1
|
Man O, Kraay A, Thomas R, Trostle J, Lee GO, Robbins C, Morrison AC, Coloma J, Eisenberg JNS. Characterizing dengue transmission in rural areas: A systematic review. PLoS Negl Trop Dis 2023; 17:e0011333. [PMID: 37289678 PMCID: PMC10249895 DOI: 10.1371/journal.pntd.0011333] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023] Open
Abstract
Dengue has historically been considered an urban disease associated with dense human populations and the built environment. Recently, studies suggest increasing dengue virus (DENV) transmission in rural populations. It is unclear whether these reports reflect recent spread into rural areas or ongoing transmission that was previously unnoticed, and what mechanisms are driving this rural transmission. We conducted a systematic review to synthesize research on dengue in rural areas and apply this knowledge to summarize aspects of rurality used in current epidemiological studies of DENV transmission given changing and mixed environments. We described how authors defined rurality and how they defined mechanisms for rural dengue transmission. We systematically searched PubMed, Web of Science, and Embase for articles evaluating dengue prevalence or cumulative incidence in rural areas. A total of 106 articles published between 1958 and 2021 met our inclusion criteria. Overall, 56% (n = 22) of the 48 estimates that compared urban and rural settings reported rural dengue incidence as being as high or higher than in urban locations. In some rural areas, the force of infection appears to be increasing over time, as measured by increasing seroprevalence in children and thus likely decreasing age of first infection, suggesting that rural dengue transmission may be a relatively recent phenomenon. Authors characterized rural locations by many different factors, including population density and size, environmental and land use characteristics, and by comparing their context to urban areas. Hypothesized mechanisms for rural dengue transmission included travel, population size, urban infrastructure, vector and environmental factors, among other mechanisms. Strengthening our understanding of the relationship between rurality and dengue will require a more nuanced definition of rurality from the perspective of DENV transmission. Future studies should focus on characterizing details of study locations based on their environmental features, exposure histories, and movement dynamics to identify characteristics that may influence dengue transmission.
Collapse
Affiliation(s)
- Olivia Man
- Department of Epidemiology, University of Michigan, Ann Arbor, Michigan, United States of America
| | - Alicia Kraay
- Department of Kinesiology and Community Health, University of Illinois, Urbana, Illinois, United States of America
- Institution for Genomic Biology, University of Illinois, Urbana, Illinois, United States of America
| | - Ruth Thomas
- Department of Epidemiology, University of Michigan, Ann Arbor, Michigan, United States of America
| | - James Trostle
- Department of Anthropology, Trinity College, Hartford, Connecticut, United States of America
| | - Gwenyth O. Lee
- Rutgers Global Health Institute, Rutgers, The State University of New Jersey, New Brunswick, New Jersey, United States of America
- Rutgers Department of Biostatistics and Epidemiology, School of Public Health, Rutgers, The State University of New Jersey, New Brunswick, New Jersey, United States of America
| | - Charlotte Robbins
- Department of Anthropology, Trinity College, Hartford, Connecticut, United States of America
| | - Amy C. Morrison
- Department of Pathology, Microbiology, and Immunology, School of Veterinary Medicine, University of California, Davis, Davis, California, United States of America
| | - Josefina Coloma
- 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, University of Michigan, Ann Arbor, Michigan, United States of America
| |
Collapse
|
2
|
Hien AS, Sangaré I, Ouattara ELP, Sawadogo SP, Soma DD, Maiga H, Diabaté A, Bonnet E, Ridde V, Fournet F, Hawkes FM, Kaupra C, Bouyer J, Abd-Alla AMM, Dabiré RK. Chikungunya (Togaviridae) and dengue 2 (Flaviviridae) viruses detected from Aedes aegypti mosquitoes in Burkina Faso by qRT-PCR technique: Preliminary results and perspective for molecular characterization of arbovirus circulation in vector populations. FRONTIERS IN TROPICAL DISEASES 2022; 3. [DOI: 10.3389/fitd.2022.920224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/02/2023] Open
Abstract
In 2016, an entomological study was carried out in a railway transect between Banfora and Ouagadougou, Burkina Faso. The objective was to assess the risk factors of arbovirus outbreaks, including vector-borne infection status within representative regions of the country. Aedes aegypti mosquitoes were collected at the larval stage from their natural rearing habitats in four study sites when estimating the main larval index, then reared until adult stage and kept in RNAlater for the detection of arbovirus RNA. In the laboratory, mosquito samples were tested for dengue virus (DENV) and Chikungunya virus (CHIKV) using a real-time qRT-PCR stage. A DENV-2 positive pool was detected in Ouagadougou with a minimum infection rate (MIR) of 16.67 and other six CHIKV-positive pools with a MIR of 66.67 in Ouagadougou, Banfora, and Boromo. This qRT-PCR approach, if validated with various samples also comprising wild blood-fed adults, is a useful tool for arbovirus circulation and disease monitoring in Burkina Faso.
Collapse
|
3
|
Guindo-Coulibaly N, Kpan MDS, Adja AM, Kouadio AMN, Assouho KF, Zoh DD, Azongnibo KRM, Remoue F, Fournet F. Seasonal variation and intra urban heterogeneity of the entomological risk of transmission of dengue and yellow fever in Abidjan, Côte d'Ivoire. MEDICAL AND VETERINARY ENTOMOLOGY 2022; 36:329-337. [PMID: 35352845 DOI: 10.1111/mve.12571] [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: 03/02/2021] [Revised: 01/31/2022] [Accepted: 03/10/2022] [Indexed: 06/14/2023]
Abstract
Dengue and yellow fever are prevalent in Côte d'Ivoire and Aedes (Stegomyia) aegypti (Linnaeus), (Diptera: Culicidae), is known as the main vector. We aimed to assess seasonal variation and spatial heterogeneity in the transmission of both arbovirus diseases in Abidjan. Entomological surveys targeting larvae of A. aegypti, were carried out between November 2015 and August 2016 covering the four climatic seasons including a cohort of 100 houses randomly selected in three neighbourhoods. A. aegypti was the predominant species (96.6%) of mosquitoes resulting from the rearing of harvested larvae, and the only vector of dengue and yellow fever recorded during the study period. The highest proportion of water storage containers (45.5%) which represented the major breeding sites infested by the larvae of A. aegypti, was observed in Anoumabo. The house indices >5% and/or Breteau indices >20 recorded in each neighbourhood, during the different climatic seasons, indicated that there was, a high and permanent, heterogeneity in the transmission risk of dengue and yellow fever between the three neighbourhoods. In terms of transmission risk, Anoumabo was the neighbourhood with the highest risk compared to the two others, then, particular attention should be paid to this site in terms of surveillance by vector control programme in Abidjan.
Collapse
Affiliation(s)
- Négnorogo Guindo-Coulibaly
- Laboratoire de Biologie et Santé, Unité de Formation et de Recherches Biosciences, Université Félix Houphouët-Boigny, Abidjan, Côte d'Ivoire
| | - Mintokapieu Didier Stephane Kpan
- Laboratoire de Biologie et Santé, Unité de Formation et de Recherches Biosciences, Université Félix Houphouët-Boigny, Abidjan, Côte d'Ivoire
- Institut Pierre Richet/Institut National de Santé Publique (IPR/INSP), Bouaké, Côte d'Ivoire
| | - Akré Maurice Adja
- Laboratoire de Biologie et Santé, Unité de Formation et de Recherches Biosciences, Université Félix Houphouët-Boigny, Abidjan, Côte d'Ivoire
- Institut Pierre Richet/Institut National de Santé Publique (IPR/INSP), Bouaké, Côte d'Ivoire
| | - Affoué Mireille Nadia Kouadio
- Laboratoire de Biologie et Santé, Unité de Formation et de Recherches Biosciences, Université Félix Houphouët-Boigny, Abidjan, Côte d'Ivoire
- Institut Pierre Richet/Institut National de Santé Publique (IPR/INSP), Bouaké, Côte d'Ivoire
| | - Konan Fabrice Assouho
- Laboratoire de Biologie et Santé, Unité de Formation et de Recherches Biosciences, Université Félix Houphouët-Boigny, Abidjan, Côte d'Ivoire
- Institut Pierre Richet/Institut National de Santé Publique (IPR/INSP), Bouaké, Côte d'Ivoire
| | - Dounin Danielle Zoh
- Laboratoire de Biologie et Santé, Unité de Formation et de Recherches Biosciences, Université Félix Houphouët-Boigny, Abidjan, Côte d'Ivoire
- Institut Pierre Richet/Institut National de Santé Publique (IPR/INSP), Bouaké, Côte d'Ivoire
| | - Konan Rodolphe Mardoché Azongnibo
- Institut Pierre Richet/Institut National de Santé Publique (IPR/INSP), Bouaké, Côte d'Ivoire
- Institut de Géographie Tropicale, Université Félix Houphouët-Boigny, Abidjan, Côte d'Ivoire
| | - Franck Remoue
- Institut de Recherches pour le Développement centre de Montpellier, UMR MIVEGEC (Université de Montpellier, IRD, CNRS), Montpellier, France
| | - Florence Fournet
- Institut de Recherches pour le Développement centre de Montpellier, UMR MIVEGEC (Université de Montpellier, IRD, CNRS), Montpellier, France
| |
Collapse
|
4
|
Letizia AG, Pratt CB, Wiley MR, Fox AT, Mosore M, Agbodzi B, Yeboah C, Kumordjie S, Di Paola N, Assana KC, Coulidiaty D, Ouedraogo C, Bonney JHK, Ampofo W, Tarnagda Z, Sangaré L. Retrospective Genomic Characterization of a 2017 Dengue Virus Outbreak, Burkina Faso. Emerg Infect Dis 2022; 28:1198-1210. [PMID: 35608626 PMCID: PMC9155902 DOI: 10.3201/eid2806.212491] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Knowledge of contemporary genetic composition of dengue virus (DENV) in Africa is lacking. By using next-generation sequencing of samples from the 2017 DENV outbreak in Burkina Faso, we isolated 29 DENV genomes (5 serotype 1, 16 serotype 2 [DENV-2], and 8 serotype 3). Phylogenetic analysis demonstrated the endemic nature of DENV-2 in Burkina Faso. We noted discordant diagnostic results, probably related to genetic divergence between these genomes and the Trioplex PCR. Forward and reverse1 primers had a single mismatch when mapped to the DENV-2 genomes, probably explaining the insensitivity of the molecular test. Although we observed considerable homogeneity between the Dengvaxia and TetraVax-DV-TV003 vaccine strains as well as B cell epitopes compared with these genomes, we noted unique divergence. Continual surveillance of dengue virus in Africa is needed to clarify the ongoing novel evolutionary dynamics of circulating virus populations and support the development of effective diagnostic, therapeutic, and preventive countermeasures.
Collapse
|
5
|
Power GM, Vaughan AM, Qiao L, Sanchez Clemente N, Pescarini JM, Paixão ES, Lobkowicz L, Raja AI, Portela Souza A, Barreto ML, Brickley EB. Socioeconomic risk markers of arthropod-borne virus (arbovirus) infections: a systematic literature review and meta-analysis. BMJ Glob Health 2022; 7:bmjgh-2021-007735. [PMID: 35428678 PMCID: PMC9014035 DOI: 10.1136/bmjgh-2021-007735] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Accepted: 03/02/2022] [Indexed: 02/04/2023] Open
Abstract
Introduction Arthropod-borne viruses (arboviruses) are of notable public health importance worldwide, owing to their potential to cause explosive outbreaks and induce debilitating and potentially life-threatening disease manifestations. This systematic review and meta-analysis aims to assess the relationship between markers of socioeconomic position (SEP) and infection due to arboviruses with mosquito vectors. Methods We conducted a systematic search on PubMed, Embase, and LILACS databases to identify studies published between 1980 and 2020 that measured the association of SEP markers with arbovirus infection. We included observational studies without geographic location or age restrictions. We excluded studies from grey literature, reviews and ecological studies. Study findings were extracted and summarised, and pooled estimates were obtained using random-effects meta-analyses. Results We identified 36 observational studies using data pertaining to 106 524 study participants in 23 geographic locations that empirically examined the relationship between socioeconomic factors and infections caused by seven arboviruses (dengue, chikungunya, Japanese encephalitis, Rift Valley fever, Sindbis, West Nile and Zika viruses). While results were varied, descriptive synthesis pointed to a higher risk of arbovirus infection associated with markers of lower SEP, including lower education, income poverty, low healthcare coverage, poor housing materials, interrupted water supply, marital status (married, divorced or widowed), non-white ethnicities and migration status. Pooled crude estimates indicated an increased risk of arboviral infection associated with lower education (risk ratio, RR 1.5 95% CI 1.3 to 1.9); I2=83.1%), interruption of water supply (RR 1.2; 95% CI 1.1 to 1.3; I2=0.0%) and having been married (RR 1.5 95% CI 1.1 to 2.1; I2=85.2%). Conclusion Evidence from this systematic review suggests that lower SEP increases the risk of acquiring arboviral infection; however, there was large heterogeneity across studies. Further studies are required to delineate the relationship between specific individual, household and community-level SEP indicators and arbovirus infection risks to help inform targeted public health interventions. PROSPERO registration number CRD42019158572.
Collapse
Affiliation(s)
- Grace M Power
- Health Equity Action Lab, Department of Infectious Disease Epidemiology, London School of Hygiene & Tropical Medicine, London, UK
- Department of Disease Control, London School of Hygiene & Tropical Medicine, London, UK
- MRC Integrative Epidemiology Unit, Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK
| | - Aisling M Vaughan
- Health Equity Action Lab, Department of Infectious Disease Epidemiology, London School of Hygiene & Tropical Medicine, London, UK
| | - Luxi Qiao
- Health Equity Action Lab, Department of Infectious Disease Epidemiology, London School of Hygiene & Tropical Medicine, London, UK
- Washington University in St. Louis School of Medicine, St. Louis, MO, USA
| | - Nuria Sanchez Clemente
- Health Equity Action Lab, Department of Infectious Disease Epidemiology, London School of Hygiene & Tropical Medicine, London, UK
| | - Julia M Pescarini
- Health Equity Action Lab, Department of Infectious Disease Epidemiology, London School of Hygiene & Tropical Medicine, London, UK
| | - Enny S Paixão
- Health Equity Action Lab, Department of Infectious Disease Epidemiology, London School of Hygiene & Tropical Medicine, London, UK
| | - Ludmila Lobkowicz
- Health Equity Action Lab, Department of Infectious Disease Epidemiology, London School of Hygiene & Tropical Medicine, London, UK
| | - Amber I Raja
- Health Equity Action Lab, Department of Infectious Disease Epidemiology, London School of Hygiene & Tropical Medicine, London, UK
| | - André Portela Souza
- São Paulo School of Economics and Center for Applied Microeconomic Studies, Getulio Vargas Foundation, São Paulo, Brazil
| | - Mauricio Lima Barreto
- Centro de Integração de Dados e Conhecimentos para Saúde, Oswaldo Cruz Foundation, Salvador, Brazil
| | - Elizabeth B Brickley
- Health Equity Action Lab, Department of Infectious Disease Epidemiology, London School of Hygiene & Tropical Medicine, London, UK
| |
Collapse
|
6
|
Sondo AK, Diendéré EA, Meda BI, Diallo I, Zoungrana J, Poda A, Manga NM, Bicaba B, Gnamou A, Kagoné CJ, Sawadogo G, Yaméogo I, Benzekri NA, Tarnagda Z, Kouanda S, Ouédraogo-Traoré R, Ouédraogo MS, Seydi M. Severe dengue in adults and children, Ouagadougou (Burkina Faso), West Africa, October 2015–January 2017. IJID REGIONS 2021; 1:53-59. [PMID: 35757818 PMCID: PMC9216438 DOI: 10.1016/j.ijregi.2021.09.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/07/2021] [Revised: 09/27/2021] [Accepted: 09/28/2021] [Indexed: 11/29/2022]
Abstract
Severe dengue was common in this sudy. In contrast to multiple prior studies, the risk of severe dengue was greater for patients with primary dengue compared to those with secondary infection. Additional risk factors for severe dengue included age, male sex, haemoglobin S, diabetes, and hypertension. Case mapping showed that dengue cases were more concentrated in sectors located in the centre of the city and close to the health centres.
Introduction Although dengue is the most common arbovirus infection worldwide, studies of severe dengue in Africa are lacking, and risk factors for severe dengue have been insufficiently described. This study was conducted in the context of the 2016 dengue epidemic in Burkina Faso to determine the prevalence of severe dengue, identify factors associated with severe dengue, and perform mapping of dengue cases in the country's capital, Ouagadougou. Methods This cross-sectional study was conducted from November 2015 to January 2017. Data were collected in 15 public and private health centres, and included sociodemographic, clinical and patient outcome variables. Dengue was diagnosed using SD Bioline Dengue Duo rapid diagnostic tests. Data were analysed using Epi-Info Version 7. Logistic regression was used to identify predictors of severe dengue. P<0.05 was considered significant. Dengue case mapping was performed using Geographic Information System software (ArcGIS). Results Of the 811 patients who tested positive for dengue, 609 (75%) had early dengue (AgNS1 positive) and 272 (33.5%) had severe dengue. Patient age ranged from 1 to 83 years (median 30.5 years) and 393 (48.3%) were female. Renal failure (13.1%) and severe bleeding (10.6%) were the most common signs of severe dengue. Risk factors for severe dengue included age, male sex, haemoglobin S, diabetes, hypertension, and primary dengue. Dengue cases were more concentrated in sectors located in the centre of the city and close to the health centres. Conclusion Dengue is increasingly common in Africa and factors associated with severity should be sought systematically as soon as a patient tests positive. Additional studies are needed to determine if the factors found to be associated with severity can be used to identify patients at risk for dengue-related complications, and to provide early and specialized management to reduce morbidity and mortality related to dengue in Africa.
Collapse
Affiliation(s)
- Apoline Kongnimissom Sondo
- Department of Infectious and Tropical Diseases, Yalgado Ouedraogo Teaching Hospital, Ouagadougou, Burkina Faso
- Joseph Ki-Zerbo University, Health Sciences and Research Training Unit, Ouagadougou, Burkina Faso
- Corresponding author. Address: Department of Infectious and Tropical Diseases, Yalgado Ouedraogo Teaching Hospital, Ouagadougou, Burkina Faso. Tel.: +226 70077198.
| | - Eric Arnaud Diendéré
- Department of Infectious and Tropical Diseases, Yalgado Ouedraogo Teaching Hospital, Ouagadougou, Burkina Faso
| | | | - Ismaèl Diallo
- Joseph Ki-Zerbo University, Health Sciences and Research Training Unit, Ouagadougou, Burkina Faso
| | | | - Armel Poda
- National Institute of Health Sciences, Bobo-Dioulasso. Burkina Faso
| | - Noel Magloire Manga
- Unit of Training and Research in Health Sciences, Assane Seck University, Ziguinchor, Senegal
| | - Brice Bicaba
- Ministry of Health, Directorate of Disease Control, Ouagadougou, Burkina Faso
| | - Arouna Gnamou
- Department of Infectious and Tropical Diseases, Yalgado Ouedraogo Teaching Hospital, Ouagadougou, Burkina Faso
| | - Charles Joel Kagoné
- Department of Infectious and Tropical Diseases, Yalgado Ouedraogo Teaching Hospital, Ouagadougou, Burkina Faso
| | - Guetawendé Sawadogo
- Ministry of Health, Directorate of Disease Control, Ouagadougou, Burkina Faso
| | - Issaka Yaméogo
- Ministry of Health, Directorate of Disease Control, Ouagadougou, Burkina Faso
| | - Noelle A. Benzekri
- University of Washington, Department of Medicine, Division of Infectious Diseases, Seattle, WA, USA
| | - Zekiba Tarnagda
- Health Science Research Institute, Bio-Medical Department, Ouagadougou, Burkina Faso
| | - Séni Kouanda
- Health Science Research Institute, Bio-Medical Department, Ouagadougou, Burkina Faso
| | - Ramata Ouédraogo-Traoré
- Joseph Ki-Zerbo University, Health Sciences and Research Training Unit, Ouagadougou, Burkina Faso
| | | | - Moussa Seydi
- Infectious and Tropical Diseases Clinics, Fann University Hospital, Dakar, Senegal
| |
Collapse
|
7
|
Agboli E, Zahouli JBZ, Badolo A, Jöst H. Mosquito-Associated Viruses and Their Related Mosquitoes in West Africa. Viruses 2021; 13:v13050891. [PMID: 34065928 PMCID: PMC8151702 DOI: 10.3390/v13050891] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 05/05/2021] [Accepted: 05/06/2021] [Indexed: 12/13/2022] Open
Abstract
Mosquito-associated viruses (MAVs), including mosquito-specific viruses (MSVs) and mosquito-borne (arbo)viruses (MBVs), are an increasing public, veterinary, and global health concern, and West Africa is projected to be the next front for arboviral diseases. As in-depth knowledge of the ecologies of both western African MAVs and related mosquitoes is still limited, we review available and comprehensive data on their diversity, abundance, and distribution. Data on MAVs’ occurrence and related mosquitoes were extracted from peer-reviewed publications. Data on MSVs, and mosquito and vertebrate host ranges are sparse. However, more data are available on MBVs (i.e., dengue, yellow fever, chikungunya, Zika, and Rift Valley fever viruses), detected in wild and domestic animals, and humans, with infections more concentrated in urban areas and areas affected by strong anthropogenic changes. Aedes aegypti, Culex quinquefasciatus, and Aedes albopictus are incriminated as key arbovirus vectors. These findings outline MAV, related mosquitoes, key knowledge gaps, and future research areas. Additionally, these data highlight the need to increase our understanding of MAVs and their impact on host mosquito ecology, to improve our knowledge of arbovirus transmission, and to develop specific strategies and capacities for arboviral disease surveillance, diagnostic, prevention, control, and outbreak responses in West Africa.
Collapse
Affiliation(s)
- Eric Agboli
- Molecular Biology and Immunology Department, Bernhard Nocht Institute for Tropical Medicine, 20359 Hamburg, Germany;
- Department of Epidemiology and Biostatistics, School of Public Health, University of Health and Allied Sciences, Ho PMB 31, Ghana
| | - Julien B. Z. Zahouli
- Centre d’Entomologie Médicale et Vétérinaire, Université Alassane Ouattara, Bouake, 27 BP 529 Abidjan 27, Cote D’Ivoire;
- Centre Suisse de Recherches Scientifiques en Côte d’Ivoire, Département de Recherche et Développement, 01 BP 1303 Abidjan 01, Cote D’Ivoire
- Department of Epidemiology and Public Health, Swiss Tropical and Public Health Institute, 4051 Basel, Switzerland
| | - Athanase Badolo
- Laboratory of Fundamental and Applied Entomology, Universitée Joseph Ki-Zerbo, Ouagadougou 03 BP 7021, Burkina Faso;
| | - Hanna Jöst
- Bernhard Nocht Institute for Tropical Medicine, WHO Collaborating Centre for Arbovirus and Hemorrhagic Fever Reference and Research, 20359 Hamburg, Germany
- Correspondence:
| |
Collapse
|
8
|
Boyce MR, Katz R, Standley CJ. Risk Factors for Infectious Diseases in Urban Environments of Sub-Saharan Africa: A Systematic Review and Critical Appraisal of Evidence. Trop Med Infect Dis 2019; 4:E123. [PMID: 31569517 PMCID: PMC6958454 DOI: 10.3390/tropicalmed4040123] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 09/04/2019] [Accepted: 09/20/2019] [Indexed: 12/19/2022] Open
Abstract
Our world is rapidly urbanizing. According to the United Nations, between 1990 and 2015, the percent of the world's population living in urban areas grew from 43% to 54%. Estimates suggest that this trend will continue and that over 68% of the world's population will call cities home by 2050, with the majority of urbanization occurring in African countries. This urbanization is already having a profound effect on global health and could significantly impact the epidemiology of infectious diseases. A better understanding of infectious disease risk factors specific to urban settings is needed to plan for and mitigate against future urban outbreaks. We conducted a systematic literature review of the Web of Science and PubMed databases to assess the risk factors for infectious diseases in the urban environments of sub-Saharan Africa. A search combining keywords associated with cities, migration, African countries, infectious disease, and risk were used to identify relevant studies. Original research and meta-analyses published between 2004 and 2019 investigating geographical and behavioral risk factors, changing disease distributions, or control programs were included in the study. The search yielded 3610 papers, and 106 met the criteria for inclusion in the analysis. Papers were categorized according to risk factors, geographic area, and study type. The papers covered 31 countries in sub-Saharan Africa with East Africa being the most represented sub-region. Malaria and HIV were the most frequent disease focuses of the studies. The results of this work can inform public health policy as it relates to capacity building and health systems strengthening in rapidly urbanizing areas, as well as highlight knowledge gaps that warrant additional research.
Collapse
Affiliation(s)
- Matthew R Boyce
- Center for Global Health Science & Security, Georgetown University, Washington, DC 20057, USA.
| | - Rebecca Katz
- Center for Global Health Science & Security, Georgetown University, Washington, DC 20057, USA.
| | - Claire J Standley
- Center for Global Health Science & Security, Georgetown University, Washington, DC 20057, USA.
| |
Collapse
|
9
|
Dengue virus infection in people residing in Africa: a systematic review and meta-analysis of prevalence studies. Sci Rep 2019; 9:13626. [PMID: 31541167 PMCID: PMC6754462 DOI: 10.1038/s41598-019-50135-x] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2019] [Accepted: 08/19/2019] [Indexed: 01/05/2023] Open
Abstract
Better knowledge of the face of the current dengue virus (DENV) epidemiology in Africa can help to implement efficient strategies to curb the burden of dengue fever. We conducted this systematic review and meta-analysis to determine the prevalence of DENV infection in Africa. We searched PubMed, EMBASE, African Journals Online, and Africa Index Medicus from January 1st, 2000 to June 10th, 2019 without any language restriction. We used a random-effects model to pool studies. A total of 76 studies (80,977 participants; 24 countries) were included. No study had high risk of bias. Twenty-two (29%) had moderate and 54 (71%) had low risk of bias. In apparently healthy individuals, the pooled prevalence of DENV was 15.6% (95% confidence interval 9.9–22.2), 3.5% (0.8–7.8), and 0.0% (0.0–0.5) respectively for immunoglobulins (Ig) G, IgM, and for ribonucleic acid (RNA) in apparently healthy populations. In populations presenting with fever, the prevalence was 24.8% (13.8–37.8), 10.8% (3.8–20.6k) and 8.4% (3.7–14.4) for IgG, IgM, and for RNA respectively. There was heterogeneity in the distribution between different regions of Africa. The prevalence of DENV infection is high in the African continent. Dengue fever therefore deserves more attention from healthcare workers, researchers, and health policy makers.
Collapse
|
10
|
Ouattara LPE, Sangaré I, Namountougou M, Hien A, Ouari A, Soma DD, Kassié D, Diabaté A, Gnankiné O, Bonnet E, Ridde V, Akré MA, Fournet F, Dabiré KR. Surveys of Arboviruses Vectors in Four Cities Stretching Along a Railway Transect of Burkina Faso: Risk Transmission and Insecticide Susceptibility Status of Potential Vectors. Front Vet Sci 2019; 6:140. [PMID: 31192232 PMCID: PMC6546915 DOI: 10.3389/fvets.2019.00140] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Accepted: 04/16/2019] [Indexed: 12/31/2022] Open
Abstract
Background: A severe outbreak of dengue occurred in Burkina Faso in 2016, with the most cases reported in Ouagadougou, that highlights the necessity to implement vector surveillance system. This study aims to estimate the risk of arboviruses transmission and the insecticide susceptibility status of potential vectors in four sites in Burkina Faso. Methods: From June to September 2016, house-to-house cross sectional entomological surveys were performed in four cities stretching along a southwest-to-northeast railway transect. The household surveys analyzed the presence of Aedes spp. larvae in containers holding water and the World Health Organization (WHO) larval abundance indices were estimated. WHO tube assays was used to evaluate the insecticide susceptibility within Aedes populations from these localities. Results: A total of 31,378 mosquitoes' larvae were collected from 1,330 containers holding water. Aedes spp. was the most abundant (95.19%) followed by Culex spp. (4.75%). Aedes aegypti a key vector of arboviruses (ARBOV) in West Africa was the major Aedes species found (98.60%). The relative larval indices, house index, container and Breteau indexes were high, up to 70, 35, and 10, respectively. Aedes aegypti tended to breed mainly in discarded tires and terracotta jars. Except in Banfora the western city, Ae. aegypti populations were resistant to deltamethrin 0.05% in the other localities with low mortality rate under 20% in Ouagadougou whereas they were fully susceptible to malathion 5% whatever the site. Intermediate resistance was observed in the four sites with mortality rates varying between 78 and 94% with bendiocarb 0.1%. Conclusions: This study provided basic information on entomological indices that can help to monitor the risks of ARBOV epidemics in the main cities along the railway in Burkina Faso. In these cities, all larval indices exceeded the risk level of ARBOV outbreak. Aedes aegypti the main species collected was resistant to deltamethrin 0.05% and bendiocarb 0.1% whereas they were fully susceptible to malathion 5%. The monitoring of insecticide resistance is also important to be integrated to the vector surveillance system in Burkina Faso.
Collapse
Affiliation(s)
- Lissy Parfait Eric Ouattara
- Unité de Recherche-Paludisme et maladies Tropicales Négligées, Institut de Recherche en Sciences de la Santé, Bobo-Dioulasso, Burkina Faso.,Centre Muraz, Bobo-Dioulasso, Burkina Faso
| | - Ibrahim Sangaré
- Unité de Recherche-Paludisme et maladies Tropicales Négligées, Institut de Recherche en Sciences de la Santé, Bobo-Dioulasso, Burkina Faso.,Institut Supérieur des Sciences de la Santé, Université Nazi Boni, Bobo-Dioulasso, Burkina Faso
| | - Moussa Namountougou
- Unité de Recherche-Paludisme et maladies Tropicales Négligées, Institut de Recherche en Sciences de la Santé, Bobo-Dioulasso, Burkina Faso.,Institut Supérieur des Sciences de la Santé, Université Nazi Boni, Bobo-Dioulasso, Burkina Faso
| | - Aristide Hien
- Unité de Recherche-Paludisme et maladies Tropicales Négligées, Institut de Recherche en Sciences de la Santé, Bobo-Dioulasso, Burkina Faso
| | - Ali Ouari
- Unité de Recherche-Paludisme et maladies Tropicales Négligées, Institut de Recherche en Sciences de la Santé, Bobo-Dioulasso, Burkina Faso.,Centre Muraz, Bobo-Dioulasso, Burkina Faso
| | - Dieudonné Diloma Soma
- Unité de Recherche-Paludisme et maladies Tropicales Négligées, Institut de Recherche en Sciences de la Santé, Bobo-Dioulasso, Burkina Faso
| | | | - Abdoulaye Diabaté
- Unité de Recherche-Paludisme et maladies Tropicales Négligées, Institut de Recherche en Sciences de la Santé, Bobo-Dioulasso, Burkina Faso
| | - Olivier Gnankiné
- UFR-Sciences de la Vie et de la Terre, Université Joseph-Ki Zerbo-Ouaga 1, Ouagadougou, Burkina Faso
| | | | - Valéry Ridde
- Department of Social and Preventive Medicine, School of Public Health (ESPUM), University of Montreal, Montreal, QC, Canada
| | - Maurice Adja Akré
- Département D'Entomologie Médicale, Institut Pierre Richet, Bouaké, Côte d'Ivoire
| | | | - Kounbobr Roch Dabiré
- Unité de Recherche-Paludisme et maladies Tropicales Négligées, Institut de Recherche en Sciences de la Santé, Bobo-Dioulasso, Burkina Faso
| |
Collapse
|
11
|
Sanou AS, Dirlikov E, Sondo KA, Kagoné TS, Yameogo I, Sow HE, Adjami AG, Traore SM, Dicko A, Tinto B, Diendere EA, Ouedraogo-Konate SMWK, Kiemtore T, Kangoye DT, Sangare L, Dama ETH, Fuller JA, Major CG, Tosado-Acevedo R, Sharp TM, Koné RG, Bicaba BW. Building Laboratory-Based Arbovirus Sentinel Surveillance Capacity During an Ongoing Dengue Outbreak, Burkina Faso, 2017. Health Secur 2019; 16:S103-S110. [PMID: 30480496 DOI: 10.1089/hs.2018.0048] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
In West Africa, identification of nonmalarial acute febrile illness (AFI) etiologic pathogens is challenging, given limited epidemiologic surveillance and laboratory testing, including for AFI caused by arboviruses. Consequently, public health action to prevent, detect, and respond to outbreaks is constrained, as experienced during dengue outbreaks in several African countries. We describe the successful implementation of laboratory-based arbovirus sentinel surveillance during a dengue outbreak in Burkina Faso during fall 2017. We describe implementation, surveillance methods, and associated costs of enhanced surveillance during an outbreak response as an effort to build capacity to better understand the burden of disease caused by arboviruses in Burkina Faso. The system improved on existing routine surveillance through an improved case report form, systematic testing of specimens, and linking patient information with laboratory results through a data management system. Lessons learned will improve arbovirus surveillance in Burkina Faso and will contribute to enhancing global health security in the region. Elements critical to the success of this intervention include responding to a specific and urgent request by the government of Burkina Faso and building on existing systems and infrastructure already supported by CDC's global health security program.
Collapse
Affiliation(s)
- Anselme Simeon Sanou
- Anselme Simeon Sanou, MD, is Senior Surveillance Advisor, the Division for Global Health Protection/Burkina Faso Country Office, US Centers for Disease Control and Prevention , Ouagadougou, Burkina Faso
| | - Emilio Dirlikov
- Emilio Dirlikov, PhD, is Emergency Public Health Epidemiologist, Division for Global Health Protection/Emergency Recovery and Response Branch/Global Rapid Response Team, the US Centers for Disease Control and Prevention , Atlanta, Georgia
| | - Kongnimissom Apoline Sondo
- Kongnimissom Apoline Sondo, MD, is Head of the Service, Service of Infectious Diseases, the Centre Hospitalier Universitaire Yalgado Ouedraogo , Ouagadougou, Burkina Faso
| | - Thérèse Samdapawindé Kagoné
- Thérèse Samdapawindé Kagoné, PhD, is Head of the Viral Hemorrhagic Fever laboratory, the Laboratoire National de Référence des Fièvres Hémorragiques Virales , Centre Muraz, Bobo-Dioulasso, Burkina Faso
| | - Issaka Yameogo
- Issaka Yameogo, MD, is a Medical Epidemiologist, the Direction de la Protection de la Santé de la Population, Ministère de la Sante, Ouagadougou, Burkina Faso
| | - Hyacinthe Euvrard Sow
- Hyacinthe Euvrard Sow, MD, is a Medical Epidemiologist, the Direction de la Protection de la Santé de la Population, Ministère de la Sante, Ouagadougou, Burkina Faso
| | - Aimé Gilles Adjami
- Aimé Gilles Adjami, PhD, is a Biologist and Executive Director, DAVYCAS International , Ouagadougou, Burkina Faso
| | - Siriky Martin Traore
- Siriky Martin Traore, PharmD, is a Medical Biologist, the Direction de la Protection de la Santé de la Population, Ministère de la Sante, Ouagadougou, Burkina Faso
| | - Amadou Dicko
- Amadou Dicko, DVM, is a Researcher, the Laboratoire National de Référence des Fièvres Hémorragiques Virales , Centre Muraz, Bobo-Dioulasso, Burkina Faso
| | - Bachirou Tinto
- Bachirou Tinto, PharmD, is a Researcher, the Laboratoire National de Référence des Fièvres Hémorragiques Virales , Centre Muraz, Bobo-Dioulasso, Burkina Faso
| | - Eric Arnaud Diendere
- Eric Arnaud Diendere, MD, is Infectiologist, Service of Infectious Diseases, the Centre Hospitalier Universitaire Yalgado Ouedraogo , Ouagadougou, Burkina Faso
| | - Sonia Marie W K Ouedraogo-Konate
- Sonia Marie W. K. Ouedraogo-Konate, MD, is a Medical Epidemiologist, the Direction de la Protection de la Santé de la Population, Ministère de la Sante, Ouagadougou, Burkina Faso
| | - Tanga Kiemtore
- Tanga Kiemtore, is Data Manager, the Direction de la Protection de la Santé de la Population, Ministère de la Sante, Ouagadougou, Burkina Faso
| | - David Tiga Kangoye
- David Tiga Kangoye, MD, is an Immuno Epidemiologist, Head of the Department of Public Health, the Centre Hospitalier Universitaire Yalgado Ouedraogo , Ouagadougou, Burkina Faso
| | - Lassana Sangare
- Lassana Sangare, PhD, is Virologist, Head of the Department of laboratories, the Centre Hospitalier Universitaire Yalgado Ouedraogo , Ouagadougou, Burkina Faso
| | - Emilie T H Dama
- Emilie T. H. Dama, PhD, is Senior Laboratory Advisor, the Division for Global Health Protection/Burkina Faso Country Office, US Centers for Disease Control and Prevention , Ouagadougou, Burkina Faso
| | - James A Fuller
- James A. Fuller, PhD, is an Epidemiologist, Division for Global Health Protection/Global Disease Detection Operations Center, the US Centers for Disease Control and Prevention , Atlanta, Georgia
| | - Chelsea G Major
- Chelsea G. Major, MPH, is a Public Health Advisor, the National Center for Emerging and Zoonotic Infectious Diseases/Division of Vector-Borne Diseases/Dengue Branch, US Centers for Disease Control and Prevention , San Juan, Puerto Rico
| | - Rafael Tosado-Acevedo
- Rafael Tosado-Acevedo, PhD, is a Microbiologist, the National Center for Emerging and Zoonotic Infectious Diseases/Division of Vector-Borne Diseases/Dengue Branch, US Centers for Disease Control and Prevention , San Juan, Puerto Rico
| | - Tyler M Sharp
- Tyler M. Sharp, PhD, is an Epidemiologist, the National Center for Emerging and Zoonotic Infectious Diseases/Division of Vector-Borne Diseases/Dengue Branch, US Centers for Disease Control and Prevention , San Juan, Puerto Rico
| | - Rebecca Greco Koné
- Rebecca Greco Koné, MPH, is Country Director, the Division for Global Health Protection/Burkina Faso Country Office, US Centers for Disease Control and Prevention , Ouagadougou, Burkina Faso
| | - Brice Wilfried Bicaba
- Brice Wilfried Bicaba, MD, is Director, the Direction de la Protection de la Santé de la Population, Ministère de la Sante, Ouagadougou, Burkina Faso
| |
Collapse
|