brazil
| | - Wasim Prates-Syed
- Department of Immunology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
- The Interunits Graduate Program in Biotechnology of the University of São Paulo, the Butantan Institute and the Technological Research Institute of the State of São Paulo, São Paulo, Brazil
| | - Jaqueline Dinis Silva
- Department of Immunology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
- The Graduate Program in Pathophysiology and Toxicology, Department of Clinical and Toxicological Analyses, School of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil
| | - Larissa Vuitika
- Department of Immunology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | | | - Ricardo Durães-Carvalho
- São Paulo School of Medicine, Department of Microbiology, Immunology and Parasitology, Federal University of São Paulo, São Paulo, Brazil
| | - Andrea Balan
- The Interunits Graduate Program in Biotechnology of the University of São Paulo, the Butantan Institute and the Technological Research Institute of the State of São Paulo, São Paulo, Brazil
- Applied Structural Biology Laboratory, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Otavio Cabral-Marques
- Department of Immunology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
- The Graduate Program in Pathophysiology and Toxicology, Department of Clinical and Toxicological Analyses, School of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil
- Department of Medicine, Division of Molecular Medicine, University of São Paulo School of Medicine, São Paulo, Brazil
| | - Gustavo Cabral-Miranda
- Department of Immunology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
- The Interunits Graduate Program in Biotechnology of the University of São Paulo, the Butantan Institute and the Technological Research Institute of the State of São Paulo, São Paulo, Brazil
- The Graduate Program in Pathophysiology and Toxicology, Department of Clinical and Toxicological Analyses, School of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil
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Zatta M, Brichler S, Vindrios W, Melica G, Gallien S. Autochthonous Dengue Outbreak, Paris Region, France, September-October 2023. Emerg Infect Dis 2023; 29:2538-2540. [PMID: 37967048 PMCID: PMC10683815 DOI: 10.3201/eid2912.231472] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2023] Open
Abstract
We describe clinical and laboratory findings of 3 autochthonous cases of dengue in the Paris Region, France, during September-October 2023. Increasing trends in cases, global warming, and growth of international travel mean that such infections likely will increase during warm seasons in France, requiring stronger arbovirus surveillance networks.
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Affiliation(s)
| | - Ségolène Brichler
- Henri Mondor University Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France (M. Zatta, W. Vindrios, G. Melica, S. Gallien)
- Avicenne University Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France (S. Brichler)
| | - William Vindrios
- Henri Mondor University Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France (M. Zatta, W. Vindrios, G. Melica, S. Gallien)
- Avicenne University Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France (S. Brichler)
| | - Giovanna Melica
- Henri Mondor University Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France (M. Zatta, W. Vindrios, G. Melica, S. Gallien)
- Avicenne University Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France (S. Brichler)
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20
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Liu Y, Guan W, Liu H. Subgenomic Flaviviral RNAs of Dengue Viruses. Viruses 2023; 15:2306. [PMID: 38140548 PMCID: PMC10747610 DOI: 10.3390/v15122306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 11/15/2023] [Accepted: 11/22/2023] [Indexed: 12/24/2023] Open
Abstract
Subgenomic flaviviral RNAs (sfRNAs) are produced during flavivirus infections in both arthropod and vertebrate cells. They are undegraded products originating from the viral 3' untranslated region (3' UTR), a result of the action of the host 5'-3' exoribonuclease, Xrn1, when it encounters specific RNA structures known as Xrn1-resistant RNAs (xrRNAs) within the viral 3' UTR. Dengue viruses generate three to four distinct species of sfRNAs through the presence of two xrRNAs and two dumbbell structures (DBs). The tertiary structures of xrRNAs have been characterized to form a ringlike structure around the 5' end of the viral RNA, effectively inhibiting the activity of Xrn1. The most important role of DENV sfRNAs is to inhibit host antiviral responses by interacting with viral and host proteins, thereby influencing viral pathogenicity, replicative fitness, epidemiological fitness, and transmission. In this review, we aimed to summarize the biogenesis, structures, and functions of DENV sfRNAs, exploring their implications for viral interference.
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Affiliation(s)
- Yi Liu
- Hubei Jiangxia Laboratory, Wuhan 430200, China
| | - Wuxiang Guan
- Hubei Jiangxia Laboratory, Wuhan 430200, China
- Center for Emerging Infectious Diseases, Wuhan Institute of Virology, Center for Biosafety Mega-Science, Chinese Academy of Sciences, Wuhan 430207, China
| | - Haibin Liu
- Hubei Jiangxia Laboratory, Wuhan 430200, China
- Center for Emerging Infectious Diseases, Wuhan Institute of Virology, Center for Biosafety Mega-Science, Chinese Academy of Sciences, Wuhan 430207, China
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21
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Gularte JS, Sacchetto L, Demoliner M, Girardi V, da Silva MS, Filippi M, Pereira VMDAG, Hansen AW, da Silva LL, Fleck JD, de Almeida PR, Nogueira ML, Spilki FR. DENV-1 genotype V linked to the 2022 dengue epidemic in Southern Brazil. J Clin Virol 2023; 168:105599. [PMID: 37751628 DOI: 10.1016/j.jcv.2023.105599] [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: 02/13/2023] [Revised: 08/31/2023] [Accepted: 09/20/2023] [Indexed: 09/28/2023]
Abstract
Even though Brazil is a country where the dengue virus (DENV) is endemic, until recently, Southern states did not have significant viral circulation, such as Rio Grande do Sul (RS), and some municipalities were even considered dengue-free. During 2022, these places have shown a sharp increase in the incidence of the disease, apparently following a worldwide growth pattern. Therefore, in this study, we monitor and characterize the genetic diversity of DENV circulating in southern Brazil through next-generation sequencing during an outbreak in 2022. We generated 70 DENV-1 genome sequences, all characterized as genotype V, divided into two clade clusters in the L1 lineage. Furthermore, unique mutations have been described in each clade of L1 lineage. Our results are essential in managing outbreaks since these data provide important information during the emergence of DENV circulation in RS. Since the south of Brazil has a lower viral circulation when compared to other Brazilian states, RS still lacks data that can help in understanding the transmission, dissemination, and evolution of the dengue virus. Hence, genomic surveillance efforts are essential to increase the accuracy of preventive actions and to control viral dissemination.
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Affiliation(s)
- Juliana Schons Gularte
- Universidade Feevale, Laboratório de Microbiologia Molecular, Rodovia ERS-239, n° 2755, Vila Nova, CEP 93525-075, Novo Hamburgo, RS, Brazil.
| | - Lívia Sacchetto
- Faculdade de Medicina de São José do Rio Preto, Departamento de Doenças Dermatológicas, Infecciosas e Parasitárias, Laboratório de Pesquisas em Virologia. Avenida Brigadeiro Faria Lima, 5416, Vila São José, CEP 15090000, São José do Rio Preto, SP, Brazil
| | - Meriane Demoliner
- Universidade Feevale, Laboratório de Microbiologia Molecular, Rodovia ERS-239, n° 2755, Vila Nova, CEP 93525-075, Novo Hamburgo, RS, Brazil
| | - Viviane Girardi
- Universidade Feevale, Laboratório de Microbiologia Molecular, Rodovia ERS-239, n° 2755, Vila Nova, CEP 93525-075, Novo Hamburgo, RS, Brazil
| | - Mariana Soares da Silva
- Universidade Feevale, Laboratório de Microbiologia Molecular, Rodovia ERS-239, n° 2755, Vila Nova, CEP 93525-075, Novo Hamburgo, RS, Brazil
| | - Micheli Filippi
- Universidade Feevale, Laboratório de Microbiologia Molecular, Rodovia ERS-239, n° 2755, Vila Nova, CEP 93525-075, Novo Hamburgo, RS, Brazil
| | | | - Alana Witt Hansen
- Universidade Feevale, Laboratório de Microbiologia Molecular, Rodovia ERS-239, n° 2755, Vila Nova, CEP 93525-075, Novo Hamburgo, RS, Brazil
| | | | - Juliane Deise Fleck
- Universidade Feevale, Laboratório de Microbiologia Molecular, Rodovia ERS-239, n° 2755, Vila Nova, CEP 93525-075, Novo Hamburgo, RS, Brazil
| | - Paula Rodrigues de Almeida
- Universidade Feevale, Laboratório de Microbiologia Molecular, Rodovia ERS-239, n° 2755, Vila Nova, CEP 93525-075, Novo Hamburgo, RS, Brazil
| | - Maurício Lacerda Nogueira
- Faculdade de Medicina de São José do Rio Preto, Departamento de Doenças Dermatológicas, Infecciosas e Parasitárias, Laboratório de Pesquisas em Virologia. Avenida Brigadeiro Faria Lima, 5416, Vila São José, CEP 15090000, São José do Rio Preto, SP, Brazil; Department of Pathology, The University of Texas Medical Branch, Galveston, TX, United States of America
| | - Fernando Rosado Spilki
- Universidade Feevale, Laboratório de Microbiologia Molecular, Rodovia ERS-239, n° 2755, Vila Nova, CEP 93525-075, Novo Hamburgo, RS, Brazil
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22
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de Souza UJB, Macedo YDSM, dos Santos RN, Cardoso FDP, Galvão JD, Gabev EE, Franco AC, Roehe PM, Spilki FR, Campos FS. Circulation of Dengue Virus Serotype 1 Genotype V and Dengue Virus Serotype 2 Genotype III in Tocantins State, Northern Brazil, 2021-2022. Viruses 2023; 15:2136. [PMID: 38005815 PMCID: PMC10674946 DOI: 10.3390/v15112136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2023] [Revised: 10/20/2023] [Accepted: 10/21/2023] [Indexed: 11/26/2023] Open
Abstract
In Brazil, the state of Tocantins, located in north-central Brazil, has experienced a significant number of cases of arboviral disease, particularly Dengue virus (DENV). This study aimed to deepen the knowledge on DENV circulation within that state by conducting full genome sequencing of viral genomes recovered from 61 patients between June 2021 and July 2022. There were a total of 8807 and 20,692 cases in 2021 and 2022, respectively, as reported by the state's Secretary of Health. Nucleotide sequencing confirmed the circulation of DENV serotype 1, genotype V and DENV serotype 2, genotype III in the State. Younger age groups (4 to 43 years old) were mostly affected; however, no significant differences were detected regarding the gender distribution of cases in humans. Phylogenetic analysis revealed that the circulating viruses belong to DENV-1 genotype V American and DENV-2 genotype III Southeast Asian/American. The Bayesian analysis of DENV-1 genotype V genomes sequenced here are closely related to genomes previously sequenced in the state of São Paulo. Regarding the DENV-2 genotype III genomes, these clustered in a distinct, well-supported subclade, along with previously reported isolates from the states of Goiás and São Paulo. The findings reported here suggest that multiple introductions of these genotypes occurred in the Tocantins state. This observation highlights the importance of major population centers in Brazil on virus dispersion, such as those observed in other Latin American and North American countries. In the SNP analysis, DENV-1 displayed 122 distinct missense mutations, while DENV-2 had 44, with significant mutations predominantly occurring in the envelope and NS5 proteins. The analyses performed here highlight the concomitant circulation of distinct DENV-1 and -2 genotypes in some Brazilian states, underscoring the dynamic evolution of DENV and the relevance of surveillance efforts in supporting public health policies.
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Affiliation(s)
- Ueric José Borges de Souza
- Bioinformatics and Biotechnology Laboratory, Campus of Gurupi, Federal University of Tocantins, Gurupi 77410-570, Brazil; (Y.d.S.M.M.); (R.N.d.S.)
| | - Ygor da Silva Miranda Macedo
- Bioinformatics and Biotechnology Laboratory, Campus of Gurupi, Federal University of Tocantins, Gurupi 77410-570, Brazil; (Y.d.S.M.M.); (R.N.d.S.)
| | - Raíssa Nunes dos Santos
- Bioinformatics and Biotechnology Laboratory, Campus of Gurupi, Federal University of Tocantins, Gurupi 77410-570, Brazil; (Y.d.S.M.M.); (R.N.d.S.)
| | | | - Jucimária Dantas Galvão
- Central Public Health Laboratory of the State of Tocantins, Palmas 77054-970, Brazil; (F.D.P.C.); (J.D.G.)
| | - Evgeni Evgeniev Gabev
- Department of Physiology and Pathophysiology, Medical University of Sofia, 1431 Sofia, Bulgaria;
| | - Ana Cláudia Franco
- Virology Laboratory, Department of Microbiology, Immunology, and Parasitology, Institute of Basic Health Sciences, Federal University of Rio Grande do Sul, Porto Alegre 90050-170, Brazil; (A.C.F.); (P.M.R.)
| | - Paulo Michel Roehe
- Virology Laboratory, Department of Microbiology, Immunology, and Parasitology, Institute of Basic Health Sciences, Federal University of Rio Grande do Sul, Porto Alegre 90050-170, Brazil; (A.C.F.); (P.M.R.)
| | | | - Fabrício Souza Campos
- Bioinformatics and Biotechnology Laboratory, Campus of Gurupi, Federal University of Tocantins, Gurupi 77410-570, Brazil; (Y.d.S.M.M.); (R.N.d.S.)
- Virology Laboratory, Department of Microbiology, Immunology, and Parasitology, Institute of Basic Health Sciences, Federal University of Rio Grande do Sul, Porto Alegre 90050-170, Brazil; (A.C.F.); (P.M.R.)
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23
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Salas-Rojas M, de Oliveira-Filho EF, Almazán-Marín C, Rodas-Martínez AZ, Aguilar-Setién Á, Drexler JF. Serological evidence for potential yellow fever virus infection in non-human primates, southeastern Mexico. ONE HEALTH OUTLOOK 2023; 5:14. [PMID: 37876014 PMCID: PMC10594671 DOI: 10.1186/s42522-023-00090-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Accepted: 10/09/2023] [Indexed: 10/26/2023]
Abstract
BACKGROUND Arthropod-borne flaviviruses like dengue virus (DENV) and yellow fever virus (YFV) are major human pathogens. In Latin America, YFV is maintained in sylvatic cycles involving non-human primates (NHP) and forest-dwelling mosquitos. YFV supposedly does not circulate north of Panama. METHODS We conducted a serologic study for flaviviruses and other emerging viruses in NHP from southeastern Mexico. A total of thirty sera of black-handed spider monkeys (Ateles geoffroyi, n = 25), black howler monkeys (Alouatta pigra, n = 3), and mantled howler monkeys (Al. palliata, n = 2) sampled in 2012 and 2018 were screened by an indirect immunofluorescence assay (IFA) to detected IgG antibodies against DENV, YFV, Zika virus (ZIKV), West Nile virus (WNV), Rift Valley fever virus, Crimean-Congo hemorrhagic fever virus, Middle East respiratory syndrome coronavirus, and Zaire Ebola virus, and confirmed by plaque reduction neutralization tests (PRNT90) representing all mosquito-borne flavivirus serocomplexes circulating in the Americas. RESULTS A total of 16 sera (53.3%; 95% CI, 34.3-71.7) showed IFA reactivity to at least one tested flavivirus with end-point titers ranging from 1:100 to 1:1000. No serum reacted with other viruses. Monotypic and high mean PRNT90 endpoint YFV titers of 1:246 were found in 3 black-handed spider monkey sera (10.0%; 95% CI, 2.1-26.5) sampled in 2018 in Tabasco, compared to all other flaviviruses tested. Monotypic endpoint PRNT90 titers of 1:28 for Ilheus virus and 1:22 for WNV in serum of black howler monkeys sampled in 2018 in Tabasco suggested additional flavivirus exposure. CONCLUSIONS Our findings may suggest unnoticed YFV circulation. Intensification of YFV surveillance in NHP and vectors is warranted in Mexico and potentially other areas considered free of yellow fever.
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Affiliation(s)
- Mónica Salas-Rojas
- UIM en Inmunología, UMAE Hospital de Pediatría, Centro Médico Nacional "Siglo XXI", Instituto Mexicano del Seguro Social, Ciudad de Mexico, México
| | - Edmilson Ferreira de Oliveira-Filho
- Institute of Virology, Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität Zu Berlin, Charitéplatz 1, 10117, Berlin, Germany
| | - Cenia Almazán-Marín
- UIM en Inmunología, UMAE Hospital de Pediatría, Centro Médico Nacional "Siglo XXI", Instituto Mexicano del Seguro Social, Ciudad de Mexico, México
| | - Alba Zulema Rodas-Martínez
- División Académica de Ciencias Biológicas, Universidad Juárez Autónoma de Tabasco, Villahermosa, Tabasco, México
| | - Álvaro Aguilar-Setién
- UIM en Inmunología, UMAE Hospital de Pediatría, Centro Médico Nacional "Siglo XXI", Instituto Mexicano del Seguro Social, Ciudad de Mexico, México
| | - Jan Felix Drexler
- Institute of Virology, Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität Zu Berlin, Charitéplatz 1, 10117, Berlin, Germany.
- German Centre for Infection Research (DZIF), Associated Partner Site Charité, Berlin, Germany.
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Khan MB, Yang ZS, Lin CY, Hsu MC, Urbina AN, Assavalapsakul W, Wang WH, Chen YH, Wang SF. Dengue overview: An updated systemic review. J Infect Public Health 2023; 16:1625-1642. [PMID: 37595484 DOI: 10.1016/j.jiph.2023.08.001] [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: 03/30/2023] [Revised: 07/24/2023] [Accepted: 08/01/2023] [Indexed: 08/20/2023] Open
Abstract
Dengue is caused by the dengue virus (DENVs) infection and clinical manifestations include dengue fever (DF), dengue hemorrhagic fever (DHF), or dengue shock syndrome (DSS). Due to a lack of antiviral drugs and effective vaccines, several therapeutic and control strategies have been proposed. A systemic literature review was conducted according to PRISMA guidelines to select proper references to give an overview of DENV infection. Results indicate that understanding the virus characteristics and epidemiology are essential to gain the basic and clinical knowledge as well as dengue disseminated pattern and status. Different factors and mechanisms are thought to be involved in the presentation of DHF and DSS, including antibody-dependent enhancement, immune dysregulation, viral virulence, host genetic susceptibility, and preexisting dengue antibodies. This study suggests that dissecting pathogenesis and risk factors as well as developing different types of therapeutic and control strategies against DENV infection are urgently needed.
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Affiliation(s)
- Muhammad Bilal Khan
- Center for Tropical Medicine and Infectious Disease Research, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; Department of Medical Laboratory Science and Biotechnology, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
| | - Zih-Syuan Yang
- Center for Tropical Medicine and Infectious Disease Research, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; Department of Medical Laboratory Science and Biotechnology, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
| | - Chih-Yen Lin
- Center for Tropical Medicine and Infectious Disease Research, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; Department of Medical Laboratory Science and Biotechnology, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
| | - Ming-Cheng Hsu
- Center for Tropical Medicine and Infectious Disease Research, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; Department of Medical Laboratory Science and Biotechnology, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
| | - Aspiro Nayim Urbina
- Center for Tropical Medicine and Infectious Disease Research, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
| | - Wanchai Assavalapsakul
- Department of Microbiology, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
| | - Wen-Hung Wang
- School of Medicine, College of Medicine, National Sun Yat-Sen University, Kaohsiung 804201, Taiwan
| | - Yen-Hsu Chen
- Center for Tropical Medicine and Infectious Disease Research, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; School of Medicine, College of Medicine, National Sun Yat-Sen University, Kaohsiung 804201, Taiwan; Division of Infectious Disease, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung 80708, Taiwan
| | - Sheng-Fan Wang
- Center for Tropical Medicine and Infectious Disease Research, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; Department of Medical Laboratory Science and Biotechnology, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung 80708, Taiwan.
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25
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Thongsripong P, Edgerton SV, Bos S, Saborío S, Kuan G, Balmaseda A, Harris E, Bennett SN. Phylodynamics of dengue virus 2 in Nicaragua leading up to the 2019 epidemic reveals a role for lineage turnover. BMC Ecol Evol 2023; 23:58. [PMID: 37770825 PMCID: PMC10537812 DOI: 10.1186/s12862-023-02156-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Accepted: 08/21/2023] [Indexed: 09/30/2023] Open
Abstract
BACKGROUND Dengue is a mosquito-borne viral disease posing a significant threat to public health. Dengue virus (DENV) evolution is often characterized by lineage turnover, which, along with ecological and immunological factors, has been linked to changes in dengue phenotype affecting epidemic dynamics. Utilizing epidemiologic and virologic data from long-term population-based studies (the Nicaraguan Pediatric Dengue Cohort Study and Nicaraguan Dengue Hospital-based Study), we describe a lineage turnover of DENV serotype 2 (DENV-2) prior to a large dengue epidemic in 2019. Prior to this epidemic, Nicaragua had experienced relatively low levels of DENV transmission from 2014 to 2019, a period dominated by chikungunya in 2014/15 and Zika in 2016. RESULTS Our phylogenetic analyses confirmed that all Nicaraguan DENV-2 isolates from 2018 to 2019 formed their own clade within the Nicaraguan lineage of the Asian/American genotype. The emergence of the new DENV-2 lineage reflects a replacement of the formerly dominant clade presiding from 2005 to 2009, a lineage turnover marked by several shared derived amino acid substitutions throughout the genome. To elucidate evolutionary drivers of lineage turnover, we performed selection pressure analysis and reconstructed the demographic history of DENV-2. We found evidence of adaptive evolution by natural selection at the codon level as well as in branch formation. CONCLUSIONS The timing of its emergence, along with a statistical signal of adaptive evolution and distinctive amino acid substitutions, the latest in the NS5 gene, suggest that this lineage may have increased fitness relative to the prior dominant DENV-2 strains. This may have contributed to the intensity of the 2019 DENV-2 epidemic, in addition to previously identified immunological factors associated with pre-existing Zika virus immunity.
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Affiliation(s)
- Panpim Thongsripong
- Florida Medical Entomology Laboratory, Institute of Food and Agricultural Sciences, University of Florida, Vero Beach, FL, USA
| | - Sean V Edgerton
- Interdisciplinary Studies Graduate Program, The University of British Columbia, Vancouver, BC, Canada
| | - Sandra Bos
- Division of Infectious Diseases and Vaccinology, School of Public Health, University of California, Berkeley, Berkeley, CA, USA
| | - Saira Saborío
- Centro Nacional de Diagnóstico y Referencia, Laboraorio Nacional de Virología, Ministry of Health, Managua, Nicaragua
- Sustainable Sciences Institute, Managua, Nicaragua
| | - Guillermina Kuan
- Sustainable Sciences Institute, Managua, Nicaragua
- Centro de Salud Sócrates Flores Vivas, Ministry of Health, Managua, Nicaragua
| | - Angel Balmaseda
- Centro Nacional de Diagnóstico y Referencia, Laboraorio Nacional de Virología, Ministry of Health, Managua, Nicaragua
- Sustainable Sciences Institute, Managua, Nicaragua
| | - Eva Harris
- Division of Infectious Diseases and Vaccinology, School of Public Health, University of California, Berkeley, Berkeley, CA, USA
| | - Shannon N Bennett
- Department of Microbiology, California Academy of Sciences, San Francisco, CA, USA.
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26
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Garcia--Van Smévoorde M, Piorkowski G, Emboulé L, Dos Santos G, Loraux C, Guyomard-Rabenirina S, Joannes MO, Fagour L, Najioullah F, Cabié A, de Lamballerie X, Vega-Rúa A, Césaire R, Calvez E. Phylogenetic Investigations of Dengue 2019-2021 Outbreak in Guadeloupe and Martinique Caribbean Islands. Pathogens 2023; 12:1182. [PMID: 37764990 PMCID: PMC10534936 DOI: 10.3390/pathogens12091182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 09/14/2023] [Accepted: 09/15/2023] [Indexed: 09/29/2023] Open
Abstract
Dengue fever has been a public health problem in the Caribbean region since 1981, when it first reappeared in Cuba. In 1989, it was reported in Martinique and Guadeloupe (two French islands 200 km apart); since then, DENV has caused several epidemics locally. In 2019-2021, DENV-1, DENV-2, and DENV-3 were detected. Serotype distribution was differentiated, with DENV-2 and DENV-3 predominating in Guadeloupe and Martinique, respectively. Complete genome sequencing was carried out on 32 specimens, and phylogenic analysis identified the circulation of genotype V for DENV-1, cosmopolitan genotype for DENV-2, and genotype III for DENV-3. However, two distinct circulating groups were identified for DENV-1 and DENV-3, suggesting independent introductions. Overall, despite the context of the COVID-19 pandemic and the associated travel restrictions, these results confirm the active circulation of DENV and specific epidemiological features on each of the two islands. Such differences may be linked to the founder effect of the various introduction events, and to local factors such as the population immunity and the transmission capacity of the vectors. Further genomic and epidemiological characterization of DENV strains remains essential to understand how dengue spreads in each specific geographical context and to prevent future epidemics.
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Affiliation(s)
- Margot Garcia--Van Smévoorde
- Vector Control Research Laboratory, Transmission Reservoir and Pathogens Diversity Unit, Institut Pasteur de la Guadeloupe, Les Abymes 97139, Guadeloupe;
| | - Géraldine Piorkowski
- Unité des Virus Emergents (UVE), Aix-Marseille Univ-IRD 190-Inserm 1207, 13005 Marseille, France; (G.P.); (X.d.L.)
- National Reference Center for Arboviruses, National Institute of Health and Medical Research (Inserm), 13005 Marseille, France
- French Armed Forces Biomedical Research Institute (IRBA), 91220 Brétigny-sur-Orge, France
| | - Loic Emboulé
- Molecular Genetics and Inherited Red Blood Cell Diseases Laboratory, University Hospitals of Guadeloupe, Pointe-à-Pitre 97159, Guadeloupe;
| | - Georges Dos Santos
- Department of Virology, University Hospitals of Martinique, Fort-de-France, 97200 Martinique, France; (G.D.S.); (L.F.)
- Pathogenesis and Controle of Chronic and Emerging Infections, French National Blood Service (EFS), National Institute of Health and Medical Research (Inserm), University of Montpellier, 34000 Montpellier, France; (A.C.); (R.C.)
- University of Antilles, Pointe-à-Pitre 97110, Guadeloupe
| | - Cécile Loraux
- Department of Virology, University Hospitals of Guadeloupe, Pointe-à-Pitre 97159, Guadeloupe;
| | - Stéphanie Guyomard-Rabenirina
- Microbial Ecosystems Interaction Laboratory, Transmission Reservoir and Pathogens Diversity Unit, Institut Pasteur de la Guadeloupe, Les Abymes 97139, Guadeloupe;
| | - Marie-Odile Joannes
- Department of Hematology Immunology Histocompatibility, University Hospitals of Guadeloupe, Pointe-à-Pitre 97159, Guadeloupe;
| | - Laurence Fagour
- Department of Virology, University Hospitals of Martinique, Fort-de-France, 97200 Martinique, France; (G.D.S.); (L.F.)
| | - Fatiha Najioullah
- Department of Clinical Research and Innovation, University Hospitals of Martinique, Fort-de-France, 97200 Martinique, France;
| | - André Cabié
- Pathogenesis and Controle of Chronic and Emerging Infections, French National Blood Service (EFS), National Institute of Health and Medical Research (Inserm), University of Montpellier, 34000 Montpellier, France; (A.C.); (R.C.)
- University of Antilles, Pointe-à-Pitre 97110, Guadeloupe
- Department of Infectious and Tropical Diseases, University Hospitals of Martinique, Fort-de-France, 97200 Martinique, France
| | - Xavier de Lamballerie
- Unité des Virus Emergents (UVE), Aix-Marseille Univ-IRD 190-Inserm 1207, 13005 Marseille, France; (G.P.); (X.d.L.)
- National Reference Center for Arboviruses, National Institute of Health and Medical Research (Inserm), 13005 Marseille, France
| | - Anubis Vega-Rúa
- Vector Control Research Laboratory, Transmission Reservoir and Pathogens Diversity Unit, Institut Pasteur de la Guadeloupe, Les Abymes 97139, Guadeloupe;
| | - Raymond Césaire
- Pathogenesis and Controle of Chronic and Emerging Infections, French National Blood Service (EFS), National Institute of Health and Medical Research (Inserm), University of Montpellier, 34000 Montpellier, France; (A.C.); (R.C.)
- University of Antilles, Pointe-à-Pitre 97110, Guadeloupe
- Department of Virology, University Hospitals of Guadeloupe, Pointe-à-Pitre 97159, Guadeloupe;
| | - Elodie Calvez
- Vector Control Research Laboratory, Transmission Reservoir and Pathogens Diversity Unit, Institut Pasteur de la Guadeloupe, Les Abymes 97139, Guadeloupe;
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Ternovoi VA, Shvalov AN, Kartashov MY, Ponomareva EP, Tupota NL, Khoroshavin YA, Bayandin RB, Gladysheva AV, Mikryukova TP, Tregubchak TV, Loktev VB. The Viromes of Mosquitoes from the Natural Landscapes of Western Siberia. Viruses 2023; 15:1896. [PMID: 37766302 PMCID: PMC10537626 DOI: 10.3390/v15091896] [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: 07/13/2023] [Revised: 08/28/2023] [Accepted: 08/29/2023] [Indexed: 09/29/2023] Open
Abstract
The metagenomic analysis of mosquitoes allows for the genetic characterization of mosquito-associated viruses in different regions of the world. This study applied a metagenomic approach to identify novel viral sequences in seven species of mosquitoes collected from the Novosibirsk region of western Siberia. Using NGS sequencing, we identified 15 coding-complete viral polyproteins (genomes) and 15 viral-like partial sequences in mosquitoes. The complete sequences for novel viruses or the partial sequences of capsid proteins, hypothetical viral proteins, and RdRps were used to identify their taxonomy. The novel viral sequences were classified within the orders Tymovirales and Picornavirales and the families Partitiviridae, Totiviridae, Tombusviridae, Iflaviridae, Nodaviridae, Permutotetraviridae, and Solemoviridae, with several attributed to four unclassified RNA viruses. Interestingly, the novel putative viruses and viral sequences were mainly associated with the mosquito Coquillettidia richardii. This study aimed to increase our understanding of the viral diversity in mosquitoes found in the natural habitats of Siberia, which is characterized by very long, snowy, and cold winters.
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Affiliation(s)
- Vladimir A. Ternovoi
- State Research Center Virology and Biotechnology “Vector”, Federal Service for Surveillance on Consumer Rights Protection and Human Wellbeing of Russia, World-Class Genomic Research Center for Biological Safety and Technological Independence, 630559 Koltsovo, Russia (M.Y.K.); (E.P.P.); (N.L.T.); (Y.A.K.); (R.B.B.); (A.V.G.); (T.P.M.); (T.V.T.)
| | - Alexander N. Shvalov
- State Research Center Virology and Biotechnology “Vector”, Federal Service for Surveillance on Consumer Rights Protection and Human Wellbeing of Russia, World-Class Genomic Research Center for Biological Safety and Technological Independence, 630559 Koltsovo, Russia (M.Y.K.); (E.P.P.); (N.L.T.); (Y.A.K.); (R.B.B.); (A.V.G.); (T.P.M.); (T.V.T.)
| | - Mikhail Yu. Kartashov
- State Research Center Virology and Biotechnology “Vector”, Federal Service for Surveillance on Consumer Rights Protection and Human Wellbeing of Russia, World-Class Genomic Research Center for Biological Safety and Technological Independence, 630559 Koltsovo, Russia (M.Y.K.); (E.P.P.); (N.L.T.); (Y.A.K.); (R.B.B.); (A.V.G.); (T.P.M.); (T.V.T.)
- Department of Physics, Novosibirsk State University, 630090 Novosibirsk, Russia
| | - Eugenia P. Ponomareva
- State Research Center Virology and Biotechnology “Vector”, Federal Service for Surveillance on Consumer Rights Protection and Human Wellbeing of Russia, World-Class Genomic Research Center for Biological Safety and Technological Independence, 630559 Koltsovo, Russia (M.Y.K.); (E.P.P.); (N.L.T.); (Y.A.K.); (R.B.B.); (A.V.G.); (T.P.M.); (T.V.T.)
| | - Natalia L. Tupota
- State Research Center Virology and Biotechnology “Vector”, Federal Service for Surveillance on Consumer Rights Protection and Human Wellbeing of Russia, World-Class Genomic Research Center for Biological Safety and Technological Independence, 630559 Koltsovo, Russia (M.Y.K.); (E.P.P.); (N.L.T.); (Y.A.K.); (R.B.B.); (A.V.G.); (T.P.M.); (T.V.T.)
| | - Yuri A. Khoroshavin
- State Research Center Virology and Biotechnology “Vector”, Federal Service for Surveillance on Consumer Rights Protection and Human Wellbeing of Russia, World-Class Genomic Research Center for Biological Safety and Technological Independence, 630559 Koltsovo, Russia (M.Y.K.); (E.P.P.); (N.L.T.); (Y.A.K.); (R.B.B.); (A.V.G.); (T.P.M.); (T.V.T.)
| | - Roman B. Bayandin
- State Research Center Virology and Biotechnology “Vector”, Federal Service for Surveillance on Consumer Rights Protection and Human Wellbeing of Russia, World-Class Genomic Research Center for Biological Safety and Technological Independence, 630559 Koltsovo, Russia (M.Y.K.); (E.P.P.); (N.L.T.); (Y.A.K.); (R.B.B.); (A.V.G.); (T.P.M.); (T.V.T.)
| | - Anastasia V. Gladysheva
- State Research Center Virology and Biotechnology “Vector”, Federal Service for Surveillance on Consumer Rights Protection and Human Wellbeing of Russia, World-Class Genomic Research Center for Biological Safety and Technological Independence, 630559 Koltsovo, Russia (M.Y.K.); (E.P.P.); (N.L.T.); (Y.A.K.); (R.B.B.); (A.V.G.); (T.P.M.); (T.V.T.)
| | - Tamara P. Mikryukova
- State Research Center Virology and Biotechnology “Vector”, Federal Service for Surveillance on Consumer Rights Protection and Human Wellbeing of Russia, World-Class Genomic Research Center for Biological Safety and Technological Independence, 630559 Koltsovo, Russia (M.Y.K.); (E.P.P.); (N.L.T.); (Y.A.K.); (R.B.B.); (A.V.G.); (T.P.M.); (T.V.T.)
| | - Tatyana V. Tregubchak
- State Research Center Virology and Biotechnology “Vector”, Federal Service for Surveillance on Consumer Rights Protection and Human Wellbeing of Russia, World-Class Genomic Research Center for Biological Safety and Technological Independence, 630559 Koltsovo, Russia (M.Y.K.); (E.P.P.); (N.L.T.); (Y.A.K.); (R.B.B.); (A.V.G.); (T.P.M.); (T.V.T.)
| | - Valery B. Loktev
- State Research Center Virology and Biotechnology “Vector”, Federal Service for Surveillance on Consumer Rights Protection and Human Wellbeing of Russia, World-Class Genomic Research Center for Biological Safety and Technological Independence, 630559 Koltsovo, Russia (M.Y.K.); (E.P.P.); (N.L.T.); (Y.A.K.); (R.B.B.); (A.V.G.); (T.P.M.); (T.V.T.)
- Department of Physics, Novosibirsk State University, 630090 Novosibirsk, Russia
- Institute of Cytology and Genetics, 630090 Novosibirsk, Russia
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28
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Kapuganti SK, Saumya KU, Verma D, Giri R. Investigating the aggregation perspective of Dengue virus proteome. Virology 2023; 586:12-22. [PMID: 37473502 DOI: 10.1016/j.virol.2023.07.010] [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: 04/24/2023] [Revised: 06/30/2023] [Accepted: 07/11/2023] [Indexed: 07/22/2023]
Abstract
Dengue viruses are human pathogens that are transmitted through mosquitoes. Apart from the typical symptoms associated with viral fevers, DENV infections are known to cause several neurological complications such as meningitis, encephalitis, intracranial haemorrhage, retinopathies along with the more severe, and sometimes fatal, vascular leakage and dengue shock syndrome. This study was designed to investigate, in detail, the predicted viral protein aggregation prone regions among all serotypes. Further, in order to understand the cross-talk between viral protein aggregation and aggregation of cellular proteins, cross-seeding experiments between the DENV NS1 (1-30), corresponding to the β-roll domain and the diabetes hallmark protein, amylin, were performed. Various techniques such as fluorescence spectroscopy, circular dichroism, atomic force microscopy and immunoblotting have been employed for this. We observe that the DENV proteomes have many predicted APRs and the NS1 (1-30) of DENV1-3, 2K and capsid anchor of DENV2 and DENV4 are capable of forming amyloids, in vitro. Further, the DENV NS1 (1-30), aggregates are also able to cross-seed and enhance amylin aggregation and vice-versa. This knowledge may lead to an opportunity for designing suitable inhibitors of protein aggregation that may be beneficial for viral infections and comorbidities.
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Affiliation(s)
- Shivani Krishna Kapuganti
- Indian Institute of Technology Mandi, School of Basic Sciences, VPO Kamand, Himachal Pradesh, 175005, India
| | - Kumar Udit Saumya
- Indian Institute of Technology Mandi, School of Basic Sciences, VPO Kamand, Himachal Pradesh, 175005, India
| | - Deepanshu Verma
- Indian Institute of Technology Mandi, School of Basic Sciences, VPO Kamand, Himachal Pradesh, 175005, India
| | - Rajanish Giri
- Indian Institute of Technology Mandi, School of Basic Sciences, VPO Kamand, Himachal Pradesh, 175005, India.
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29
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Cherif MS, Keita M, Dahal P, Guilavogui T, Beavogui AH, Diassy L, Conde M, Touré A, Delamou A. Neglected tropical diseases in Republic of Guinea: disease endemicity, case burden and the road towards the 2030 target. Int Health 2023; 15:490-504. [PMID: 37232124 PMCID: PMC10472893 DOI: 10.1093/inthealth/ihad036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 03/02/2023] [Accepted: 05/01/2023] [Indexed: 05/27/2023] Open
Abstract
Neglected tropical diseases (NTDs) predominantly affect vulnerable and marginalized populations in tropical and subtropical areas and globally affect more than one billion people. In Guinea, the burden of NTDs is estimated to be >7.5 disability-adjusted life years per million inhabitants. Currently the Guinea NTDs master plan (2017-2020) has identified eight diseases as public health problems: onchocerciasis, lymphatic filariasis, trachoma, schistosomiasis and soil-transmitted helminthiasis, leprosy, human African trypanosomiasis and Buruli ulcer. In this review we discuss the past and the current case burden of the priority NTDs in Guinea, highlight the major milestones and discuss current and future areas of focus for achieving the 2030 target outlined by the World Health Organization.
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Affiliation(s)
- Mahamoud Sama Cherif
- Faculty of Sciences and Health Technics, Gamal Abdel Nasser University of Conakry, Conakry, Guinea
- Direction Regionale de la Santé de Faranah, Ministère de la santé et de l'hygiène publique, Faranah, Guinea
- Service de Pediatrie, Hospital National Ignace Deen, Ministère de la santé et de l'Hygiène Publique, Conakry, Guinea
| | - Mory Keita
- World Health Organization, Regional Office for the Eastern Mediterranean, Cairo, Egypt
- Institute of Global Health, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Prabin Dahal
- Centre for Tropical Medicine and Global Health, University of Oxford, Oxford, UK
| | - Timothé Guilavogui
- Management and Programmes Coordination, Ministry of Health, Conakry, Guinea
| | - Abdoul Habib Beavogui
- Faculty of Sciences and Health Technics, Gamal Abdel Nasser University of Conakry, Conakry, Guinea
- Centre National de Formation et Recherche en Sante Rurale de Maferinyah, Maferinyah, Guinea
| | - Lamine Diassy
- World Health Organization, Guinea office, Landreah, Corniche Nord, Boîte postale 817, Conakry, Guinea
| | - Mohamed Conde
- Service de Pediatrie, Hospital National Ignace Deen, Ministère de la santé et de l'Hygiène Publique, Conakry, Guinea
| | - Abdoulaye Touré
- Faculty of Sciences and Health Technics, Gamal Abdel Nasser University of Conakry, Conakry, Guinea
- Institut National de Santé Publique, Ministère de la Santé et de l'Hygiène Publique, Conakry, Guinea
| | - Alexandre Delamou
- Faculty of Sciences and Health Technics, Gamal Abdel Nasser University of Conakry, Conakry, Guinea
- Centre National de Formation et Recherche en Sante Rurale de Maferinyah, Maferinyah, Guinea
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30
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Wolf J, de Souza AP, de Schardosim RF, Pille A, Maccari JG, Mutlaq MP, Nasi LA. Molecular evolution of dengue virus: a Bayesian approach using 1581 whole-genome sequences from January 1944 to July 2022. Arch Virol 2023; 168:202. [PMID: 37410187 DOI: 10.1007/s00705-023-05833-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Accepted: 06/07/2023] [Indexed: 07/07/2023]
Abstract
Dengue is a viral disease transmitted by mosquitoes that has spread rapidly across all continents in recent years. There are four distinct but closely related serotypes of the virus that causes dengue (DENV-1, DENV-2, DENV-3, and DENV-4). In the present study, we evaluated temporal spreading and molecular evolution of dengue virus (DENV) serotypes. Bayesian coalescent analysis was performed to study viral evolution, and it was estimated that the most recent common ancestor of DENV-1 was present in 1884 in Southeast Asia, that of DENV-2 was present in 1723 in Europe, that of DENV-3 was present in 1921 in Southeast Asia, and that of DENV-4 was present in 1876 in Southeast Asia. DENV appears to have originated in Spain in approximately 1682, and it was disseminated in Asia and Oceania in approximately 1847. After this period, the virus was introduced into North America in approximately 1890. In South America, it was first disseminated to Ecuador in approximately 1897 and then to Brazil in approximately 1910. Dengue has had a significant impact on global health worldwide, and the present study provides an overview of the molecular evolution of DENV serotypes.
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Affiliation(s)
- Jonas Wolf
- Value Management Office, Medical Manager at Hospital Moinhos de Vento, Porto Alegre, RS, Brazil.
| | | | | | - Arthur Pille
- Value Management Office, Medical Manager at Hospital Moinhos de Vento, Porto Alegre, RS, Brazil
| | | | - Mohamed Parrini Mutlaq
- Chief Executive Officer at Hospital Moinhos de Vento, Porto Alegre, Rio Grande do Sul, Brazil
| | - Luiz Antonio Nasi
- Chief Medical Officer, Hospital Moinhos de Vento, Porto Alegre, RS, Brazil
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Katzelnick LC, Quentin E, Colston S, Ha TA, Andrade P, Eisenberg JN, Ponce P, Coloma J, Cevallos V. Increasing transmission of dengue virus across ecologically diverse regions of Ecuador and associated risk factors. MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2023:2023.05.25.23290519. [PMID: 37398346 PMCID: PMC10312896 DOI: 10.1101/2023.05.25.23290519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/04/2023]
Abstract
The distribution and intensity of viral diseases transmitted by Aedes aegypti mosquitoes, including dengue, have rapidly increased over the last century. Ecuador is an interesting country to study drivers of dengue virus (DENV) transmission given it has multiple ecologically and demographically distinct regions. Here, we analyze province-level age-stratified dengue prevalence data from 2000-2019 using catalytic models to estimate the force of infection of DENV over eight decades and across provinces in Ecuador. We found that provinces established endemic DENV transmission at different time periods. Coastal provinces with the largest and most connected cities had the earliest and highest increase in DENV transmission, starting around 1980 and continuing to the present. In contrast, remote and rural areas with reduced access, like the northern coast and the Amazon regions, experienced a rise in DENV transmission and endemicity only in the last 10 to 20 years. The newly introduced chikungunya and Zika viruses have distinct age-specific prevalence distributions consistent with recent emergence across all provinces. We evaluated factors to the resolution of 1 hectare associated with geographic differences in vector suitability and arbovirus disease in the last 10 years by modeling 11,693 A aegypti presence points and 73,550 arbovirus cases. In total, 56% of the population of Ecuador lives in areas with high risk of Aedes aegypti. Most suitable provinces had hotspots for arbovirus disease risk, with population size, elevation, sewage connection, trash collection, and access to water as important determinants. Our investigation serves as a case study of the changes driving the expansion of DENV and other arboviruses globally and suggest that control efforts should be expanded to semi-urban and rural areas and to historically isolated regions to counteract increasing dengue outbreaks.
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Affiliation(s)
- Leah C. Katzelnick
- Viral Epidemiology and Immunity Unit, Laboratory of Infectious Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892-3203, USA
| | - Emmanuelle Quentin
- Centro de Investigación en Salud Pública y Epidemiología Clínica, Universidad Tecnológica Equinoccial, Quito, 170129, Ecuador
| | - Savannah Colston
- Department of Epidemiology, School of Public Health, University of Michigan, Ann Arbor, MI, 48109-2029, USA
| | - Thien-An Ha
- Division of Infectious Diseases and Vaccinology, School of Public Health, University of California, Berkeley, Berkeley, CA, 94720-3370, USA
| | - Paulina Andrade
- Division of Infectious Diseases and Vaccinology, School of Public Health, University of California, Berkeley, Berkeley, CA, 94720-3370, USA
| | - Joseph N.S. Eisenberg
- Department of Epidemiology, School of Public Health, University of Michigan, Ann Arbor, MI, 48109-2029, USA
| | - Patricio Ponce
- Centro de Investigación en Enfermedades Infeciosas y Vectoriales (CIREV), Instituto Nacional de Investigación en Salud Pública (INSPI), Quito, 170136, Ecuador
| | - Josefina Coloma
- Division of Infectious Diseases and Vaccinology, School of Public Health, University of California, Berkeley, Berkeley, CA, 94720-3370, USA
| | - Varsovia Cevallos
- Centro de Investigación en Enfermedades Infeciosas y Vectoriales (CIREV), Instituto Nacional de Investigación en Salud Pública (INSPI), Quito, 170136, Ecuador
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32
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Nakase T, Giovanetti M, Obolski U, Lourenço J. Global transmission suitability maps for dengue virus transmitted by Aedes aegypti from 1981 to 2019. Sci Data 2023; 10:275. [PMID: 37173303 PMCID: PMC10182074 DOI: 10.1038/s41597-023-02170-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Accepted: 04/20/2023] [Indexed: 05/15/2023] Open
Abstract
Mosquito-borne viruses increasingly threaten human populations due to accelerating changes in climate, human and mosquito migration, and land use practices. Over the last three decades, the global distribution of dengue has rapidly expanded, causing detrimental health and economic problems in many areas of the world. To develop effective disease control measures and plan for future epidemics, there is an urgent need to map the current and future transmission potential of dengue across both endemic and emerging areas. Expanding and applying Index P, a previously developed mosquito-borne viral suitability measure, we map the global climate-driven transmission potential of dengue virus transmitted by Aedes aegypti mosquitoes from 1981 to 2019. This database of dengue transmission suitability maps and an R package for Index P estimations are offered to the public health community as resources towards the identification of past, current and future transmission hotspots. These resources and the studies they facilitate can contribute to the planning of disease control and prevention strategies, especially in areas where surveillance is unreliable or non-existent.
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Affiliation(s)
- Taishi Nakase
- Nuffield Department of Medicine, University of Oxford, Oxford, OX3 7BN, UK.
| | - Marta Giovanetti
- Laboratório de Flavivírus, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro, Rio de Janeiro, 21040-360, Brazil
- Department of Science and Technology for Humans and the Environment, University of Campus Bio-Medico di Roma, Rome, 00128, Italy
| | - Uri Obolski
- School of Public Health, Faculty of Medicine, Tel Aviv University, Tel Aviv, 69978, Israel
- Porter School of the Environment and Earth Sciences, Faculty of Exact Sciences, Tel Aviv University, Tel Aviv, 69978, Israel
| | - José Lourenço
- Biosystems and Integrative Sciences Institute, Faculty of Sciences, University of Lisbon, Lisbon, 1749-016, Portugal.
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Lan Y, van Leur SW, Fernando JA, Wong HH, Kampmann M, Siu L, Zhang J, Li M, Nicholls JM, Sanyal S. Viral subversion of selective autophagy is critical for biogenesis of virus replication organelles. Nat Commun 2023; 14:2698. [PMID: 37164963 PMCID: PMC10171163 DOI: 10.1038/s41467-023-38377-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Accepted: 04/25/2023] [Indexed: 05/12/2023] Open
Abstract
Infection by many (+)RNA viruses is accompanied by ER-expansion and membrane remodelling to form viral replication organelles, followed by assembly and secretion of viral progenies. We previously identified that virus-triggered lipophagy was critical for flaviviral assembly, and is driven by the lipid droplet associated protein Ancient ubiquitin protein 1 (Aup1). A ubiquitin conjugating protein Ube2g2 that functions as a co-factor for Aup1 was identified as a host dependency factor in our study. Here we characterized its function: Ube2g2-deficient cells displayed a dramatic reduction in virus production, which could be rescued by reconstituting the wild-type but not the catalytically deficient (C89K) mutant of Ube2g2, suggesting that its enzymatic activity is necessary. Ube2g2 deficiency did not affect entry of virus particles but resulted in a profound loss in formation of replication organelles, and production of infectious progenies. This phenomenon resulted from its dual activity in (i) triggering lipophagy in conjunction with Aup1, and (ii) degradation of ER chaperones such as Herpud1, SEL1L, Hrd1, along with Sec62 to restrict ER-phagy upon Xbp1-IRE1 triggered ER expansion. Our results therefore underscore an exquisite fine-tuning of selective autophagy by flaviviruses that drive host membrane reorganization during infection to enable biogenesis of viral replication organelles.
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Affiliation(s)
- Yun Lan
- HKU-Pasteur Research Pole, School of Public Health, Li Ka Shing Faculty of Medicine, University of Hong Kong, Hong Kong SAR, China
| | | | - Julia Ayano Fernando
- HKU-Pasteur Research Pole, School of Public Health, Li Ka Shing Faculty of Medicine, University of Hong Kong, Hong Kong SAR, China
| | - Ho Him Wong
- HKU-Pasteur Research Pole, School of Public Health, Li Ka Shing Faculty of Medicine, University of Hong Kong, Hong Kong SAR, China
| | - Martin Kampmann
- HKU-Pasteur Research Pole, School of Public Health, Li Ka Shing Faculty of Medicine, University of Hong Kong, Hong Kong SAR, China
| | - Lewis Siu
- HKU-Pasteur Research Pole, School of Public Health, Li Ka Shing Faculty of Medicine, University of Hong Kong, Hong Kong SAR, China
| | - Jingshu Zhang
- HKU-Pasteur Research Pole, School of Public Health, Li Ka Shing Faculty of Medicine, University of Hong Kong, Hong Kong SAR, China
| | - Mingyuan Li
- HKU-Pasteur Research Pole, School of Public Health, Li Ka Shing Faculty of Medicine, University of Hong Kong, Hong Kong SAR, China
| | - John M Nicholls
- Department of Pathology, Li Ka Shing Faculty of Medicine, University of Hong Kong, Hong Kong SAR, China
| | - Sumana Sanyal
- HKU-Pasteur Research Pole, School of Public Health, Li Ka Shing Faculty of Medicine, University of Hong Kong, Hong Kong SAR, China.
- Sir William Dunn School of Pathology, University of Oxford, South Parks Road, Oxford, OX1 3RE, UK.
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López MS, Gómez AA, Müller GV, Walker E, Robert MA, Estallo EL. Relationship between Climate Variables and Dengue Incidence in Argentina. ENVIRONMENTAL HEALTH PERSPECTIVES 2023; 131:57008. [PMID: 37224070 DOI: 10.1289/ehp11616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
BACKGROUND Climate change is an important driver of the increased spread of dengue from tropical and subtropical regions to temperate areas around the world. Climate variables such as temperature and precipitation influence the dengue vector's biology, physiology, abundance, and life cycle. Thus, an analysis is needed of changes in climate change and their possible relationships with dengue incidence and the growing occurrence of epidemics recorded in recent decades. OBJECTIVES This study aimed to assess the increasing incidence of dengue driven by climate change at the southern limits of dengue virus transmission in South America. METHODS We analyzed the evolution of climatological, epidemiological, and biological variables by comparing a period of time without the presence of dengue cases (1976-1997) to a more recent period of time in which dengue cases and important outbreaks occurred (1998-2020). In our analysis, we consider climate variables associated with temperature and precipitation, epidemiological variables such as the number of reported dengue cases and incidence of dengue, and biological variables such as the optimal temperature ranges for transmission of dengue vector. RESULTS The presence of dengue cases and epidemic outbreaks are observed to be consistent with positive trends in temperature and anomalies from long-term means. Dengue cases do not seem to be associated with precipitation trends and anomalies. The number of days with optimal temperatures for dengue transmission increased from the period without dengue cases to the period with occurrences of dengue cases. The number of months with optimal transmission temperatures also increased between periods but to a lesser extent. CONCLUSIONS The higher incidence of dengue virus and its expansion to different regions of Argentina seem to be associated with temperature increases in the country during the past two decades. The active surveillance of both the vector and associated arboviruses, together with continued meteorological data collection, will facilitate the assessment and prediction of future epidemics that use trends in the accelerated changes in climate. Such surveillance should go hand in hand with efforts to improve the understanding of the mechanisms driving the geographic expansion of dengue and other arboviruses beyond the current limits. https://doi.org/10.1289/EHP11616.
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Affiliation(s)
- María S López
- Consejo Nacional de Investigaciones Científicas y Técnicas, Santa Fe, Argentina
- Centro de Estudios de Variabilidad y Cambio Climático, Facultad de Ingeniería y Ciencias Hídricas, Universidad Nacional del Litoral, Santa Fe, Argentina
| | - Andre A Gómez
- Consejo Nacional de Investigaciones Científicas y Técnicas, Santa Fe, Argentina
- Centro de Estudios de Variabilidad y Cambio Climático, Facultad de Ingeniería y Ciencias Hídricas, Universidad Nacional del Litoral, Santa Fe, Argentina
| | - Gabriela V Müller
- Consejo Nacional de Investigaciones Científicas y Técnicas, Santa Fe, Argentina
- Centro de Estudios de Variabilidad y Cambio Climático, Facultad de Ingeniería y Ciencias Hídricas, Universidad Nacional del Litoral, Santa Fe, Argentina
| | - Elisabet Walker
- Consejo Nacional de Investigaciones Científicas y Técnicas, Santa Fe, Argentina
- Centro de Estudios de Variabilidad y Cambio Climático, Facultad de Ingeniería y Ciencias Hídricas, Universidad Nacional del Litoral, Santa Fe, Argentina
| | - Michael A Robert
- Department of Mathematics, Virginia Polytechnic Institute and State University, Blacksburg, Virginia, USA
- Center for Emerging, Zoonotic, and Arthropod-Borne Pathogens, Virginia Polytechnic Institute and State University, Blacksburg, Virginia, USA
| | - Elizabet L Estallo
- Universidad Nacional de Córdoba, Facultad de Ciencias Exactas, Físicas y Naturales, Centro de Investigaciones Entomológicas de Córdoba, Córdoba Argentina
- Instituto de Investigaciones Biológicas y Tecnológicas, Consejo Nacional de Investigaciones Científicas y Técnicas, Universidad Nacional de Córdoba, Córdoba, Argentina
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Lessa CLS, Hodel KVS, Gonçalves MDS, Machado BAS. Dengue as a Disease Threatening Global Health: A Narrative Review Focusing on Latin America and Brazil. Trop Med Infect Dis 2023; 8:tropicalmed8050241. [PMID: 37235289 DOI: 10.3390/tropicalmed8050241] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 04/10/2023] [Accepted: 04/20/2023] [Indexed: 05/28/2023] Open
Abstract
Arboviruses constitute the largest known group of viruses. These viruses are the etiological agents of pathologies known as arboviruses, with dengue being one of the most prevalent. Dengue has resulted in important socioeconomic burdens placed on different countries around the world, including those in Latin America, especially Brazil. Thus, this work intends to carry out a narrative-based review of the literature, conducted using a study of the secondary data developed through a survey of scientific literature databases, and to present the situation of dengue, particularly its distribution in these localities. Our findings from the literature demonstrate the difficulties that managers face in controlling the spread of and planning a response against dengue, pointing to the high cost of the disease for public coffers, rendering the resources that are already limited even scarcer. This can be associated with the different factors that affect the spread of the disease, including ecological, environmental, and social factors. Thus, in order to combat the disease, it is expected that targeted and properly coordinated public policies need to be adopted not only in specific localities, but also globally.
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Affiliation(s)
- Carlos Letacio Silveira Lessa
- Postgraduate Program in Industrial Management and Technology, SENAI CIMATEC University Center, Salvador 41650-010, Brazil
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), Salvador 40296-710, Brazil
| | - Katharine Valéria Saraiva Hodel
- SENAI Institute of Innovation (ISI) in Health Advanced Systems (CIMATEC ISI SAS), SENAI CIMATEC University Center, Salvador 41650-010, Brazil
| | - Marilda de Souza Gonçalves
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), Salvador 40296-710, Brazil
- Anemia Research Laboratory, Department of Clinical and Toxicological Analysis, Faculty of Pharmacy, Federal University of Bahia, Salvador 40170-115, Brazil
| | - Bruna Aparecida Souza Machado
- Postgraduate Program in Industrial Management and Technology, SENAI CIMATEC University Center, Salvador 41650-010, Brazil
- SENAI Institute of Innovation (ISI) in Health Advanced Systems (CIMATEC ISI SAS), SENAI CIMATEC University Center, Salvador 41650-010, Brazil
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Damtew YT, Tong M, Varghese BM, Anikeeva O, Hansen A, Dear K, Zhang Y, Morgan G, Driscoll T, Capon T, Bi P. Effects of high temperatures and heatwaves on dengue fever: a systematic review and meta-analysis. EBioMedicine 2023; 91:104582. [PMID: 37088034 PMCID: PMC10149186 DOI: 10.1016/j.ebiom.2023.104582] [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: 01/06/2023] [Revised: 04/03/2023] [Accepted: 04/06/2023] [Indexed: 04/25/2023] Open
Abstract
BACKGROUND Studies have shown that dengue virus transmission increases in association with ambient temperature. We performed a systematic review and meta-analysis to assess the effect of both high temperatures and heatwave events on dengue transmission in different climate zones globally. METHODS A systematic literature search was conducted in PubMed, Scopus, Embase, and Web of Science from January 1990 to September 20, 2022. We included peer reviewed original observational studies using ecological time series, case crossover, or case series study designs reporting the association of high temperatures and heatwave with dengue and comparing risks over different exposures or time periods. Studies classified as case reports, clinical trials, non-human studies, conference abstracts, editorials, reviews, books, posters, commentaries; and studies that examined only seasonal effects were excluded. Effect estimates were extracted from published literature. A random effects meta-analysis was performed to pool the relative risks (RRs) of dengue infection per 1 °C increase in temperature, and further subgroup analyses were also conducted. The quality and strength of evidence were evaluated following the Navigation Guide systematic review methodology framework. The review protocol has been registered in the International Prospective Register of Systematic Reviews (PROSPERO). FINDINGS The study selection process yielded 6367 studies. A total of 106 studies covering more than four million dengue cases fulfilled the inclusion criteria; of these, 54 studies were eligible for meta-analysis. The overall pooled estimate showed a 13% increase in risk of dengue infection (RR = 1.13; 95% confidence interval (CI): 1.11-1.16, I2 = 98.0%) for each 1 °C increase in high temperatures. Subgroup analyses by climate zones suggested greater effects of temperature in tropical monsoon climate zone (RR = 1.29, 95% CI: 1.11-1.51) and humid subtropical climate zone (RR = 1.20, 95% CI: 1.15-1.25). Heatwave events showed association with an increased risk of dengue infection (RR = 1.08; 95% CI: 0.95-1.23, I2 = 88.9%), despite a wide confidence interval. The overall strength of evidence was found to be "sufficient" for high temperatures but "limited" for heatwaves. Our results showed that high temperatures increased the risk of dengue infection, albeit with varying risks across climate zones and different levels of national income. INTERPRETATION High temperatures increased the relative risk of dengue infection. Future studies on the association between temperature and dengue infection should consider local and regional climate, socio-demographic and environmental characteristics to explore vulnerability at local and regional levels for tailored prevention. FUNDING Australian Research Council Discovery Program.
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Affiliation(s)
- Yohannes Tefera Damtew
- School of Public Health, The University of Adelaide, Adelaide, South Australia, 5005, Australia; College of Health and Medical Sciences, Haramaya University, P.O.BOX 138, Dire Dawa, Ethiopia.
| | - Michael Tong
- National Centre for Epidemiology and Population Health, ANU College of Health and Medicine, The Australian National University, Canberra ACT, 2601, Australia.
| | - Blesson Mathew Varghese
- School of Public Health, The University of Adelaide, Adelaide, South Australia, 5005, Australia.
| | - Olga Anikeeva
- School of Public Health, The University of Adelaide, Adelaide, South Australia, 5005, Australia.
| | - Alana Hansen
- School of Public Health, The University of Adelaide, Adelaide, South Australia, 5005, Australia.
| | - Keith Dear
- School of Public Health, The University of Adelaide, Adelaide, South Australia, 5005, Australia.
| | - Ying Zhang
- School of Public Health, Faculty of Medicine and Health, The University of Sydney, New South Wales, 2006, Australia.
| | - Geoffrey Morgan
- School of Public Health, Faculty of Medicine and Health, The University of Sydney, New South Wales, 2006, Australia.
| | - Tim Driscoll
- School of Public Health, Faculty of Medicine and Health, The University of Sydney, New South Wales, 2006, Australia.
| | - Tony Capon
- Monash Sustainable Development Institute, Monash University, Melbourne, Victoria, Australia.
| | - Peng Bi
- School of Public Health, The University of Adelaide, Adelaide, South Australia, 5005, Australia.
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Fernandez-Guzman D, Caira-Chuquineyra B, Calderon-Ramirez PM, Cisneros-Alcca S, Benito-Vargas RM. Sociodemographic factors associated to knowledge and attitudes towards dengue prevention among the Peruvian population: findings from a national survey. BMJ Open 2023; 13:e071236. [PMID: 36944464 PMCID: PMC10032396 DOI: 10.1136/bmjopen-2022-071236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/23/2023] Open
Abstract
OBJECTIVES To evaluate the frequency of knowledge and attitudes towards dengue prevention among the Peruvian population, as well as the sociodemographic factors associated with reported knowledge and attitude outcomes. DESIGN/SETTING A cross-sectional study was conducted, based on information from the National Survey of Budget Programs of Peru, 2019. PARTICIPANTS We included 57 829 respondents with a mean age of 40.3±17.4 years, of whom 52.8% were women and 87.6% were from urban areas. PRIMARY AND SECONDARY OUTCOMES Knowledge about dengue infection (transmission, symptoms, importance of going to a health centre and not self-medicating) and preventive attitudes to avoid infection. RESULTS Of all the respondents, 36.2% (n=23 247) presented good knowledge about dengue and 11.6% (n=7890) had a higher number of preventive attitudes (≥3 attitudes). In the multivariate regression analysis, we found that being female (for knowledge: aPR (adjusted prevalence ratio): 1.03; 95% CI 1.02 to 1.03; and for attitude: aPR: 1.02; 95% CI 1.01 to 1.02), being married/cohabiting (for knowledge: aPR: 1.02; 95% CI 1.00 to 1.03; and for attitude: aPR: 1.01; 95% CI 1.00 to 1.02) and residing in the jungle (for knowledge: aPR: 1.14; 95% CI 1.12 to 1.16; and for attitude: aPR: 1.09; 95% CI 1.07 to 1.11) were associated with better knowledge and more preventive attitudes. In addition, we found that being an adolescent (for knowledge: aPR: 0.97; 95% CI 0.96 to 0.99; and for attitude: aPR: 0.99; 95% CI 0.97 to 0.99), and belonging to the Quechua ethnic group (for knowledge: aPR: 0.93; 95% CI 0.91 to 0.94; and for attitude: aPR: 0.98; 95% CI 0.97 to 0.99) were associated with a lower proportion of adequate knowledge and fewer preventive attitudes. CONCLUSIONS Our study found a high proportion of poor knowledge and few preventive attitudes towards dengue in the Peruvian population. That highlights the requirement to implement national strategies to educate people about dengue and promote preventive attitudes, considering the factors found.
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Affiliation(s)
| | | | | | - Shanelin Cisneros-Alcca
- Escuela Profesional de Medicina Humana, Universidad Nacional de San Antonio Abad del Cusco, Cusco, Peru
| | - Raysa M Benito-Vargas
- Escuela Profesional de Medicina Humana, Universidad Nacional de San Antonio Abad del Cusco, Cusco, Peru
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Performance of VIDAS® Diagnostic Tests for the Automated Detection of Dengue Virus NS1 Antigen and of Anti-Dengue Virus IgM and IgG Antibodies: A Multicentre, International Study. Diagnostics (Basel) 2023; 13:diagnostics13061137. [PMID: 36980445 PMCID: PMC10047366 DOI: 10.3390/diagnostics13061137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 03/13/2023] [Accepted: 03/14/2023] [Indexed: 03/19/2023] Open
Abstract
Dengue is a serious mosquito-transmitted disease caused by the dengue virus (DENV). Rapid and reliable diagnosis of DENV infection is urgently needed in dengue-endemic regions. We describe here the performance evaluation of the CE-marked VIDAS® dengue immunoassays developed for the automated detection of DENV NS1 antigen and anti-DENV IgM and IgG antibodies. A multicenter concordance study was conducted in 1296 patients from dengue-endemic regions in Asia, Latin America, and Africa. VIDAS® dengue results were compared to those of competitor enzyme-linked immunosorbent assays (ELISA). The VIDAS® dengue assays showed high precision (CV ≤ 10.7%) and limited cross-reactivity (≤15.4%) with other infections. VIDAS® DENGUE NS1 Ag showed high positive and negative percent agreement (92.8% PPA and 91.7% NPA) in acute patients within 0–5 days of symptom onset. VIDAS® Anti-DENGUE IgM and IgG showed a moderate-to-high concordance with ELISA (74.8% to 90.6%) in post-acute and recovery patients. PPA was further improved in combined VIDAS® NS1/IgM (96.4% in 0–5 days acute patients) and IgM/IgG (91.9% in post-acute patients) tests. Altogether, the VIDAS® dengue NS1, IgM, and IgG assays performed well, either alone or in combination, and should be suitable for the accurate diagnosis of DENV infection in dengue-endemic regions.
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Chaudhary N, Srivastava S, Gupta S, Menon MB, Patel AK. Dengue virus induced autophagy is mediated by HMGB1 and promotes viral propagation. Int J Biol Macromol 2023; 229:624-635. [PMID: 36587643 DOI: 10.1016/j.ijbiomac.2022.12.299] [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: 08/04/2022] [Revised: 12/15/2022] [Accepted: 12/22/2022] [Indexed: 12/30/2022]
Abstract
Dengue virus (DENV) exploits various cellular pathways including autophagy to assure enhanced virus propagation. The mechanisms of DENV mediated control of autophagy pathway are largely unknown. Our investigations have revealed a novel role for high-mobility group box1 protein (HMGB1) in regulation of cellular autophagy process in DENV-2 infected A549 cell line. While induction of autophagy by rapamycin treatment resulted in enhanced DENV-2 propagation, the blockade of autophagy flux with bafilomycin A1 suppressed viral replication. Furthermore, siRNA-mediated silencing of HMGB1 significantly abrogated dengue induced autophagy, while LPS induced HMGB1 expression counteracted these effects. Interestingly, silencing of HMGB1 showed reduction of BECN1 and stabilization of BCL-2 protein. On the contrary, LPS induction of HMGB1 resulted in enhanced BECN1 and reduction in BCL-2 levels. This study shows that the modulation of autophagy by DENV-2 is HMGB1/BECN1 dependent. In addition, glycyrrhizic acid (GA), a potent HMGB1 inhibitor suppressed autophagy as well as DENV-2 replication. Altogether, our data suggests that HMGB1 induces BECN1 dependent autophagy to promote DENV-2 replication.
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Affiliation(s)
- Nidhi Chaudhary
- Kusuma School of Biological Sciences, Indian Institute of Technology, Delhi 110016, India
| | - Shikha Srivastava
- Kusuma School of Biological Sciences, Indian Institute of Technology, Delhi 110016, India
| | - Sunny Gupta
- Kusuma School of Biological Sciences, Indian Institute of Technology, Delhi 110016, India
| | - Manoj B Menon
- Kusuma School of Biological Sciences, Indian Institute of Technology, Delhi 110016, India.
| | - Ashok Kumar Patel
- Kusuma School of Biological Sciences, Indian Institute of Technology, Delhi 110016, India.
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Biswal S, Patel SS, Rauscher M. Safety of Dengue Vaccine? Clin Infect Dis 2023; 76:771-772. [PMID: 36196620 PMCID: PMC9938735 DOI: 10.1093/cid/ciac808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Accepted: 09/30/2022] [Indexed: 11/14/2022] Open
Affiliation(s)
| | - Sanjay S Patel
- Takeda Pharmaceuticals International AG, Zurich, Switzerland
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Rimal S, Shrestha S, Pandey K, Nguyen TV, Bhandari P, Shah Y, Acharya D, Adhikari N, Rijal KR, Ghimire P, Takamatsu Y, Pandey BD, Fernandez S, Morita K, Ngwe Tun MM, Dumre SP. Co-Circulation of Dengue Virus Serotypes 1, 2, and 3 during the 2022 Dengue Outbreak in Nepal: A Cross-Sectional Study. Viruses 2023; 15:507. [PMID: 36851721 PMCID: PMC9958792 DOI: 10.3390/v15020507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 01/30/2023] [Accepted: 02/07/2023] [Indexed: 02/15/2023] Open
Abstract
The largest dengue outbreak in the history of Nepal occurred in 2022, with a significant number of casualties. It affected all 77 districts, with the nation's capital, Kathmandu (altitude 1300 m), being the hardest hit. However, the molecular epidemiology of this outbreak, including the dengue virus (DENV) serotype(s) responsible for this epidemic, remain unknown. Here, we report the epidemic trends, clinico-laboratory features, and virus serotypes and their viral load profiles that are associated with this outbreak in Nepal. Dengue-suspected febrile patients were investigated by routine laboratory, serological, and molecular tools, including a real-time quantitative polymerase chain reaction (qRT-PCR). Of the 538 dengue-suspected patients enrolled, 401 (74.5%) were diagnosed with dengue. Among these dengue cases, 129 (32.2%) patients who required hospital admission had significant associations with myalgia, rash, diarrhea, retro-orbital pain, bleeding, and abdominal pain. DENV-1, -2, and -3 were identified during the 2022 epidemic, with a predominance of DENV-1 (57.1%) and DENV-3 (32.1%), exhibiting a new serotype addition. We found that multiple serotypes circulated in 2022, with a higher frequency of hospitalizations, more severe dengue, and more deaths than in the past. Therefore, precise mapping of dengue and other related infections through integrated disease surveillance, evaluation of the dynamics of population-level immunity and virus evolution should be the urgent plans of action for evidence-based policy-making for dengue control and prevention in the country.
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Affiliation(s)
- Sandesh Rimal
- Central Department of Microbiology, Tribhuvan University, Kathmandu 44601, Nepal
| | - Sabin Shrestha
- Central Department of Microbiology, Tribhuvan University, Kathmandu 44601, Nepal
| | - Kishor Pandey
- Central Department of Zoology, Tribhuvan University, Kathmandu 44601, Nepal
| | - Thanh Vu Nguyen
- Institute of Tropical Medicine, DEJIMA Infectious Disease Research Allience, Nagasaki University, Nagasaki 852-8523, Japan
| | - Parmananda Bhandari
- Sukraraj Tropical and Infectious Diseases Hospital, Teku, Kathmandu 44600, Nepal
| | | | - Dhiraj Acharya
- Cleveland Clinic, Florida Research and Innovation Center, Port Saint Lucie, FL 34987, USA
| | - Nabaraj Adhikari
- Central Department of Microbiology, Tribhuvan University, Kathmandu 44601, Nepal
| | - Komal Raj Rijal
- Central Department of Microbiology, Tribhuvan University, Kathmandu 44601, Nepal
| | - Prakash Ghimire
- Central Department of Microbiology, Tribhuvan University, Kathmandu 44601, Nepal
| | - Yuki Takamatsu
- Institute of Tropical Medicine, DEJIMA Infectious Disease Research Allience, Nagasaki University, Nagasaki 852-8523, Japan
| | - Basu Dev Pandey
- Department of Molecular Epidemiology, Institute of Tropical Medicine, Nagasaki University, Nagasaki 852-8523, Japan
| | - Stefan Fernandez
- Armed Forces Research Institute of Medical Sciences (AFRIMS), Bangkok 10400, Thailand
| | - Kouichi Morita
- Institute of Tropical Medicine, DEJIMA Infectious Disease Research Allience, Nagasaki University, Nagasaki 852-8523, Japan
| | - Mya Myat Ngwe Tun
- Institute of Tropical Medicine, DEJIMA Infectious Disease Research Allience, Nagasaki University, Nagasaki 852-8523, Japan
| | - Shyam Prakash Dumre
- Central Department of Microbiology, Tribhuvan University, Kathmandu 44601, Nepal
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A Six Years (2010-2016) Longitudinal Survey of the Four Serotypes of Dengue Viruses in Lao PDR. Microorganisms 2023; 11:microorganisms11020243. [PMID: 36838207 PMCID: PMC9959689 DOI: 10.3390/microorganisms11020243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 12/16/2022] [Accepted: 01/09/2023] [Indexed: 01/21/2023] Open
Abstract
Dengue fever is the most prevalent arthropod-borne viral infection of humans in tropical and subtropical countries. Since 1979, dengue has been reported to be endemic in the Lao People's Democratic Republic (PDR), as in many countries in Southeast Asia, with a complex circulation of the four dengue viruses' serotypes (DENV-1 to DENV-4). By sequencing the complete envelope protein, we explored a panel of samples from five Lao Provinces (Vientiane capital, Luangprabang, Bolikhamxay, Saravane, Attapeu) to enrich knowledge about the co-circulation of DENVs in Lao PDR between 2010 and 2016. Phylogenetic analyses highlighted the specific circulation of DENV-1 genotype I, DENV-2 genotype Asian I, DENV-4 genotype I and the co-circulation of DENV-3 genotype II and III. The continuous co-circulation of the four serotypes was underlined, with genotype or cluster shifts among DENV-3 and DENV-1. These data suggested the emergence or re-emergence of DENV strains associated with epidemic events, potentially linked to the exchanges within the territory and with neighboring countries. Indeed, the increasing local or regional connections favored the dissemination of new isolates or new clusters around the country. Since 2012, the surveillance and alert system created in Vientiane capital by the Institut Pasteur du Laos appears to be a strategic tool for monitoring the circulation of the four serotypes, especially in this endemic country, and allows for improving dengue epidemiological knowledge to anticipate epidemic events better.
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Barboza LA, Chou-Chen SW, Vásquez P, García YE, Calvo JG, Hidalgo HG, Sanchez F. Assessing dengue fever risk in Costa Rica by using climate variables and machine learning techniques. PLoS Negl Trop Dis 2023; 17:e0011047. [PMID: 36638136 PMCID: PMC9879398 DOI: 10.1371/journal.pntd.0011047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Revised: 01/26/2023] [Accepted: 12/20/2022] [Indexed: 01/14/2023] Open
Abstract
Dengue fever is a vector-borne disease affecting millions yearly, mostly in tropical and subtropical countries. Driven mainly by social and environmental factors, dengue incidence and geographical expansion have increased in recent decades. Therefore, understanding how climate variables drive dengue outbreaks is challenging and a problem of interest for decision-makers that could aid in improving surveillance and resource allocation. Here, we explore the effect of climate variables on relative dengue risk in 32 cantons of interest for public health authorities in Costa Rica. Relative dengue risk is forecast using a Generalized Additive Model for location, scale, and shape and a Random Forest approach. Models use a training period from 2000 to 2020 and predicted climatic variables obtained with a vector auto-regressive model. Results show reliable projections, and climate variables predictions allow for a prospective instead of a retrospective study.
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Affiliation(s)
- Luis A. Barboza
- Centro de Investigación en Matemática Pura y Aplicada - Escuela de Matemática, Universidad de Costa Rica, San José, Costa Rica
| | - Shu-Wei Chou-Chen
- Centro de Investigación en Matemática Pura y Aplicada - Escuela de Estadística, Universidad de Costa Rica, San José, Costa Rica
| | - Paola Vásquez
- Centro de Investigación en Matemática Pura y Aplicada, Universidad de Costa Rica, San José, Costa Rica
| | - Yury E. García
- Centro de Investigación en Matemática Pura y Aplicada, Universidad de Costa Rica, San José, Costa Rica
- Department of Public Health Sciences, University of California Davis, California, United States of America
- * E-mail:
| | - Juan G. Calvo
- Centro de Investigación en Matemática Pura y Aplicada - Escuela de Matemática, Universidad de Costa Rica, San José, Costa Rica
| | - Hugo G. Hidalgo
- Centro de Investigaciones Geofísicas and Escuela de Física, Universidad de Costa Rica, San José, Costa Rica
| | - Fabio Sanchez
- Centro de Investigación en Matemática Pura y Aplicada - Escuela de Matemática, Universidad de Costa Rica, San José, Costa Rica
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Wardhani P, Yohan B, Tanzilia M, Sunari EP, Wrahatnala BJ, Hakim FKN, Rohman A, Husada D, Hayati RF, Santoso MS, Sievers JTO, Aryati A, Sasmono RT. Genetic characterization of dengue virus 4 complete genomes from East Java, Indonesia. Virus Genes 2023; 59:36-44. [PMID: 36266496 PMCID: PMC9584228 DOI: 10.1007/s11262-022-01942-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Accepted: 10/05/2022] [Indexed: 01/13/2023]
Abstract
Dengue is an endemic arboviral disease with continuous transmission in Indonesia for more than five decades. A recent outbreak in Jember, East Java province, demonstrated the predominance of DENV-4, a serotype known for its low global spread and limited transmission. While epidemiological factors such as new serotype introduction and lacking herd immunity may explain its predominance, viral factors may also contribute. Using next-generation sequencing, we generated 13 representative complete genomes of DENV-4 responsible for the outbreak. Phylogenetic and evolutionary analyses on complete genomes were performed to understand the spatial and temporal dynamics of the viruses. Further analyses were done to study amino acid variations in DENV genes, as well as the potential events of recombination and selection pressure within the genomes. We revealed the DENV-4 genetic factors that may lead to its predominance in the 2019 Jember dengue outbreak. A combination of selection pressure and mutational genetic changes may contribute to the DENV-4 predominance in East Java, Indonesia. The possible intra-serotype recombination events involving the non-structural protein 5 (NS5) gene were also observed. Altogether, these genetic factors may act as additional factors behind the complex dengue outbreak mechanism.
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Affiliation(s)
- Puspa Wardhani
- grid.440745.60000 0001 0152 762XDepartment of Clinical Pathology, Faculty of Medicine, Universitas Airlangga, Surabaya, 60286 Indonesia ,grid.440745.60000 0001 0152 762XInstitute for Tropical Diseases, Universitas Airlangga, Surabaya, 60115 Indonesia ,Dr. Soetomo General Academic Hospital, Surabaya, 60286 Indonesia ,grid.440745.60000 0001 0152 762XPost Graduate School, Universitas Airlangga, Surabaya, 60286 Indonesia
| | - Benediktus Yohan
- Eijkman Research Center for Molecular Biology, National Agency for Research and Innovation, Jakarta, 10430 Indonesia ,grid.4991.50000 0004 1936 8948Department of Biochemistry, University of Oxford, Oxford, OX1 3QU UK
| | - Mayfanny Tanzilia
- grid.440745.60000 0001 0152 762XDepartment of Clinical Pathology, Faculty of Medicine, Universitas Airlangga, Surabaya, 60286 Indonesia
| | - Eka Putri Sunari
- grid.440745.60000 0001 0152 762XDepartment of Clinical Pathology, Faculty of Medicine, Universitas Airlangga, Surabaya, 60286 Indonesia
| | - Billy J. Wrahatnala
- grid.440745.60000 0001 0152 762XDepartment of Clinical Pathology, Faculty of Medicine, Universitas Airlangga, Surabaya, 60286 Indonesia
| | - Faradila K. N. Hakim
- grid.440745.60000 0001 0152 762XDepartment of Clinical Pathology, Faculty of Medicine, Universitas Airlangga, Surabaya, 60286 Indonesia
| | - Ali Rohman
- grid.440745.60000 0001 0152 762XDepartment of Chemistry, Faculty of Science and Technology, Universitas Airlangga, Surabaya, 60115 Indonesia
| | - Dominicus Husada
- Dr. Soetomo General Academic Hospital, Surabaya, 60286 Indonesia ,grid.440745.60000 0001 0152 762XDepartment of Pediatric, Faculty of Medicine Universitas Airlangga, Surabaya, 60286 Indonesia
| | - Rahma F. Hayati
- Eijkman Research Center for Molecular Biology, National Agency for Research and Innovation, Jakarta, 10430 Indonesia
| | - Marsha S. Santoso
- Eijkman Research Center for Molecular Biology, National Agency for Research and Innovation, Jakarta, 10430 Indonesia
| | - Justus T. O. Sievers
- Eijkman Research Center for Molecular Biology, National Agency for Research and Innovation, Jakarta, 10430 Indonesia
| | - A. Aryati
- grid.440745.60000 0001 0152 762XDepartment of Clinical Pathology, Faculty of Medicine, Universitas Airlangga, Surabaya, 60286 Indonesia ,grid.440745.60000 0001 0152 762XInstitute for Tropical Diseases, Universitas Airlangga, Surabaya, 60115 Indonesia ,Dr. Soetomo General Academic Hospital, Surabaya, 60286 Indonesia
| | - R. Tedjo Sasmono
- Eijkman Research Center for Molecular Biology, National Agency for Research and Innovation, Jakarta, 10430 Indonesia
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Morrison AC, Paz-Soldan VA, Vazquez-Prokopec GM, Lambrechts L, Elson WH, Barrera P, Astete H, Briesemeister V, Leguia M, Jenkins SA, Long KC, Kawiecki AB, Reiner RC, Perkins TA, Lloyd AL, Waller LA, Hontz RD, Stoddard ST, Barker CM, Kitron U, Elder JP, Rothman AL, Scott TW. Quantifying heterogeneities in arbovirus transmission: Description of the rationale and methodology for a prospective longitudinal study of dengue and Zika virus transmission in Iquitos, Peru (2014-2019). PLoS One 2023; 18:e0273798. [PMID: 36730229 PMCID: PMC9894416 DOI: 10.1371/journal.pone.0273798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Accepted: 08/15/2022] [Indexed: 02/03/2023] Open
Abstract
Current knowledge of dengue virus (DENV) transmission provides only a partial understanding of a complex and dynamic system yielding a public health track record that has more failures than successes. An important part of the problem is that the foundation for contemporary interventions includes a series of longstanding, but untested, assumptions based on a relatively small portion of the human population; i.e., people who are convenient to study because they manifest clinically apparent disease. Approaching dengue from the perspective of people with overt illness has produced an extensive body of useful literature. It has not, however, fully embraced heterogeneities in virus transmission dynamics that are increasingly recognized as key information still missing in the struggle to control the most important insect-transmitted viral infection of humans. Only in the last 20 years have there been significant efforts to carry out comprehensive longitudinal dengue studies. This manuscript provides the rationale and comprehensive, integrated description of the methodology for a five-year longitudinal cohort study based in the tropical city of Iquitos, in the heart of the Peruvian Amazon. Primary data collection for this study was completed in 2019. Although some manuscripts have been published to date, our principal objective here is to support subsequent publications by describing in detail the structure, methodology, and significance of a specific research program. Our project was designed to study people across the entire continuum of disease, with the ultimate goal of quantifying heterogeneities in human variables that affect DENV transmission dynamics and prevention. Because our study design is applicable to other Aedes transmitted viruses, we used it to gain insights into Zika virus (ZIKV) transmission when during the project period ZIKV was introduced and circulated in Iquitos. Our prospective contact cluster investigation design was initiated by detecttion of a person with a symptomatic DENV infection and then followed that person's immediate contacts. This allowed us to monitor individuals at high risk of DENV infection, including people with clinically inapparent and mild infections that are otherwise difficult to detect. We aimed to fill knowledge gaps by defining the contribution to DENV transmission dynamics of (1) the understudied majority of DENV-infected people with inapparent and mild infections and (2) epidemiological, entomological, and socio-behavioral sources of heterogeneity. By accounting for factors underlying variation in each person's contribution to transmission we sought to better determine the type and extent of effort needed to better prevent virus transmission and disease.
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Affiliation(s)
- Amy C. Morrison
- Department of Pathology, Microbiology, and Immunology, School of Veterinary Medicine, University of California, Davis, Davis, California, United States of America
- * E-mail: ,
| | - Valerie A. Paz-Soldan
- Department of Tropical Medicine, Tulane University School of Public Health and Tropical Medicine, New Orleans, Lousiana, United States of America
| | | | - Louis Lambrechts
- Institut Pasteur, Université Paris Cité, CNRS UMR2000, Insect-Virus Interactions Unit, Paris, France
| | - William H. Elson
- Department of Entomology and Nematology, University of California Davis, Davis, California, United States of America
| | - Patricia Barrera
- Department of Entomology and Nematology, University of California Davis, Davis, California, United States of America
- Genomics Laboratory, Pontificia Universidad Católica del Peru, Lima, Peru
| | - Helvio Astete
- Virology and Emerging Infections Department, United States Naval Medical Research Unit No. 6, Lima, Peru
- Department of Entomology, United States Naval Medical Research Unit No. 6, Lima, Peru
| | - Veronica Briesemeister
- Department of Entomology and Nematology, University of California Davis, Davis, California, United States of America
| | - Mariana Leguia
- Genomics Laboratory, Pontificia Universidad Católica del Peru, Lima, Peru
| | - Sarah A. Jenkins
- Virology and Emerging Infections Department, United States Naval Medical Research Unit No. 6, Lima, Peru
| | - Kanya C. Long
- Department of Family Medicine and Public Health, University of California San Diego School of Medicine, La Jolla, California, United States of America
| | - Anna B. Kawiecki
- Department of Pathology, Microbiology, and Immunology, School of Veterinary Medicine, University of California, Davis, Davis, California, United States of America
| | - Robert C. Reiner
- University of Washington, Seattle, Washington, United States of America
| | - T. Alex Perkins
- Department of Biological Sciences and Eck Institute for Global Health, University of Notre Dame, Notre Dame, Indiana, United States of America
| | - Alun L. Lloyd
- Biomathematics Graduate Program and Department of Mathematics, North Carolina State University, Raleigh, North Carolina, United States of America
| | - Lance A. Waller
- Department of Biostatistics and Bioinformatics, Rollins School of Public Health, Emory University, Atlanta, Georgia, United States of America
| | - Robert D. Hontz
- Virology and Emerging Infections Department, United States Naval Medical Research Unit No. 6, Lima, Peru
| | - Steven T. Stoddard
- School of Public Health, San Diego State University, San Diego, California, United States of America
| | - Christopher M. Barker
- Department of Pathology, Microbiology, and Immunology, School of Veterinary Medicine, University of California, Davis, Davis, California, United States of America
| | - Uriel Kitron
- Institut Pasteur, Université Paris Cité, CNRS UMR2000, Insect-Virus Interactions Unit, Paris, France
| | - John P. Elder
- School of Public Health, San Diego State University, San Diego, California, United States of America
| | - Alan L. Rothman
- Institute for Immunology and Informatics and Department of Cell and Molecular Biology, University of Rhode Island, Providence, Rhode Island, United States of America
| | - Thomas W. Scott
- Department of Entomology and Nematology, University of California Davis, Davis, California, United States of America
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Olmo RP, Todjro YMH, Aguiar ERGR, de Almeida JPP, Ferreira FV, Armache JN, de Faria IJS, Ferreira AGA, Amadou SCG, Silva ATS, de Souza KPR, Vilela APP, Babarit A, Tan CH, Diallo M, Gaye A, Paupy C, Obame-Nkoghe J, Visser TM, Koenraadt CJM, Wongsokarijo MA, Cruz ALC, Prieto MT, Parra MCP, Nogueira ML, Avelino-Silva V, Mota RN, Borges MAZ, Drumond BP, Kroon EG, Recker M, Sedda L, Marois E, Imler JL, Marques JT. Mosquito vector competence for dengue is modulated by insect-specific viruses. Nat Microbiol 2023; 8:135-149. [PMID: 36604511 DOI: 10.1038/s41564-022-01289-4] [Citation(s) in RCA: 32] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Accepted: 11/16/2022] [Indexed: 01/07/2023]
Abstract
Aedes aegypti and A. albopictus mosquitoes are the main vectors for dengue virus (DENV) and other arboviruses, including Zika virus (ZIKV). Understanding the factors that affect transmission of arboviruses from mosquitoes to humans is a priority because it could inform public health and targeted interventions. Reasoning that interactions among viruses in the vector insect might affect transmission, we analysed the viromes of 815 urban Aedes mosquitoes collected from 12 countries worldwide. Two mosquito-specific viruses, Phasi Charoen-like virus (PCLV) and Humaita Tubiacanga virus (HTV), were the most abundant in A. aegypti worldwide. Spatiotemporal analyses of virus circulation in an endemic urban area revealed a 200% increase in chances of having DENV in wild A. aegypti mosquitoes when both HTV and PCLV were present. Using a mouse model in the laboratory, we showed that the presence of HTV and PCLV increased the ability of mosquitoes to transmit DENV and ZIKV to a vertebrate host. By transcriptomic analysis, we found that in DENV-infected mosquitoes, HTV and PCLV block the downregulation of histone H4, which we identify as an important proviral host factor in vivo.
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Affiliation(s)
- Roenick P Olmo
- Department of Biochemistry and Immunology, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil.,Université de Strasbourg, CNRS UPR9022, INSERM U1257, Strasbourg, France
| | - Yaovi M H Todjro
- Department of Biochemistry and Immunology, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Eric R G R Aguiar
- Department of Biochemistry and Immunology, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil.,Department of Biological Sciences (DCB), Center of Biotechnology and Genetics (CBG), State University of Santa Cruz (UESC), Ilhéus, Brazil
| | - João Paulo P de Almeida
- Department of Biochemistry and Immunology, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Flávia V Ferreira
- Department of Biochemistry and Immunology, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Juliana N Armache
- Department of Biochemistry and Immunology, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Isaque J S de Faria
- Department of Biochemistry and Immunology, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Alvaro G A Ferreira
- Mosquitos Vetores: Endossimbiontes e Interação Patógeno-Vetor, Instituto René Rachou-Fiocruz, Belo Horizonte, Minas Gerais, Brazil
| | - Siad C G Amadou
- Department of Biochemistry and Immunology, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Ana Teresa S Silva
- Department of Biochemistry and Immunology, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Kátia P R de Souza
- Department of Biochemistry and Immunology, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Ana Paula P Vilela
- Department of Biochemistry and Immunology, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Antinea Babarit
- Université de Strasbourg, CNRS UPR9022, INSERM U1257, Strasbourg, France
| | - Cheong H Tan
- Environmental Health Institute, Vector Biology and Control Division, National Environment Agency, Singapore, Singapore
| | - Mawlouth Diallo
- Pôle de Zoologie Médicale, Institut Pasteur de Dakar, Dakar, Senegal
| | - Alioune Gaye
- Pôle de Zoologie Médicale, Institut Pasteur de Dakar, Dakar, Senegal
| | - Christophe Paupy
- Maladies Infectieuses et Vecteurs: Écologie, Génétique, Évolution et Contrôle (MIVEGEC); Université de Montpellier, Institut de Recherche pour le Développement, CNRS, Montpellier, France
| | - Judicaël Obame-Nkoghe
- Laboratoire de Biologie Moléculaire et Cellulaire, Département de Biologie, Université des Sciences et Techniques de Masuku, Franceville, Gabon.,Écologie des Systèmes Vectoriels, Centre Interdisciplinaire de Recherches Médicales de Franceville, Franceville, Gabon
| | - Tessa M Visser
- Laboratory of Entomology, Wageningen University and Research, Wageningen, the Netherlands
| | | | | | - Ana Luiza C Cruz
- Department of Microbiology, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, Brazil
| | - Mariliza T Prieto
- Secretaria Municipal de Saúde, Seção de Controle de Vetores, Santos City Hall, Santos, Brazil
| | - Maisa C P Parra
- Laboratory of Research in Virology, Faculdade de Medicina de São José do Rio Preto (FAMERP), São José do Rio Preto, Brazil
| | - Maurício L Nogueira
- Laboratory of Research in Virology, Faculdade de Medicina de São José do Rio Preto (FAMERP), São José do Rio Preto, Brazil.,Departament of Pathology, University of Texas Medical Branch, Galveston, TX, USA
| | - Vivian Avelino-Silva
- Department of Infectious and Parasitic Diseases, Faculdade de Medicina da Universidade de São Paulo (FMUSP), Cerqueira Cesar, Brazil
| | - Renato N Mota
- Health Surveillance (Zoonosis Control), Brumadinho City Hall, Brumadinho, Brazil
| | - Magno A Z Borges
- Center for Biological and Health Sciences, Universidade Estadual de Montes Claros, Montes Claros, Brazil
| | - Betânia P Drumond
- Department of Microbiology, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, Brazil
| | - Erna G Kroon
- Department of Microbiology, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, Brazil
| | - Mario Recker
- Centre for Ecology and Conservation, University of Exeter, Penryn Campus, Penryn, UK.,Institute of Tropical Medicine, Universitätsklinikum Tübingen, Tübingen, Germany
| | - Luigi Sedda
- Lancaster Medical School, Lancaster University, Lancaster, UK
| | - Eric Marois
- Université de Strasbourg, CNRS UPR9022, INSERM U1257, Strasbourg, France
| | - Jean-Luc Imler
- Université de Strasbourg, CNRS UPR9022, INSERM U1257, Strasbourg, France
| | - João T Marques
- Department of Biochemistry and Immunology, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil. .,Université de Strasbourg, CNRS UPR9022, INSERM U1257, Strasbourg, France.
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47
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Ong J, Ho SH, Soh SXH, Wong Y, Ng Y, Vasquez K, Lai YL, Setoh YX, Chong CS, Lee V, Wong JCC, Tan CH, Sim S, Ng LC, Lim JT. Assessing the efficacy of male Wolbachia-infected mosquito deployments to reduce dengue incidence in Singapore: study protocol for a cluster-randomized controlled trial. Trials 2022; 23:1023. [PMID: 36528590 PMCID: PMC9758775 DOI: 10.1186/s13063-022-06976-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Accepted: 12/02/2022] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND Dengue is a severe environmental public health challenge in tropical and subtropical regions. In Singapore, decreasing seroprevalence and herd immunity due to successful vector control has paradoxically led to increased transmission potential of the dengue virus. We have previously demonstrated that incompatible insect technique coupled with sterile insect technique (IIT-SIT), which involves the release of X-ray-irradiated male Wolbachia-infected mosquitoes, reduced the Aedes aegypti population by 98% and dengue incidence by 88%. This novel vector control tool is expected to be able to complement current vector control to mitigate the increasing threat of dengue on a larger scale. We propose a multi-site protocol to study the efficacy of IIT-SIT at reducing dengue incidence. METHODS/DESIGN The study is designed as a parallel, two-arm, non-blinded cluster-randomized (CR) controlled trial to be conducted in high-rise public housing estates in Singapore, an equatorial city-state. The aim is to determine whether large-scale deployment of male Wolbachia-infected Ae. aegypti mosquitoes can significantly reduce dengue incidence in intervention clusters. We will use the CR design, with the study area comprising 15 clusters with a total area of 10.9 km2, covering approximately 722,204 residents in 1713 apartment blocks. Eight clusters will be randomly selected to receive the intervention, while the other seven will serve as non-intervention clusters. Intervention efficacy will be estimated through two primary endpoints: (1) odds ratio of Wolbachia exposure distribution (i.e., probability of living in an intervention cluster) among laboratory-confirmed reported dengue cases compared to test-negative controls and (2) laboratory-confirmed reported dengue counts normalized by population size in intervention versus non-intervention clusters. DISCUSSION This study will provide evidence from a multi-site, randomized controlled trial for the efficacy of IIT-SIT in reducing dengue incidence. The trial will provide valuable information to estimate intervention efficacy for this novel vector control approach and guide plans for integration into national vector control programs in dengue-endemic settings. TRIAL REGISTRATION ClinicalTrials.gov, identifier: NCT05505682 . Registered on 16 August 2022. Retrospectively registered.
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Affiliation(s)
- Janet Ong
- Environmental Health Institute, National Environment Agency, Singapore, Singapore
| | - Soon Hoe Ho
- Environmental Health Institute, National Environment Agency, Singapore, Singapore.
| | - Stacy Xin Hui Soh
- Environmental Health Institute, National Environment Agency, Singapore, Singapore
| | - Yvonne Wong
- Environmental Health Institute, National Environment Agency, Singapore, Singapore
| | - Youming Ng
- Environmental Health Institute, National Environment Agency, Singapore, Singapore
| | - Kathryn Vasquez
- Environmental Health Institute, National Environment Agency, Singapore, Singapore
| | - Yee Ling Lai
- Environmental Health Institute, National Environment Agency, Singapore, Singapore
| | - Yin Xiang Setoh
- Environmental Health Institute, National Environment Agency, Singapore, Singapore
| | - Chee-Seng Chong
- Environmental Health Institute, National Environment Agency, Singapore, Singapore
| | - Vernon Lee
- Communicable Diseases Division, Ministry of Health, Singapore, Singapore
| | | | - Cheong Huat Tan
- Environmental Health Institute, National Environment Agency, Singapore, Singapore
| | - Shuzhen Sim
- Environmental Health Institute, National Environment Agency, Singapore, Singapore
| | - Lee Ching Ng
- Environmental Health Institute, National Environment Agency, Singapore, Singapore
| | - Jue Tao Lim
- Environmental Health Institute, National Environment Agency, Singapore, Singapore
- Saw Swee Hock School of Public Health, National University of Singapore, Singapore, Singapore
- Lee Kong Chian School of Medicine, Nanyang Technological University Novena Campus, Singapore, Singapore
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48
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Manna S, Satapathy P, Bora I, Padhi BK. Dengue outbreaks in South Asia amid Covid-19: Epidemiology, transmission, and mitigation strategies. Front Public Health 2022; 10:1060043. [PMID: 36589966 PMCID: PMC9797821 DOI: 10.3389/fpubh.2022.1060043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Accepted: 11/25/2022] [Indexed: 12/23/2022] Open
Affiliation(s)
- Subhanwita Manna
- Department of Public Health, Indian Institute of Public Health, New Delhi, India
| | - Prakasini Satapathy
- Department of Virology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Ishani Bora
- Department of Virology, Postgraduate Institute of Medical Education and Research, Chandigarh, India,*Correspondence: Ishani Bora
| | - Bijaya Kumar Padhi
- Department of Community Medicine and School of Public Health, Postgraduate Institute of Medical Education and Research, Chandigarh, India,Bijaya Kumar Padhi
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49
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Raju N, Zhan X, Das S, Karwal L, Dean HJ, Crowe JE, Carnahan RH, Georgiev IS. Neutralization fingerprinting technology for characterizing polyclonal antibody responses to dengue vaccines. Cell Rep 2022; 41:111807. [PMID: 36516766 DOI: 10.1016/j.celrep.2022.111807] [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: 12/21/2021] [Revised: 09/08/2022] [Accepted: 11/17/2022] [Indexed: 12/14/2022] Open
Abstract
Dengue is a major public health threat. There are four dengue virus (DENV) serotypes; therefore, efforts are focused on developing safe and effective tetravalent DENV vaccines. While neutralizing antibodies contribute to protective immunity, there are still important gaps in understanding of immune responses elicited by dengue infection and vaccination. To that end, here, we develop a computational modeling framework based on the concept of antibody-virus neutralization fingerprints in order to characterize samples from clinical studies of TAK-003, a tetravalent vaccine candidate currently in phase 3 trials. Our results suggest a similarity of neutralizing antibody specificities in baseline-seronegative individuals. In contrast, amplification of pre-existing neutralizing antibody specificities is predicted for baseline-seropositive individuals, thus quantifying the role of immunologic imprinting in driving antibody responses to DENV vaccines. The neutralization fingerprinting analysis framework presented here can contribute to understanding dengue immune correlates of protection and help guide further vaccine development and optimization.
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Affiliation(s)
- Nagarajan Raju
- Vanderbilt Vaccine Center, Vanderbilt University Medical Center, Nashville, TN 37232, USA; Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - Xiaoyan Zhan
- Vanderbilt Vaccine Center, Vanderbilt University Medical Center, Nashville, TN 37232, USA; Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - Subash Das
- Vaccine Business Unit, Takeda Pharmaceuticals USA, 40 Landsdowne Street, Cambridge, MA 02139, USA
| | - Lovkesh Karwal
- Vaccine Business Unit, Takeda Pharmaceuticals USA, 40 Landsdowne Street, Cambridge, MA 02139, USA
| | - Hansi J Dean
- Vaccine Business Unit, Takeda Pharmaceuticals USA, 40 Landsdowne Street, Cambridge, MA 02139, USA
| | - James E Crowe
- Vanderbilt Vaccine Center, Vanderbilt University Medical Center, Nashville, TN 37232, USA; Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, TN 37232, USA; Department of Pediatrics, Vanderbilt University Medical Center, Nashville, TN 37232, USA; Vanderbilt Institute for Infection, Immunology, and Inflammation, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - Robert H Carnahan
- Vanderbilt Vaccine Center, Vanderbilt University Medical Center, Nashville, TN 37232, USA; Department of Pediatrics, Vanderbilt University Medical Center, Nashville, TN 37232, USA.
| | - Ivelin S Georgiev
- Vanderbilt Vaccine Center, Vanderbilt University Medical Center, Nashville, TN 37232, USA; Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, TN 37232, USA; Vanderbilt Institute for Infection, Immunology, and Inflammation, Vanderbilt University Medical Center, Nashville, TN 37232, USA; Department of Electrical Engineering and Computer Science, Vanderbilt University, Nashville, TN 37232, USA; Center for Structural Biology, Vanderbilt University, Nashville, TN 37232, USA; Program in Computational Microbiology and Immunology, Vanderbilt University Medical Center, Nashville, TN 37232, USA.
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50
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Chen L, Zhang X, Guo X, Peng W, Zhu Y, Wang Z, Yu X, Shi H, Li Y, Zhang L, Wang L, Wang P, Cheng G. Neighboring mutation-mediated enhancement of dengue virus infectivity and spread. EMBO Rep 2022; 23:e55671. [PMID: 36197120 PMCID: PMC9638853 DOI: 10.15252/embr.202255671] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Revised: 09/06/2022] [Accepted: 09/07/2022] [Indexed: 10/07/2023] Open
Abstract
Frequent turnover of dengue virus (DENV) clades is one of the major forces driving DENV persistence and prevalence. In this study, we assess the fitness advantage of nine stable substitutions within the envelope (E) protein of DENV serotypes. Two tandem neighboring substitutions, threonine to lysine at the 226th (T226K) and glycine to glutamic acid at the 228th (G228E) residues in the DENV2 Asian I genotype, enhance virus infectivity in either mosquitoes or mammalian hosts, thereby promoting clades turnover and dengue epidemics. Mechanistic studies indicate that the substitution-mediated polarity changes in these two residues increase the binding affinity of E for host C-type lectins. Accordingly, we predict that a G228E substitution could potentially result in a forthcoming epidemic of the DENV2 Cosmopolitan genotype. Investigations into the substitutions associated with DENV fitness in hosts may offer mechanistic insights into dengue prevalence, thus providing a warning of potential epidemics in the future.
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Affiliation(s)
- Lu Chen
- Tsinghua‐Peking Joint Center for Life Sciences, School of MedicineTsinghua UniversityBeijingChina
| | - Xianwen Zhang
- Institute of Infectious DiseasesShenzhen Bay LaboratoryShenzhenChina
| | - Xuan Guo
- Tsinghua‐Peking Joint Center for Life Sciences, School of MedicineTsinghua UniversityBeijingChina
| | - Wenyu Peng
- Tsinghua‐Peking Joint Center for Life Sciences, School of MedicineTsinghua UniversityBeijingChina
| | - Yibin Zhu
- Tsinghua‐Peking Joint Center for Life Sciences, School of MedicineTsinghua UniversityBeijingChina
| | - Zhaoyang Wang
- Tsinghua‐Peking Joint Center for Life Sciences, School of MedicineTsinghua UniversityBeijingChina
| | - Xi Yu
- Tsinghua‐Peking Joint Center for Life Sciences, School of MedicineTsinghua UniversityBeijingChina
| | - Huicheng Shi
- Tsinghua‐Peking Joint Center for Life Sciences, School of MedicineTsinghua UniversityBeijingChina
| | - Yuhan Li
- Tsinghua‐Peking Joint Center for Life Sciences, School of MedicineTsinghua UniversityBeijingChina
| | - Liming Zhang
- Tsinghua‐Peking Joint Center for Life Sciences, School of MedicineTsinghua UniversityBeijingChina
| | - Lei Wang
- Institute of Infectious DiseasesShenzhen Bay LaboratoryShenzhenChina
| | - Penghua Wang
- Department of Immunology, School of Medicinethe University of Connecticut Health CenterFarmingtonCTUSA
| | - Gong Cheng
- Tsinghua‐Peking Joint Center for Life Sciences, School of MedicineTsinghua UniversityBeijingChina
- Institute of Infectious DiseasesShenzhen Bay LaboratoryShenzhenChina
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