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Clipes MVS, Vicente CR, Cardoso da Silva TC, Resende LC, Cerutti Junior C. Analysis of spatial and demographic factors associated with chikungunya in Espírito Santo state, Brazil. Trans R Soc Trop Med Hyg 2024:trae019. [PMID: 38650504 DOI: 10.1093/trstmh/trae019] [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: 10/16/2023] [Revised: 01/08/2024] [Accepted: 03/20/2024] [Indexed: 04/25/2024] Open
Abstract
BACKGROUND Chikungunya (CHIK) emerged in Brazil in 2014 and since then several epidemics have been observed. This study aims to describe the spatial, social and demographic characteristics of individuals affected by CHIK in Espírito Santo state. METHODS A cross-sectional study was performed using data from individuals with a confirmed diagnosis of CHIK in Espírito Santo state, Brazil, from 2018 to 2020. Monthly incidence was calculated and annual spatial distribution maps were constructed. Statistical analysis using the χ2 test identified associations between disease occurrence and sociodemographic variables. RESULTS In the period and area analysed, a CHIK epidemic occurred in 2020, with an incidence of 219.8 cases per 100 000 inhabitants. The southern and central regions of Espirito Santo state harboured a risk five times greater than the others in the epidemic region. Females (odds ratio [OR] 1.65 [95% confidence interval {CI} 1.58 to 1.72]), black people (OR 1.22 [95% CI 1.13 to 1.33]), individuals with ≤11 y of education (OR 1.48 [95% CI 1.37 to 1.61]) and the elderly (OR 7.49 [95% CI 6.53 to 8.59]) had a greater risk for the disease. CONCLUSIONS CHIK stands as an emerging public health problem in Brazil since its introduction in 2014. Espírito Santo suffered a substantial epidemic in 2020, possibly due to outbreaks in neighbouring states. The population at risk should be prioritized in healthcare, considering the morbidity potential of the disease.
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Affiliation(s)
- Marcus Vinicius Salvador Clipes
- Post-Graduate Program of Infectious Diseases, Federal University of Espirito Santo, Vitória, Marechal Campos Avenue, 1468, 29047-105, Espírito Santo, Brazil
| | - Creuza Rachel Vicente
- Post-Graduate Program of Infectious Diseases, Federal University of Espirito Santo, Vitória, Marechal Campos Avenue, 1468, 29047-105, Espírito Santo, Brazil
| | - Theresa Cristina Cardoso da Silva
- Special Nucleus of Epidemiologic Surveillance from the State Department of Health, Vitória, Marechal Mascarenha de Moraes Avenue, 29050-755, Espírito Santo, Brazil
| | - Lilyan Correia Resende
- Post-Graduate Program of Infectious Diseases, Federal University of Espirito Santo, Vitória, Marechal Campos Avenue, 1468, 29047-105, Espírito Santo, Brazil
| | - Crispim Cerutti Junior
- Post-Graduate Program of Infectious Diseases, Federal University of Espirito Santo, Vitória, Marechal Campos Avenue, 1468, 29047-105, Espírito Santo, Brazil
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Meyer AD, Guerrero SM, Dean NE, Anderson KB, Stoddard ST, Perkins TA. Model-based estimates of chikungunya epidemiological parameters and outbreak risk from varied data types. Epidemics 2023; 45:100721. [PMID: 37890441 DOI: 10.1016/j.epidem.2023.100721] [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: 07/03/2023] [Revised: 10/06/2023] [Accepted: 10/09/2023] [Indexed: 10/29/2023] Open
Abstract
Assessing the factors responsible for differences in outbreak severity for the same pathogen is a challenging task, since outbreak data are often incomplete and may vary in type across outbreaks (e.g., daily case counts, serology, cases per household). We propose that outbreaks described with varied data types can be directly compared by using those data to estimate a common set of epidemiological parameters. To demonstrate this for chikungunya virus (CHIKV), we developed a realistic model of CHIKV transmission, along with a Bayesian inference method that accommodates any type of outbreak data that can be simulated. The inference method makes use of the fact that all data types arise from the same transmission process, which is simulated by the model. We applied these tools to data from three real-world outbreaks of CHIKV in Italy, Cambodia, and Bangladesh to estimate nine model parameters. We found that these populations differed in several parameters, including pre-existing immunity and house-to-house differences in mosquito activity. These differences resulted in posterior predictions of local CHIKV transmission risk that varied nearly fourfold: 16% in Italy, 28% in Cambodia, and 62% in Bangladesh. Our inference method and model can be applied to improve understanding of the epidemiology of CHIKV and other pathogens for which outbreaks are described with varied data types.
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Affiliation(s)
- Alexander D Meyer
- Department of Biological Sciences, University of Notre Dame, Notre Dame, IN 46556, USA.
| | | | - Natalie E Dean
- Department of Biostatistics and Bioinformatics, Rollins School of Public Health, Emory University, Atlanta, GA 30322, USA
| | - Kathryn B Anderson
- Department of Microbiology and Immunology, The State University of New York (SUNY) Upstate Medical University, Syracuse, NY 13210, USA
| | - Steven T Stoddard
- Bavarian Nordic Inc., 6275 Nancy Ridge Drive Suite 110/120, San Diego, CA 92121, USA; Division of Health Promotion and Behavioral Sciences, School of Public Health, San Diego State University, San Diego, CA 92182, USA
| | - T Alex Perkins
- Department of Biological Sciences, University of Notre Dame, Notre Dame, IN 46556, USA
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Costa LB, Barreto FKDA, Barreto MCA, Santos THPD, Andrade MDMOD, Farias LABG, Freitas ARRD, Martinez MJ, Cavalcanti LPDG. Epidemiology and Economic Burden of Chikungunya: A Systematic Literature Review. Trop Med Infect Dis 2023; 8:301. [PMID: 37368719 DOI: 10.3390/tropicalmed8060301] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Revised: 05/28/2023] [Accepted: 05/29/2023] [Indexed: 06/29/2023] Open
Abstract
Chikungunya (CHIK) is a re-emerging viral infection endemic in tropical and subtropical areas. While the typical clinical presentation is an acute febrile syndrome, long-term articular complications and even death can occur. This review characterizes the global epidemiological and economic burden of chikungunya. The search included studies published from 2007 to 2022 in MEDLINE, Embase, LILACS, and SciELO for a thorough evaluation of the literature. Rayyan software was used for data analysis, and data were summarized descriptively and reported following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. Seventy-six publications were included. Chikungunya is widely distributed in the tropics, including Africa, Asia, South America, and Oceania/the Pacific Islands, and co-circulates with other simultaneous arboviruses such as DENV, ZIKV, and YFV. Chikungunya infection can lead to chronic articular manifestations with a significant impact on the quality of life in the long term. In addition, it generates absenteeism and economic and social losses and can cause fatal infections in vulnerable populations, mainly in high-risk patients with co-morbidities and at the extremes of age. Reported costs associated with CHIKV diseases are substantial and vary by region, age group, and public/private delivery of healthcare services. The chikungunya disease burden includes chronicity, severe infections, increased hospitalization risks, and associated mortality. The disease can impact the economy in several spheres, significantly affecting the health system and national economies. Understanding and measuring the full impact of this re-emerging disease is essential.
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Affiliation(s)
- Lourrany Borges Costa
- Programa de Pós-Graduação em Saúde Coletiva, Universidade Federal do Ceara (UFC), Ceara 60020-181, Brazil
- Faculdade de Medicina, Universidade de Fortaleza (UNIFOR), Ceara 60811-905, Brazil
| | | | | | | | | | - Luís Arthur Brasil Gadelha Farias
- Hospital São Jose de Doenças Infecciosas, Ceara 60455-610, Brazil
- Faculdade de Medicina, Centro Universitário Christus (UNICHRISTUS), Ceara 60192-345, Brazil
| | | | - Miguel Julian Martinez
- Microbiology Department, Hospital Clínic-Universitat de Barcelona, 08036 Barcelona, Spain
- Barcelona Institute for Global Health (ISGlobal), Hospital Clínic-Universitat de Barcelona, 08036 Barcelona, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III, 28220 Madrid, Spain
| | - Luciano Pamplona de Góes Cavalcanti
- Programa de Pós-Graduação em Saúde Coletiva, Universidade Federal do Ceara (UFC), Ceara 60020-181, Brazil
- Faculdade de Medicina, Centro Universitário Christus (UNICHRISTUS), Ceara 60192-345, Brazil
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Al-Amin HM, Gyawali N, Graham M, Alam MS, Lenhart A, Hugo LE, Rašić G, Beebe NW, Devine GJ. Insecticide resistance compromises the control of Aedes aegypti in Bangladesh. PEST MANAGEMENT SCIENCE 2023. [PMID: 36942761 DOI: 10.1002/ps.7462] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Revised: 02/13/2023] [Accepted: 03/21/2023] [Indexed: 06/18/2023]
Abstract
BACKGROUND With no effective drugs or widely available vaccines, dengue control in Bangladesh is dependent on targeting the primary vector Aedes aegypti with insecticides and larval source management. Despite these interventions, the dengue burden is increasing in Bangladesh, and the country experienced its worst outbreak in 2019 with 101 354 hospitalized cases. This may be partially facilitated by the presence of intense insecticide resistance in vector populations. Here, we describe the intensity and mechanisms of resistance to insecticides commonly deployed against Ae. aegypti in Dhaka, Bangladesh. RESULTS Dhaka Ae. aegypti colonies exhibited high-intensity resistance to pyrethroids. Using CDC bottle assays, we recorded 2-24% mortality (recorded at 24 h) to permethrin and 48-94% mortality to deltamethrin, at 10× the diagnostic dose. Bioassays conducted using insecticide-synergist combinations suggested that metabolic mechanisms were contributing to pyrethroid resistance, specifically multi-function oxidases, esterases, and glutathione S-transferases. In addition, kdr alleles were detected, with a high frequency (78-98%) of homozygotes for the V1016G mutation. A large proportion (≤ 74%) of free-flying and resting mosquitoes from Dhaka colonies survived exposure to standard applications of pyrethroid aerosols in an experimental free-flight room. Although that exposure affected the immediate host-seeking behavior of Ae. aegypti, the effect was transient in surviving mosquitoes. CONCLUSION The intense resistance characterized in this study is likely compromising the operational effectiveness of pyrethroids against Ae. aegypti in Dhaka. Switching to alternative chemical classes may offer a medium-term solution, but ultimately a more sustainable and effective approach to controlling dengue vectors is required. © 2023 The Authors. Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.
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Affiliation(s)
- Hasan Mohammad Al-Amin
- Mosquito Control Laboratory, QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia
- School of Biological Sciences, University of Queensland, Brisbane, Queensland, Australia
| | - Narayan Gyawali
- Mosquito Control Laboratory, QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia
| | - Melissa Graham
- Mosquito Control Laboratory, QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia
| | - Mohammad Shafiul Alam
- International Center for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Audrey Lenhart
- Entomology Branch, Division of Parasitic Diseases and Malaria, Center for Global Health, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Leon E Hugo
- Mosquito Control Laboratory, QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia
| | - Gordana Rašić
- Mosquito Genomics, QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia
| | - Nigel W Beebe
- School of Biological Sciences, University of Queensland, Brisbane, Queensland, Australia
- CSIRO, Brisbane, Queensland, Australia
| | - Gregor J Devine
- Mosquito Control Laboratory, QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia
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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.
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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
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Akram A, Muraduzzaman AKM, Jony MHK, Sultana S, Alam AN, Flora MS, Shirin T. The viral etiology of acute febrile illness of in Dhaka, Bangladesh in the year of 2017. JOURNAL OF CLINICAL VIROLOGY PLUS 2022. [DOI: 10.1016/j.jcvp.2022.100096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022] Open
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Hossain S, Choudhury MR, Islam MA, Hassan MM, Yeasmin S, Hossain F, Zaman MM. Post-chikungunya arthritis: a longitudinal study in a tertiary care hospital in Bangladesh. Trop Med Health 2022; 50:21. [PMID: 35260197 PMCID: PMC8903658 DOI: 10.1186/s41182-022-00412-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Accepted: 02/23/2022] [Indexed: 11/17/2022] Open
Abstract
Background and objective To identify the clinical patterns and consequences of post-chikungunya arthritis was the study's objective. Methods This longitudinal study was carried out among 143 Chikungunya virus (CHIKV) infected adult patients at the rheumatology department, Bangabandhu Sheikh Mujib Medical University (BSMMU), Dhaka, Bangladesh, during the outbreak of CHIKV infection in 2017. The disease was categorized into three phases: acute or febrile (lasting up to 10 days), subacute (11–90 days), and chronic (> 90 days). Patients who progressed towards the chronic phase were followed up to 1-year. Post-CHIKV de novo chronic inflammatory rheumatisms (CIRs) were characterized by persistent mono or oligoarthritis, undifferentiated polyarthritis, or meet the criteria rheumatoid arthritis (RA) or Spondyloarthritis (SpA). In addition, functional status was assessed by the validated Bangla version of the Health Assessment Questionnaire (HAQ). Results Mean age was 43.3 ± 11.5 years, and 51.0% were male. Within 1-year follow-up, 60 (41.9%) patients were suffering from arthralgia/ arthritis. Of them 52 patients did not have any pre-existing arthralgia/arthritis. 35 (65.3%) had undifferentiated arthritis, 10 (19.2%) had SpA, and 7 (13.5%) had RA. Patients with pre-existing rheumatological disorders, 6(4.2%) had SpA, 1(0.7%) had RA and 1(0.7%) had osteoarthritis. Polyarthralgia (n = 33, 55.0%) and polyarthritis (n = 20, 33.3%) were the main presentations. Female gender (OR: 0.45; CI: 0.21–0.96), positive IgG (OR: 0.30; CI: 0.12–0.76), and moderate to severe functional disability (OR: 3.46; CI: 1.62–7.40) were independent predictors of developing chronic post-CHIKV rheumatism. Conclusions At 1-year follow-up, more than one-third of the patients remained symptomatic. Female gender, positive IgG, and moderate to severe functional disability contributed to the development of chronicity.
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Amin MR, Hasan MJ, Khan MAS, Rafi MA, Islam R, Shams T, Islam MJ, Kabir ASML, Sharif M, Gozal D. Chikungunya outbreak in Bangladesh (2017): sociodemographic and clinical characteristics of patients from three hotspots. Trop Med Health 2022; 50:9. [PMID: 35016730 PMCID: PMC8753914 DOI: 10.1186/s41182-022-00399-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Accepted: 01/02/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Chikungunya is a severely debilitating disease. Bangladesh witnessed one of the largest outbreaks in 2017. Here, we described the clinical profile of the chikungunya outbreak in Bangladesh and its heterogeneity across three hotspots. METHODS This was a descriptive cross-sectional study of 432 individuals interviewed from the outpatient department of three study sites (Dhaka, Chittagong, and Sitakundu Upazilla of Bangladesh) after confirmation by the study physicians. Both laboratory-confirmed cases and probable cases were recruited between July and October 2017. RESULTS Of all, 18% (79) were laboratory confirmed, and 353 82% (335) were probable cases. The male:female ratio was almost equal (1.09:1), and the predominant age group was 18-59 years. The mean age of the presentation was 36.07 ± 13.62 (SD) years. Fever and arthralgia were the most common presentations and were present in > 95% of cases. Other frequent symptoms were fatigue, myalgia, headache, nausea, and vomiting. Approximately half of the patients had arthritis and erythematous rash. Arthritis was predominant in Chittagong city, while maculopapular rash was not observed in Sitakunda city. However, fatigue, nausea, and vomiting are more common among patients in Dhaka city. Significant heterogeneity of clinical manifestations was present across the three hotspots (p < 0.05 for all). Both confirmed and probable cases shared similar characteristics except muscle ache (p = 0.22) and rash (p = 0.37). CONCLUSION The clinical profile of chikungunya virus-induced disease displays significant location-related heterogeneity in Bangladesh during a large outbreak. Although the causes of such differences are unclear, improved public and medical personnel education on this condition may lead to earlier diagnosis and treatment.
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Affiliation(s)
- Mohammad Robed Amin
- Department of Medicine, Dhaka Medical College and Hospital-2, Room No 502, Dhaka, Bangladesh
| | | | | | | | - Rafiqul Islam
- Department of Medicine, Shaheed Suhrawardy Medical College, Dhaka, Bangladesh
| | - Tarek Shams
- Department of Medicine, Cox's Bazar Medical College, Cox's Bazar, Bangladesh
| | | | | | - Mohiuddin Sharif
- Department of Medicine, Dhaka Medical College and Hospital-2, Dhaka, Bangladesh
| | - David Gozal
- Department of Child Health, MU Women's and Children's Hospital University of Missouri School of Medicine, Columbia, MO, USA
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Khongwichit S, Chansaenroj J, Chirathaworn C, Poovorawan Y. Chikungunya virus infection: molecular biology, clinical characteristics, and epidemiology in Asian countries. J Biomed Sci 2021; 28:84. [PMID: 34857000 PMCID: PMC8638460 DOI: 10.1186/s12929-021-00778-8] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Accepted: 11/21/2021] [Indexed: 02/03/2023] Open
Abstract
Chikungunya virus (CHIKV) is a re-emerging mosquito-borne human pathogen that causes chikungunya fever, which is typically accompanied by severe joint pain. In Asia, serological evidence indicated that CHIKV first emerged in 1954. From the 1950’s to 2005, sporadic CHIKV infections were attributed to the Asian genotype. However, the massive outbreak of CHIKV in India and the Southwest Indian Ocean Islands in 2005 has since raised chikungunya as a worldwide public health concern. The virus is spreading globally, but mostly in tropical and subtropical regions, particularly in South and Southeast Asia. The emergence of the CHIKV East/Central/South African genotype-Indian Ocean lineage (ECSA-IOL) has caused large outbreaks in South and Southeast Asia affected more than a million people over a decade. Notably, the massive CHIKV outbreaks before 2016 and the more recent outbreak in Asia were driven by distinct ECSA lineages. The first significant CHIKV ECSA strains harbored the Aedes albopictus-adaptive mutation E1: A226V. More recently, another mass CHIKV ECSA outbreak in Asia started in India and spread beyond South and Southeast Asia to Kenya and Italy. This virus lacked the E1: A226V mutation but instead harbored two novel mutations (E1: K211E and E2: V264A) in an E1: 226A background, which enhanced its fitness in Aedes aegypti. The emergence of a novel ECSA strain may lead to a more widespread geographical distribution of CHIKV in the future. This review summarizes the current CHIKV situation in Asian countries and provides a general overview of the molecular virology, disease manifestation, diagnosis, prevalence, genotype distribution, evolutionary relationships, and epidemiology of CHIKV infection in Asian countries over the past 65 years. This knowledge is essential in guiding the epidemiological study, control, prevention of future CHIKV outbreaks, and the development of new vaccines and antivirals targeting CHIKV.
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Affiliation(s)
- Sarawut Khongwichit
- Center of Excellence in Clinical Virology, Department of Pediatrics, Faculty of Medicine, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Jira Chansaenroj
- Center of Excellence in Clinical Virology, Department of Pediatrics, Faculty of Medicine, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Chintana Chirathaworn
- Department of Microbiology, Faculty of Medicine, Chulalongkorn University, Bangkok, 10330, Thailand.,Tropical Medicine Cluster, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Yong Poovorawan
- Center of Excellence in Clinical Virology, Department of Pediatrics, Faculty of Medicine, Chulalongkorn University, Bangkok, 10330, Thailand.
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Model-based assessment of Chikungunya and O'nyong-nyong virus circulation in Mali in a serological cross-reactivity context. Nat Commun 2021; 12:6735. [PMID: 34795213 PMCID: PMC8602252 DOI: 10.1038/s41467-021-26707-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Accepted: 09/08/2021] [Indexed: 11/08/2022] Open
Abstract
Serological surveys are essential to quantify immunity in a population but serological cross-reactivity often impairs estimates of the seroprevalence. Here, we show that modeling helps addressing this key challenge by considering the important cross-reactivity between Chikungunya (CHIKV) and O'nyong-nyong virus (ONNV) as a case study. We develop a statistical model to assess the epidemiology of these viruses in Mali. We additionally calibrate the model with paired virus neutralization titers in the French West Indies, a region with known CHIKV circulation but no ONNV. In Mali, the model estimate of ONNV and CHIKV prevalence is 30% and 13%, respectively, versus 27% and 2% in non-adjusted estimates. While a CHIKV infection induces an ONNV response in 80% of cases, an ONNV infection leads to a cross-reactive CHIKV response in only 22% of cases. Our study shows the importance of conducting serological assays on multiple cross-reactive pathogens to estimate levels of virus circulation.
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Abstract
Chikungunya fever (CHIKF) is an arbovirus disease caused by chikungunya virus (CHIKV), an alphavirus of Togaviridae family. Transmission follows a human-mosquito-human cycle starting with a mosquito bite. Subsequently, symptoms develop after 2-6 days of incubation, including high fever and severe arthralgia. The disease is self-limiting and usually resolve within 2 weeks. However, chronic disease can last up to several years with persistent polyarthralgia. Overlapping symptoms and common vector with dengue and malaria present many challenges for diagnosis and treatment of this disease. CHIKF was reported in India in 1963 for the first time. After a period of quiescence lasting up to 32 years, CHIKV re-emerged in India in 2005. Currently, every part of the country has become endemic for the disease with outbreaks resulting in huge economic and productivity losses. Several mutations have been identified in circulating strains of the virus resulting in better adaptations or increased fitness in the vector(s), effective transmission, and disease severity. CHIKV evolution has been a significant driver of epidemics in India, hence, the need to focus on proper surveillance, and implementation of prevention and control measure in the country. Presently, there are no licensed vaccines or antivirals available; however, India has initiated several efforts in this direction including traditional medicines. In this review, we present the current status of CHIKF in India.
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Rahman MS, Faruk MO, Tanjila S, Sabbir NM, Haider N, Chowdhury S. Entomological survey for identification of Aedes larval breeding sites and their distribution in Chattogram, Bangladesh. BENI-SUEF UNIVERSITY JOURNAL OF BASIC AND APPLIED SCIENCES 2021. [DOI: 10.1186/s43088-021-00122-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
Studying the characteristics of Aedes mosquito habitats is essential to control the mosquito population. The objective of this study was to identify the breeding sites of Aedes larvae and their distribution in Chattogram, Bangladesh. We conducted an entomological survey in 12 different sub-districts (Thana) under Chattogram City, during the late monsoon (August to November) 2019. The presence of different wet containers along with their characteristics and immature mosquitoes was recorded in field survey data form. Larvae and/or pupae were collected and brought to the laboratory for identification.
Results
Different indices like house index, container index, and the Breteau index were estimated. The multiple logistic regression analysis was applied to identify habitats that were more likely to be positive for Aedes larvae/pupae. A total of 704 wet containers of 37 different types from 216 properties were examined, where 52 (7.39%) were positive for Aedes larvae or pupae. Tire, plastic buckets, plastic drums, and coconut shells were the most prevalent container types. The plastic group possessed the highest container productivity (50%) whereas the vehicle and machinery group was found as most efficient (1.83) in terms of immature Aedes production. Among the total positive properties, 8% were infested with Aedes aegypti, 2% with Aedes albopictus, and 1% contained both species Ae. aegypti and A. albopictus. The overall house index was 17.35%, the container index was 7%, and the Breteau index was 24.49. Containers in multistoried houses had significantly lower positivity compared to independent houses. Binary logistic regression represented that containers having shade were 6.7 times more likely to be positive than the containers without shade (p< 0.01).
Conclusions
These findings might assist the authorities to identify the properties, containers, and geographical areas with different degrees of risk for mosquito control interventions to prevent dengue and other Aedes-borne disease transmissions.
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Mahmud AS, Kabir MI, Engø-Monsen K, Tahmina S, Riaz BK, Hossain MA, Khanom F, Rahman MM, Rahman MK, Sharmin M, Hossain DM, Yasmin S, Ahmed MM, Lusha MAF, Buckee CO. Megacities as drivers of national outbreaks: The 2017 chikungunya outbreak in Dhaka, Bangladesh. PLoS Negl Trop Dis 2021; 15:e0009106. [PMID: 33529229 PMCID: PMC7880496 DOI: 10.1371/journal.pntd.0009106] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 02/12/2021] [Accepted: 01/04/2021] [Indexed: 01/11/2023] Open
Abstract
BACKGROUND Several large outbreaks of chikungunya have been reported in the Indian Ocean region in the last decade. In 2017, an outbreak occurred in Dhaka, Bangladesh, one of the largest and densest megacities in the world. Population mobility and fluctuations in population density are important drivers of epidemics. Measuring population mobility during outbreaks is challenging but is a particularly important goal in the context of rapidly growing and highly connected cities in low- and middle-income countries, which can act to amplify and spread local epidemics nationally and internationally. METHODS We first describe the epidemiology of the 2017 chikungunya outbreak in Dhaka and estimate incidence using a mechanistic model of chikungunya transmission parametrized with epidemiological data from a household survey. We combine the modeled dynamics of chikungunya in Dhaka, with mobility estimates derived from mobile phone data for over 4 million subscribers, to understand the role of population mobility on the spatial spread of chikungunya within and outside Dhaka during the 2017 outbreak. RESULTS We estimate a much higher incidence of chikungunya in Dhaka than suggested by official case counts. Vector abundance, local demographics, and population mobility were associated with spatial heterogeneities in incidence in Dhaka. The peak of the outbreak in Dhaka coincided with the annual Eid holidays, during which large numbers of people traveled from Dhaka to other parts of the country. We show that travel during Eid likely resulted in the spread of the infection to the rest of the country. CONCLUSIONS Our results highlight the impact of large-scale population movements, for example during holidays, on the spread of infectious diseases. These dynamics are difficult to capture using traditional approaches, and we compare our results to a standard diffusion model, to highlight the value of real-time data from mobile phones for outbreak analysis, forecasting, and surveillance.
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Affiliation(s)
- Ayesha S. Mahmud
- Department of Demography, University of California, Berkeley, Berkeley, California, United States of America
- Harvard T. H. Chan School of Public Health, Boston, Massachusetts, United States of America
| | - Md. Iqbal Kabir
- National Institute of Preventive and Social Medicine, Dhaka, Bangladesh
- Directorate General of Health Services, Dhaka, Bangladesh
| | | | - Sania Tahmina
- Directorate General of Health Services, Dhaka, Bangladesh
| | | | - Md. Akram Hossain
- National Institute of Preventive and Social Medicine, Dhaka, Bangladesh
| | - Fahmida Khanom
- National Institute of Preventive and Social Medicine, Dhaka, Bangladesh
| | | | | | | | | | | | | | | | - Caroline O. Buckee
- Harvard T. H. Chan School of Public Health, Boston, Massachusetts, United States of America
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14
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Rahman KM, Sharker Y, Rumi RA, Khan MUI, Shomik MS, Rahman MW, Billah SM, Rahman M, Streatfield PK, Harley D, Luby SP. An Association between Rainy Days with Clinical Dengue Fever in Dhaka, Bangladesh: Findings from a Hospital Based Study. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17249506. [PMID: 33353025 PMCID: PMC7765799 DOI: 10.3390/ijerph17249506] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 12/08/2020] [Accepted: 12/15/2020] [Indexed: 12/03/2022]
Abstract
Background: Dengue, a febrile illness, is caused by a Flavivirus transmitted by Aedes aegypti and Aedes albopictus mosquitoes. Climate influences the ecology of the vectors. We aimed to identify the influence of climatic variability on the occurrence of clinical dengue requiring hospitalization in Zone-5, a high incidence area of Dhaka City Corporation (DCC), Bangladesh. Methods and Findings: We retrospectively identified clinical dengue cases hospitalized from Zone-5 of DCC between 2005 and 2009. We extracted records of the four major catchment hospitals of the study area. The Bangladesh Meteorological Department (BMD) provided data on temperature, rainfall, and humidity of DCC for the study period. We used autoregressive integrated moving average (ARIMA) models for the number of monthly dengue hospitalizations. We also modeled all the climatic variables using Poisson regression. During our study period, dengue occurred throughout the year in Zone-5 of DCC. The median number of hospitalized dengue cases was 9 per month. Dengue incidence increased sharply from June, and reached its peak in August. One additional rainy day per month increased dengue cases in the succeeding month by 6% (RR = 1.06, 95% CI: 1.04–1.09). Conclusions: Dengue is transmitted throughout the year in Zone-5 of DCC, with seasonal variation in incidence. The number of rainy days per month is significantly associated with dengue incidence in the subsequent month. Our study suggests the initiation of campaigns in DCC for controlling dengue and other Aedes mosquito borne diseases, including Chikunguniya from the month of May each year. BMD rainfall data may be used to determine campaign timing.
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Affiliation(s)
- Kazi Mizanur Rahman
- International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka 1212, Bangladesh; (R.A.R.); (M.-U.I.K.); (M.S.S.); (M.W.R.); (S.M.B.); (P.K.S.)
- North Coast Public Health Unit, New South Wales Health, Lismore, NSW 2480, Australia
- University Centre for Rural Health, University of Sydney, Lismore, NSW 2480, Australia
- Correspondence:
| | - Yushuf Sharker
- Department of Biostatistics, Yale School of Public Health, New Haven, CT 06520-0834, USA;
| | - Reza Ali Rumi
- International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka 1212, Bangladesh; (R.A.R.); (M.-U.I.K.); (M.S.S.); (M.W.R.); (S.M.B.); (P.K.S.)
| | - Mahboob-Ul Islam Khan
- International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka 1212, Bangladesh; (R.A.R.); (M.-U.I.K.); (M.S.S.); (M.W.R.); (S.M.B.); (P.K.S.)
| | - Mohammad Sohel Shomik
- International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka 1212, Bangladesh; (R.A.R.); (M.-U.I.K.); (M.S.S.); (M.W.R.); (S.M.B.); (P.K.S.)
| | - Muhammad Waliur Rahman
- International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka 1212, Bangladesh; (R.A.R.); (M.-U.I.K.); (M.S.S.); (M.W.R.); (S.M.B.); (P.K.S.)
| | - Sk Masum Billah
- International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka 1212, Bangladesh; (R.A.R.); (M.-U.I.K.); (M.S.S.); (M.W.R.); (S.M.B.); (P.K.S.)
| | - Mahmudur Rahman
- Institute of Epidemiology, Disease Control and Research (IEDCR), Dhaka 1212, Bangladesh;
| | - Peter Kim Streatfield
- International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka 1212, Bangladesh; (R.A.R.); (M.-U.I.K.); (M.S.S.); (M.W.R.); (S.M.B.); (P.K.S.)
| | - David Harley
- Children’s Health Queensland Clinical Unit, Faculty of Medicine, The University of Queensland, Queensland Children’s Hospital, South Brisbane, QLD 4101, Australia;
| | - Stephen P. Luby
- Center for Innovation in Global Health, Stanford University, Stanford, CA 94305, USA;
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15
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Insecticide resistance status of Aedes aegypti in Bangladesh. Parasit Vectors 2020; 13:622. [PMID: 33317603 PMCID: PMC7734861 DOI: 10.1186/s13071-020-04503-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Accepted: 11/25/2020] [Indexed: 11/18/2022] Open
Abstract
Background Arboviral diseases, including dengue and chikungunya, are major public health concerns in Bangladesh where there have been unprecedented levels of transmission reported in recent years. The primary approach to control these diseases is to control the vector Aedes aegypti using pyrethroid insecticides. Although chemical control has long been practiced, no comprehensive analysis of Ae. aegypti susceptibility to insecticides has been conducted to date. The aim of this study was to determine the insecticide resistance status of Ae. aegypti in Bangladesh and investigate the role of detoxification enzymes and altered target site sensitivity as resistance mechanisms. Methods Eggs of Aedes mosquitoes were collected using ovitraps from five districts across Bangladesh and in eight neighborhoods of the capital city Dhaka, from August to November 2017. CDC bottle bioassays were conducted for permethrin, deltamethrin, malathion, and bendiocarb using 3- to 5-day-old F0–F2 non-blood-fed female mosquitoes. Biochemical assays were conducted to detect metabolic resistance mechanisms, and real-time PCR was performed to determine the frequencies of the knockdown resistance (kdr) mutations Gly1016, Cys1534, and Leu410. Results High levels of resistance to permethrin were detected in all Ae. aegypti populations, with mortality ranging from 0 to 14.8% at the diagnostic dose. Substantial resistance continued to be detected against higher (2×) doses of permethrin (5.1–44.4% mortality). Susceptibility to deltamethrin and malathion varied between populations while complete susceptibility to bendiocarb was observed in all populations. Significantly higher levels of esterase and oxidase activity were detected in most of the test populations as compared to the susceptible reference Rockefeller strain. A significant association was detected between permethrin resistance and the presence of Gly1016 and Cys1534 homozygotes. The frequency of kdr (knockdown resistance) alleles varied across the Dhaka Aedes populations. Leu410 was not detected in any of the tested populations. Conclusions The detection of widespread pyrethroid resistance and multiple resistance mechanisms highlights the urgency for implementing alternate Ae. aegypti control strategies. In addition, implementing routine monitoring of insecticide resistance in Ae. aegypti in Bangladesh will lead to a greater understanding of susceptibility trends over space and time, thereby enabling the development of improved control strategies.![]()
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16
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A Novel Sub-Lineage of Chikungunya Virus East/Central/South African Genotype Indian Ocean Lineage Caused Sequential Outbreaks in Bangladesh and Thailand. Viruses 2020; 12:v12111319. [PMID: 33213040 PMCID: PMC7698486 DOI: 10.3390/v12111319] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 11/12/2020] [Accepted: 11/13/2020] [Indexed: 11/17/2022] Open
Abstract
In recent decades, chikungunya virus (CHIKV) has become geographically widespread. In 2004, the CHIKV East/Central/South African (ECSA) genotype moved from Africa to Indian ocean islands and India followed by a large epidemic in Southeast Asia. In 2013, the CHIKV Asian genotype drove an outbreak in the Americas. Since 2016, CHIKV has re-emerged in the Indian subcontinent and Southeast Asia. In the present study, CHIKVs were obtained from Bangladesh in 2017 and Thailand in 2019, and their nearly full genomes were sequenced. Phylogenetic analysis revealed that the recent CHIKVs were of Indian Ocean Lineage (IOL) of genotype ECSA, similar to the previous outbreak. However, these CHIKVs were all clustered into a new distinct sub-lineage apart from the past IOL CHIKVs, and they lacked an alanine-to-valine substitution at position 226 of the E1 envelope glycoprotein, which enhances CHIKV replication in Aedes albopictus. Instead, all the re-emerged CHIKVs possessed mutations of lysine-to-glutamic acid at position 211 of E1 and valine-to-alanine at position 264 of E2. Molecular clock analysis suggested that the new sub-lineage CHIKV was introduced to Bangladesh around late 2015 and Thailand in early 2017. These results suggest that re-emerged CHIKVs have acquired different adaptations than the previous CHIKVs.
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17
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Paul KK, Salje H, Rahman MW, Rahman M, Gurley ES. Comparing insights from clinic-based versus community-based outbreak investigations: a case study of chikungunya in Bangladesh. Int J Infect Dis 2020; 97:306-312. [PMID: 32497797 PMCID: PMC7264925 DOI: 10.1016/j.ijid.2020.05.111] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Revised: 05/22/2020] [Accepted: 05/23/2020] [Indexed: 12/05/2022] Open
Abstract
A healthcare facility-based investigation of an outbreak would have been limited. Clinic-based case identification in this chikungunya outbreak would only have identified a quarter of all cases. Community-based household investigation involving only case households revealed that cases were more likely to be female and had lower educational attainment. Community-based investigation involving all households additionally identified clothing that exposed both limbs and traveling outside the district as risk factors. Outbreak investigations that identify cases in community and enroll controls from across the community should be used for better understanding of the risk factors as well as community transmission estimates.
Background Outbreak investigations typically focus their efforts on identifying cases that present at healthcare facilities. However, these cases rarely represent all cases in the wider community. In this context, community-based investigations may provide additional insight into key risk factors for infection, however, the benefits of these more laborious data collection strategies remains unclear. Methods We used different subsets of the data from a comprehensive outbreak investigation to compare the inferences we make in alternative investigation strategies. Results The outbreak investigation team interviewed 1,933 individuals from 460 homes. 364 (18%) of individuals had symptoms consistent with chikungunya. A theoretical clinic-based study would have identified 26% of the cases. Adding in community-based cases provided an overall estimate of the attack rate in the community. Comparison with controls from the same household revealed that those with at least secondary education had a reduced risk. Finally, enrolling residents from households across the community allowed us to characterize spatial heterogeneity of risk and identify the type of clothing usually worn and travel history as risk factors. This also revealed that household-level use of mosquito control was not associated with infection. Conclusions These findings highlight that while clinic-based studies may be easier to conduct, they only provide limited insight into the burden and risk factors for disease. Enrolling people who escaped from infection, both in the household and in the community allows a step change in our understanding of the spread of a pathogen and maximizes opportunities for control.
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Affiliation(s)
- Kishor Kumar Paul
- Infectious Diseases Division, International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh; The Kirby Institute, University of New South Wales, Sydney, Australia.
| | - Henrik Salje
- Mathematical Modeling of Infectious Diseases Unit, Institut Pasteur, Paris, France.
| | - Muhammad W Rahman
- Infectious Diseases Division, International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh.
| | - Mahmudur Rahman
- Infectious Diseases Division, International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh.
| | - Emily S Gurley
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA.
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18
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Anwar S, Taslem Mourosi J, Khan MF, Ullah MO, Vanakker OM, Hosen MJ. Chikungunya outbreak in Bangladesh (2017): Clinical and hematological findings. PLoS Negl Trop Dis 2020; 14:e0007466. [PMID: 32092073 PMCID: PMC7058364 DOI: 10.1371/journal.pntd.0007466] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Revised: 03/05/2020] [Accepted: 01/09/2020] [Indexed: 01/22/2023] Open
Abstract
Introduction A massive outbreak of chikungunya virus (CHIKV) occurred in Bangladesh during the period of April-September 2017, and over two million people were at risk of getting infected by the virus. A prospective cohort of viremic patients was constituted and analyzed to define the clinical, hematological, and long-term aspects of this outbreak. Methods A 35-day long comprehensive survey was conducted in two major, neighboring cities, Dhaka and Mymensingh. One-hundred and eighty-seven laboratory-confirmed CHIKV cases were enrolled in the cross-sectional cohort study. Additionally, a smaller group of 48 chikungunya patients was monitored for post-infection effects for 12 months. Results Clinical data revealed that a combination of fever and arthralgia (oligoarthralgia and/or polyarthralgia) was the cardinal hallmark (97.9% of cases) of the infection. Hematological analysis showed that irrespective of age and sex groups, CHIKV patients had a decreased level of hemoglobin (n = 64, p < 0.01) and elevated erythrocyte sedimentation rate (n = 131, p < 0.01). Besides, a significant portion of the patients represented abnormal values for RBC (n = 38, p = 0.0005) and WBC (n = 63, p < 0.01) counts. The post-infection study revealed that children had an early recovery from the infection compared to the adults. Moreover, post-infection weakness, successive relapse of arthralgic pain, and memory problems were the most significant aftereffects, which had an impact on the daily activities of patients. Conclusions This study represents a comprehensive overview of clinical and epidemiological features of the 2017 outbreak of CHIKV in Bangladesh as well as its chronic outcomes till the 12th month. It provides insights into the natural history of this disease, which may help to improve the management of CHIKV patients. The clinical profile, epidemiology, and the economic impacts during the acute phase of chikungunya infection have been studied quite rigorously. However, studies regarding the hematological features and chronic consequences are infrequent. In this study, we analyzed the clinical and hematological features of 187 chikungunya patients in the acute phase of the infection. Also, we monitored a smaller group of 48 patients until 12 months to study its post-infection consequences. Clinical data revealed that a combination of fever and joint pain (arthralgia) was the cardinal hallmark in the acute phase of the infection. Hematological analysis showed that CHIKV infection features a significantly reduced hemoglobin and remarkably elevated erythrocyte sedimentation rate. Besides, RBC and WBC counts, especially in children and females, were beyond the reference values. The post-infection consequence study unveiled that children recovered better from the infection compared to the adults. Further, post-infection weakness, successive relapse of joint pain and memory problems were the most significant aftereffects. Overall, the infection had a moderate to severe impact on the daily activities of the respondents. This study provides insights into the clinical and hematological aspects of chikungunya infection during the acute phase as well as describes an account for its chronic outcomes, which puts forward to the knowledge for clinicians and epidemiologists regarding the infection diversity and to help improve patient management.
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Affiliation(s)
- Saeed Anwar
- Department of Genetic Engineering and Biotechnology, School of Life Sciences, Shahjalal University of Science and Technology, Sylhet, Bangladesh
| | - Jarin Taslem Mourosi
- Department of Genetic Engineering and Biotechnology, School of Life Sciences, Shahjalal University of Science and Technology, Sylhet, Bangladesh
| | - Md. Fahim Khan
- Department of Genetic Engineering and Biotechnology, School of Life Sciences, Shahjalal University of Science and Technology, Sylhet, Bangladesh
| | - Mohammad Ohid Ullah
- Department of Statistics, School of Physical Sciences, Shahjalal University of Science and Technology, Sylhet, Bangladesh
| | | | - Mohammad Jakir Hosen
- Department of Genetic Engineering and Biotechnology, School of Life Sciences, Shahjalal University of Science and Technology, Sylhet, Bangladesh
- * E-mail:
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19
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Deeba IM, Hasan MM, Al Mosabbir A, Siam MHB, Islam MS, Raheem E, Hossain MS. Manifestations of Atypical Symptoms of Chikungunya during the Dhaka Outbreak (2017) in Bangladesh. Am J Trop Med Hyg 2020; 100:1545-1548. [PMID: 31038100 DOI: 10.4269/ajtmh.19-0122] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Chikungunya (CHIK) has emerged as a major public health concern worldwide. Recently, atypical manifestations are drawing special attention because these might be associated with various complications. Information on atypical manifestations of CHIK is still limited. Here, we analyzed a dataset of 1,326 cases from our recent Dhaka outbreak study to explore the demographics and distributions of atypical manifestations. About 80% of cases reported at least one atypical symptom. Among all atypical symptoms, the most common and unique atypical symptom was joint pain before fever (90.2%), occurred predominantly in female respondents. Other common symptoms included red eye (68.2%), oral ulcer (37.7%), and dermatological manifestations (27.1%). More than two-thirds of patients reported multiple atypical symptoms. Atypical manifestations were not significantly different across age groups, except ocular complications. This study would be an important resource for clinicians and epidemiologists to understand the diversity of Chikungunya infection and, thus, help in better patient management.
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Affiliation(s)
| | - Md Mahbub Hasan
- Department of Genetic Engineering and Biotechnology, University of Chittagong, Chittagong, Bangladesh.,Biomedical Research Foundation, Dhaka, Bangladesh
| | - Abdullah Al Mosabbir
- Sir Salimullah Medical College Mitford Hospital, Dhaka, Bangladesh.,Biomedical Research Foundation, Dhaka, Bangladesh
| | | | | | - Enayetur Raheem
- Department of Public Health Sciences, University of North Carolina at Charlotte, Charlotte, North Carolina.,Biomedical Research Foundation, Dhaka, Bangladesh
| | - Mohammad Sorowar Hossain
- Biomedical Research Foundation, Dhaka, Bangladesh.,Department of Environmental Management, Independent University, Bangladesh (IUB), Dhaka, Bangladesh
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20
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Taz TA, Kawsar M, Paul BK, Ahmed K, Bhuyian T. Characterizing topological properties and network pathway model among vector borne diseases. INFORMATICS IN MEDICINE UNLOCKED 2020. [DOI: 10.1016/j.imu.2020.100312] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
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21
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Rahman MM, Been Sayed SJ, Moniruzzaman M, Kabir AKMH, Mallik MU, Hasan MR, Siddique AB, Hossain MA, Uddin N, Hassan MM, Chowdhury FR. Clinical and Laboratory Characteristics of an Acute Chikungunya Outbreak in Bangladesh in 2017. Am J Trop Med Hyg 2019; 100:405-410. [PMID: 30526743 PMCID: PMC6367608 DOI: 10.4269/ajtmh.18-0636] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
From April to September 2017, Bangladesh experienced a huge outbreak of acute Chikungunya virus infection in Dhaka. This series describes the clinical and laboratory features of a large number of cases (690; 399 confirmed and 291 probable) suffered during that period. This observational study was carried out at Dhaka Medical College Hospital, Bangladesh. The median age of the patients at presentation was 38 years (IQR 30–50) with a male (57.3%) predominance. Hypertension and diabetes were the most common comorbidities. The mean (±SD) duration of fever was 3.7 (±1.4) days. Other common manifestations were arthralgia (99.2%), maculopapular rash (50.2%), morning stiffness (49.7%), joint swelling (48.5%), and headache (37.6%). Cases were confirmed by anti-chikungunya IgG (173; 43.3%), IgM (165; 42.3%), and reverse transcription polymerase chain reaction (44; 11.0%). Important laboratory findings include high erythrocyte sedimentation rate (156; 22.6%), raised serum glutamic pyruvic transaminase (73; 10.5%), random blood sugar (54; 7.8%), leukopenia (72; 10.4%), thrombocytopenia (41; 5.9%), and others. The oligo-articular (453; 66.1%) variety of joint involvement was significantly more common compared with the poly-articular (237; 34.5%) variety. Commonly involved joints were the wrist (371; 54.1%), small joints of the hand (321; 46.8%), ankle (251; 36.6%), knee (240; 35.0%), and elbow (228; 33.2%). Eleven cases were found to be complicated with neurological involvement and two of them died. Another patient died due to myocarditis. Public health experts, clinicians, and policymakers could use the results of this study to construct the future strategy tackling chikungunya in Bangladesh and other epidemic countries.
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Affiliation(s)
| | | | | | | | - Md Uzzwal Mallik
- Director General of Health Services, Dhaka, Bangladesh.,Department of Medicine, Dhaka Medical College, Dhaka, Bangladesh
| | - Md Rockyb Hasan
- Department of Medicine, Dhaka Medical College, Dhaka, Bangladesh
| | | | - Md Arman Hossain
- Department of Medicine, Dhaka Medical College, Dhaka, Bangladesh
| | - Nazim Uddin
- Department of Medicine, Dhaka Medical College, Dhaka, Bangladesh
| | - Md Mehedi Hassan
- Department of Medicine, Dhaka Medical College, Dhaka, Bangladesh
| | - Fazle Rabbi Chowdhury
- Department of Internal Medicine, Bangabandhu Sheikh Mujib Medical University, Dhaka, Bangladesh.,Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom.,Mahidol Oxford Tropical Medicine Research Unit, Mahidol University, Bangkok, Thailand.,Peter Medawar Building for Pathogen Research, University of Oxford, Oxford, United Kingdom
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22
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Rahman M, Yamagishi J, Rahim R, Hasan A, Sobhan A. East/Central/South African Genotype in a Chikungunya Outbreak, Dhaka, Bangladesh, 2017. Emerg Infect Dis 2019; 25:370-372. [PMID: 30666947 PMCID: PMC6346441 DOI: 10.3201/eid2502.180188] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
In 2017, an unprecedented increase in febrile illness was observed in Dhaka, Bangladesh. Real-time reverse transcription PCR confirmed that 603 (40.2%) of 1,500 cases were chikungunya fever. Phylogenetic analysis revealed circulation of the non-A226V East/Central/South African genotype of chikungunya virus in Bangladesh.
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23
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Mahumud RA, Alam K, Renzaho AMN, Sarker AR, Sultana M, Sheikh N, Rawal LB, Gow J. Changes in inequality of childhood morbidity in Bangladesh 1993-2014: A decomposition analysis. PLoS One 2019; 14:e0218515. [PMID: 31216352 PMCID: PMC6583970 DOI: 10.1371/journal.pone.0218515] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Accepted: 06/04/2019] [Indexed: 12/12/2022] Open
Abstract
INTRODUCTION Child health remains an important public health concern at the global level, with preventable diseases such as diarrheal disease, acute respiratory infection (ARI) and fever posing a large public health burden in low- and middle-income countries including Bangladesh. Improvements in socio-economic conditions have tended to benefit advantaged groups in societies, which has resulted in widespread inequalities in health outcomes. This study examined how socioeconomic inequality is associated with childhood morbidity in Bangladesh, and identified the factors affecting three illnesses: diarrhea, ARI and fever. MATERIALS AND METHODS A total of 43,860 sample observations from the Bangladesh Demographic and Health Survey, spanning a 22-year period (1993-2014), were analysed. Concentration curve and concentration index methods were used to evaluate changes in the degree of household wealth-related inequalities and related trends in childhood morbidity. Regression-based decomposition analyses were used to attribute the inequality disparities to individual determinants for the three selected causes of childhood morbidity. RESULTS The overall magnitude of inequality in relation to childhood morbidity has been declining slowly over the 22-year period. The magnitude of socio-economic inequality as a cause of childhood morbidity varied during the period. Decomposition analyses attributed the inequalities to poor maternal education attainment, inadequate pre-delivery care, adverse chronic undernutrition status and low immunisation coverage. CONCLUSIONS High rates of childhood morbidity were observed, although these have declined over time. Socio-economic inequality is strongly associated with childhood morbidity. Socio-economically disadvantaged communities need to be assisted and interventions should emphasise improvements of, and easier access to, health care services. These will be key to improving the health status of children in Bangladesh and should reduce economic inequality through improved health over time.
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Affiliation(s)
- Rashidul Alam Mahumud
- Health Economics and Policy Research, School of Commerce, Faculty of Business, Education, Law and Arts, Centre for Health, Informatics and Economic Research, University of Southern Queensland, Toowoomba, Queensland, Australia
- Health Economics and Financing Research, International Centre for Diarrhoeal Disease Research, Dhaka, Bangladesh
| | - Khorshed Alam
- Health Economics and Policy Research, School of Commerce, Faculty of Business, Education, Law and Arts, Centre for Health, Informatics and Economic Research, University of Southern Queensland, Toowoomba, Queensland, Australia
| | - Andre M. N. Renzaho
- School of Social Science and Psychology, Western Sydney University, Sydney Australia
| | - Abdur Razzaque Sarker
- Health Economics and Financing Research, International Centre for Diarrhoeal Disease Research, Dhaka, Bangladesh
- Department of Management Science, University of Strathclyde Business School, Glasgow, United Kingdom
| | - Marufa Sultana
- Health Economics and Financing Research, International Centre for Diarrhoeal Disease Research, Dhaka, Bangladesh
- School of Health & Social Development, Deakin University, Melbourne, Australia
| | - Nurnabi Sheikh
- Health Economics and Financing Research, International Centre for Diarrhoeal Disease Research, Dhaka, Bangladesh
| | - Lal B. Rawal
- School of Social Science and Psychology, Western Sydney University, Sydney Australia
| | - Jeff Gow
- Health Economics and Policy Research, School of Commerce, Faculty of Business, Education, Law and Arts, Centre for Health, Informatics and Economic Research, University of Southern Queensland, Toowoomba, Queensland, Australia
- School of Accounting, Economics and Finance, University of KwaZulu-Natal, Durban, South Africa
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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.
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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
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Haque F, Rahman M, Banu NN, Sharif AR, Jubayer S, Shamsuzzaman AKM, Alamgir ASM, Erasmus JH, Guzman H, Forrester N, Luby SP, Gurley ES. An epidemic of chikungunya in northwestern Bangladesh in 2011. PLoS One 2019; 14:e0212218. [PMID: 30856200 PMCID: PMC6411100 DOI: 10.1371/journal.pone.0212218] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Accepted: 01/29/2019] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND In November 2011, a government hospital physician in Shibganj sub-district of Bangladesh reported a cluster of patients with fever and joint pain or rash. A multi-disciplinary team investigated to characterize the outbreak; confirm the cause; and recommend control and prevention measures. METHODS Shibganj's residents with new onset of fever and joint pain or rash between 1 September and 15 December 2011 were defined as chikungunya fever (CHIKF) suspect cases. To estimate the attack rate, we identified 16 outpatient clinics in 16 selected wards across 16 unions in Shibganj and searched for suspect cases in the 80 households nearest to each outpatient clinic. One suspect case from the first 30 households in each ward was invited to visit the nearest outpatient clinic for clinical assessment and to provide a blood sample for laboratory testing and analyses. RESULTS We identified 1,769 CHIKF suspect cases from among 5,902 residents surveyed (30%). Their median age was 28 (IQR:15-42) years. The average attack rate in the sub-district was 30% (95% CI: 27%-33%). The lowest attack rate was found in children <5 years (15%). Anti-CHIKV IgM antibodies were detected by ELISA in 78% (264) of the 338 case samples tested. In addition to fever, predominant symptoms of serologically-confirmed cases included joint pain (97%), weakness (54%), myalgia (47%), rash (42%), itching (37%) and malaise (31%). Among the sero-positive patients, 79% (209/264) sought healthcare from outpatient clinics. CHIKV was isolated from two cases and phylogenetic analyses of full genome sequences placed these viruses within the Indian Ocean Lineage (IOL). Molecular analysis identified mutations in E2 and E1 glycoproteins and contained the E1 A226V point mutation. CONCLUSION The consistently high attack rate by age groups suggested recent introduction of chikungunya in this community. Mosquito control efforts should be enhanced to reduce the risk of continued transmission and to improve global health security.
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Affiliation(s)
- Farhana Haque
- Infectious Diseases Division (IDD), icddr,b, Dhaka, Bangladesh
- Institute of Epidemiology, Disease Control and Research (IEDCR), Dhaka, Bangladesh
| | - Mahmudur Rahman
- Institute of Epidemiology, Disease Control and Research (IEDCR), Dhaka, Bangladesh
| | - Nuzhat Nasreen Banu
- Institute of Epidemiology, Disease Control and Research (IEDCR), Dhaka, Bangladesh
| | - Ahmad Raihan Sharif
- Institute of Epidemiology, Disease Control and Research (IEDCR), Dhaka, Bangladesh
| | - Shamim Jubayer
- Institute of Epidemiology, Disease Control and Research (IEDCR), Dhaka, Bangladesh
| | - AKM Shamsuzzaman
- Institute of Epidemiology, Disease Control and Research (IEDCR), Dhaka, Bangladesh
| | - ASM Alamgir
- Institute of Epidemiology, Disease Control and Research (IEDCR), Dhaka, Bangladesh
| | - Jesse H. Erasmus
- Institute for Translational Sciences, University of Texas Medical Branch, Galveston, Texas, United States of America
| | - Hilda Guzman
- Institute for Human Infections and Immunity, University of Texas Medical Branch, Galveston, Texas, United States of America
| | - Naomi Forrester
- Department of Pathology, University of Texas Medical Branch, Galveston, Texas, United States of America
| | - Stephen P. Luby
- Infectious Diseases Division (IDD), icddr,b, Dhaka, Bangladesh
- Global Disease Detection Branch, Division of Global Health Protection, Center for Global Health, Centers for Disease Control and Prevention (CDC), Atlanta, Georgia, United States of America
| | - Emily S. Gurley
- Infectious Diseases Division (IDD), icddr,b, Dhaka, Bangladesh
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Mascarenhas M, Garasia S, Berthiaume P, Corrin T, Greig J, Ng V, Young I, Waddell L. A scoping review of published literature on chikungunya virus. PLoS One 2018; 13:e0207554. [PMID: 30496207 PMCID: PMC6264817 DOI: 10.1371/journal.pone.0207554] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Accepted: 11/01/2018] [Indexed: 12/13/2022] Open
Abstract
Chikungunya virus (CHIKV) has caused several major epidemics globally over the last two decades and is quickly expanding into new areas. Although this mosquito-borne disease is self-limiting and is not associated with high mortality, it can lead to severe, chronic and disabling arthritis, thereby posing a heavy burden to healthcare systems. The two main vectors for CHIKV are Aedes aegypti and Aedes albopictus (Asian tiger mosquito); however, many other mosquito species have been described as competent CHIKV vectors in scientific literature. With climate change, globalization and unfettered urban planning affecting many areas, CHIKV poses a significant public health risk to many countries. A scoping review was conducted to collate and categorize all pertinent information gleaned from published scientific literature on a priori defined aspects of CHIKV and its competent vectors. After developing a sensitive and specific search algorithm for the research question, seven databases were searched and data was extracted from 1920 relevant articles. Results show that CHIKV research is reported predominantly in areas after major epidemics have occurred. There has been an upsurge in CHIKV publications since 2011, especially after first reports of CHIKV emergence in the Americas. A list of hosts and vectors that could potentially be involved in the sylvatic and urban transmission cycles of CHIKV has been compiled in this scoping review. In addition, a repository of CHIKV mutations associated with evolutionary fitness and adaptation has been created by compiling and characterizing these genetic variants as reported in scientific literature.
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Affiliation(s)
- Mariola Mascarenhas
- National Microbiology Laboratory at Guelph, Public Health Agency of Canada, Guelph, Ontario, Canada
| | - Sophiya Garasia
- National Microbiology Laboratory at Guelph, Public Health Agency of Canada, Guelph, Ontario, Canada
| | - Philippe Berthiaume
- National Microbiology Laboratory at St. Hyacinthe, Public Health Agency of Canada, St. Hyacinthe, Quebec, Canada
| | - Tricia Corrin
- National Microbiology Laboratory at Guelph, Public Health Agency of Canada, Guelph, Ontario, Canada
| | - Judy Greig
- National Microbiology Laboratory at Guelph, Public Health Agency of Canada, Guelph, Ontario, Canada
| | - Victoria Ng
- National Microbiology Laboratory at Guelph, Public Health Agency of Canada, Guelph, Ontario, Canada
| | - Ian Young
- School of Occupational and Public Health, Ryerson University, Toronto, Ontario, Canada
| | - Lisa Waddell
- National Microbiology Laboratory at Guelph, Public Health Agency of Canada, Guelph, Ontario, Canada
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Kabir I, Dhimal M, Müller R, Banik S, Haque U. The 2017 Dhaka chikungunya outbreak. THE LANCET. INFECTIOUS DISEASES 2018; 17:1118. [PMID: 29115257 DOI: 10.1016/s1473-3099(17)30564-9] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Accepted: 09/08/2017] [Indexed: 11/30/2022]
Affiliation(s)
- Iqbal Kabir
- Department of Epidemiology, National Institute of Preventive and Social Medicine (NIPSOM), Dhaka, Bangladesh
| | - Megnath Dhimal
- Department of Environmental Toxicology and Medical Entomology, Institute for Occupational, Social and Environmental Medicine, Faculty of Medicine of the Goethe University, Frankfurt am Main, Germany
| | - Ruth Müller
- Department of Environmental Toxicology and Medical Entomology, Institute for Occupational, Social and Environmental Medicine, Faculty of Medicine of the Goethe University, Frankfurt am Main, Germany
| | - Swagata Banik
- Department of Public Health and Prevention Sciences, Baldwin Wallace University, Berea, OH 44017, USA
| | - Ubydul Haque
- Department of Public Health and Prevention Sciences, Baldwin Wallace University, Berea, OH 44017, USA.
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Risk factors for the presence of dengue vector mosquitoes, and determinants of their prevalence and larval site selection in Dhaka, Bangladesh. PLoS One 2018; 13:e0199457. [PMID: 29928055 PMCID: PMC6013170 DOI: 10.1371/journal.pone.0199457] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Accepted: 06/07/2018] [Indexed: 12/13/2022] Open
Abstract
Dengue viruses are responsible for over 100 million infections a year worldwide and are a public health concern in Bangladesh. Although risk of transmission is high, data on vector population characteristics are scanty in Bangladesh; therefore, a comprehensive prediction of the patterns of local virus transmission is not possible. Recognizing these gaps, multi-year entomological surveys were carried out in Dhaka, where the disease is most frequently reported. The specific objectives of the present study are threefold: i) to determine the risk factors for the presence of Aedes mosquitoes; ii) to identify the types of most productive and key containers; and iii) to estimate the effects of climatic factors on Aedes abundance in the city of Dhaka, Bangladesh. Entomological surveys were conducted in 12 out of 90 wards in Dhaka. These wards were selected using a probability proportional sampling procedure during the monsoon seasons in 2011, 2012 and 2013 and in the dry season in 2012. All containers inside and around sampled households were inspected for mosquito larvae and pupae, and containers were classified according to their relative size, use pattern, and materials of construction. During the study period (2011-2013), 12,680 larvae and pupae were collected. About 82% of the identified immature mosquitoes were Aedes aegypti, while the remainder were Ae. albopictus and other mosquito species. The largest number of immature mosquitoes was collected from tires and refrigerator trays during 2011 and 2012 monsoon seasons. Conversely, plastic drums were the most productive during the 2012 dry and 2013 monsoon season. Vehicle parts and discarded construction materials were the most efficient producers of Aedes mosquitoes in all surveys. The presence of Aedes mosquitoes was significantly (p < 0.05) higher in low socio-economic zones of Dhaka. Container location, presence of vegetation, and availability of shade for containers were also significantly associated with finding immature Aedes mosquitoes, based on multivariable analysis after confounder adjustment. Rainfall, temperature, and relative humidity also significantly affected the mean abundance of mosquitoes. Proper use, disposal, and recycling of the containers that effectively produce large numbers of Aedes vector mosquitoes may decrease the risk of arboviral transmission.
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Hossain MS, Hasan MM, Islam MS, Islam S, Mozaffor M, Khan MAS, Ahmed N, Akhtar W, Chowdhury S, Arafat SMY, Khaleque MA, Khan ZJ, Dipta TF, Asna SMZH, Hossain MA, Aziz KMS, Mosabbir AA, Raheem E. Chikungunya outbreak (2017) in Bangladesh: Clinical profile, economic impact and quality of life during the acute phase of the disease. PLoS Negl Trop Dis 2018; 12:e0006561. [PMID: 29874242 PMCID: PMC6025877 DOI: 10.1371/journal.pntd.0006561] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2018] [Revised: 06/29/2018] [Accepted: 05/24/2018] [Indexed: 11/30/2022] Open
Abstract
Background Chikungunya virus causes mosquito-transmitted infection that leads to extensive morbidity affecting substantial quality of life. Disease associated morbidity, quality of life, and financial loss are seldom reported in resources limited countries, such as Bangladesh. We reported the acute clinical profile, quality of life and consequent economic burden of the affected individuals in the recent chikungunya outbreak (May to September 2017) in Dhaka city, Bangladesh. Methods We conducted a cross-sectional study during the peak of chikungunya outbreak (July 24 to August 5, 2017) to document the clinical profiles of confirmed cases (laboratory test positive) and probable cases diagnosed by medical practitioners. Data related to clinical symptoms, treatment cost, loss of productivity due to missing work days, and quality of life during their first two-weeks of symptom onset were collected via face to face interview using a structured questionnaire. World Health Organization endorsed questionnaire was used to assess the quality of life. Results A total of 1,326 chikungunya cases were investigated. Multivariate analysis of major clinical variables showed no statistically significant differences between confirmed and probable cases. All the patients reported joint pain and fever. Other more frequently reported symptoms include headache, loss of appetite, rash, myalgia, and itching. Arthralgia was polyarticular in 56.3% of the patients. Notably, more than 70% patients reported joint pain as the first presenting symptom. About 83% of the patients reported low to very low overall quality of life. Nearly 30% of the patients lost more than 10 days of productivity due to severe arthropathy. Conclusions This study represents one of the largest samples studied so far around the world describing the clinical profile of chikungunya infection. Our findings would contribute to establish an effective syndromic surveillance system for early detection and timely public health intervention of future chikungunya outbreaks in resource-limited settings like Bangladesh. A major outbreak of chikungunya virus occurred for the first time in Dhaka, Bangladesh between May and September 2017. In this study, a face-to-face interview with a structured questionnaire was conducted to collect data to investigate the clinical symptoms, quality of life, and economic aspects of 1,326 chikungunya patients during the first two weeks of infection. The severity of the disease was similar to previously reported severe outbreaks elsewhere but joint pain prior to fever emerged as a unique symptom in the Dhaka outbreak. This unique clinical feature was consistent across age and sex of the patients. Some clinical symptoms varied with age. For instance, a higher proportion of skin rash were found among children (under 15) while morning stiffness, severity, and duration of pain were proportionally higher among other age groups. Joint swelling was most commonly noted in elderly patients (60+ years). About 83% of the patients reported low to very low overall quality of life (QoL) during first two weeks of chikungunya infection. Elderly patients reported lower average QoL scores compared to <60 years. Interestingly, housewives reported higher QoL score compared to those of businessmen and service holders. In particular, patients in the highest monthly income category bracket (BDT 50,000 per month; >$606 per month) reported the lowest average overall score. Nearly 95% of the patients have mostly confined to sickbed and approximately 30% of them lost more than 10 days of productivity due to severe arthropathy. Our study would contribute to establishing an effective syndromic surveillance system for early detection and timely public health intervention of future chikungunya outbreaks in resource-limited countries like Bangladesh.
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Affiliation(s)
- Mohammad Sorowar Hossain
- Biomedical Research Foundation, Dhaka, Bangladesh
- School of Environmental Science and Management, Independent University, Dhaka, Bangladesh
- Bangladesh University of Health Sciences, Dhaka, Bangladesh
- * E-mail:
| | - Md. Mahbub Hasan
- Biomedical Research Foundation, Dhaka, Bangladesh
- Department of Genetic Engineering and Biotechnology, University of Chittagong, Chittagong, Bangladesh
| | | | - Salequl Islam
- Biomedical Research Foundation, Dhaka, Bangladesh
- Department of Microbiology, Jahangirnagar University, Dhaka, Bangladesh
| | - Miliva Mozaffor
- Biomedical Research Foundation, Dhaka, Bangladesh
- Uttara Women Medical College, Dhaka, Bangladesh
| | - Md. Abdullah Saeed Khan
- Biomedical Research Foundation, Dhaka, Bangladesh
- Department of Medicine, Rajshahi Medical College Hospital, Rajshahi, Bangladesh
| | - Nova Ahmed
- Biomedical Research Foundation, Dhaka, Bangladesh
| | - Waheed Akhtar
- Biomedical Research Foundation, Dhaka, Bangladesh
- National Institute of Cancer Research and Hospital, Dhaka, Bangladesh
| | | | - S. M. Yasir Arafat
- Biomedical Research Foundation, Dhaka, Bangladesh
- Department of Psychiatry, Bangabandhu Sheikh Mujib Medical University, Dhaka, Bangladesh
| | - Md. Abdul Khaleque
- School of Environmental Science and Management, Independent University, Dhaka, Bangladesh
| | - Zohora Jameela Khan
- Biomedical Research Foundation, Dhaka, Bangladesh
- Dhaka Medical College and Hospital, Dhaka, Bangladesh
| | - Tashmim Farhana Dipta
- Biomedical Research Foundation, Dhaka, Bangladesh
- Bangladesh Institute of Research and Rehabilitation in Diabetes, Endocrine and Metabolic Disorders, Dhaka, Bangladesh
| | | | - Md. Akram Hossain
- Department of Microbiology, National Institute of Preventive & Social Medicine, Dhaka, Bangladesh
| | | | - Abdullah Al Mosabbir
- Biomedical Research Foundation, Dhaka, Bangladesh
- Sir Salimullah Medical College Mitford Hospital, Dhaka, Bangladesh
| | - Enayetur Raheem
- Biomedical Research Foundation, Dhaka, Bangladesh
- Department of Public Health Sciences, University of North Carolina at Charlotte, Charlotte, North Carolina, United States of America
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Contopoulos-Ioannidis D, Newman-Lindsay S, Chow C, LaBeaud AD. Mother-to-child transmission of Chikungunya virus: A systematic review and meta-analysis. PLoS Negl Trop Dis 2018; 12:e0006510. [PMID: 29897898 PMCID: PMC6075784 DOI: 10.1371/journal.pntd.0006510] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2018] [Revised: 08/03/2018] [Accepted: 05/08/2018] [Indexed: 01/06/2023] Open
Abstract
BACKGROUND Chikungunya virus (CHIKV) is an emerging arboviral infection with a global distribution and may cause fetal and neonatal infections after maternal CHIKV-infections during gestation. METHODOLOGY We performed a systematic review to evaluate the risk for: a) mother-to-child transmission (MTCT), b) antepartum fetal deaths (APFD), c) symptomatic neonatal disease, and d) neonatal deaths from maternal CHIKV-infections during gestation. We also recorded the neonatal clinical manifestations after such maternal infections (qualitative data synthesis). We searched PubMed (last search 3/2017) for articles, of any study design, with any of the above outcomes. We calculated the overall risk of MTCT, APFDs and risk of symptomatic neonatal disease by simple pooling. For endpoints with ≥5 events in more than one study, we also synthesized the data by random-effect-model (REM) meta-analysis. PRINCIPAL FINDINGS Among 563 identified articles, 13 articles from 8 cohorts were included in the quantitative data synthesis and 33 articles in the qualitative data synthesis. Most cohorts reported data only on symptomatic rather than on all neonatal infections. By extrapolation also of these data, the overall pooled-MTCT-risk across cohorts was at least 15.5% (206/1331), (12.6% by REMs). The pooled APFD-risk was 1.7% (20/1203); while the risk of CHIKV-confirmed-APFDs was 0.3% (3/1203). Overall, the pooled-risk of symptomatic neonatal disease was 15.3% (203/1331), (11.9% by REMs). The pooled risk of symptomatic disease was 50.0% (23/46) among intrapartum vs 0% (0/712) among antepartum/peripartum maternal infections. Infected newborns, from maternal infections during gestation were either asymptomatic or presented within their first week of life, but not at birth, with fever, irritability, hyperalgesia, diffuse limb edema, rashes and occasionally sepsis-like illness and meningoencephalitis. The pooled-risk of neonatal death was 0.6% (5/832) among maternal infections and 2.8% (5/182) among neonatal infections; long-term neurodevelopmental delays occurred in 50% of symptomatic neonatal infections. CONCLUSIONS/SIGNIFICANCE Published cohorts with data on the risk to the fetus and/or newborn from maternal CHIKV-infections during gestation were sparse compared to the number of recently reported CHIKV-infection outbreaks worldwide; however perinatal infections do occur, at high rates during intrapartum period, and can be related to neonatal death and long-term disabilities.
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Affiliation(s)
- Despina Contopoulos-Ioannidis
- Department of Pediatrics, Division of Infectious Diseases, Stanford University School of Medicine, Stanford, CA, United States of America
| | - Shoshana Newman-Lindsay
- Department of Pediatrics, Children's Hospital of Richmond, Virginia Commonwealth University, Richmond, VA, United States of America
| | - Camille Chow
- Department of Internal Medicine, St. Agnes Medical Center, Fresno, CA, United States of America
| | - A. Desiree LaBeaud
- Department of Pediatrics, Division of Infectious Diseases, Stanford University School of Medicine, Stanford, CA, United States of America
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Molecular characterization of chikungunya virus causing the 2017 outbreak in Dhaka, Bangladesh. New Microbes New Infect 2018; 24:14-16. [PMID: 29707212 PMCID: PMC5918166 DOI: 10.1016/j.nmni.2018.03.007] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2018] [Revised: 02/24/2018] [Accepted: 03/13/2018] [Indexed: 11/20/2022] Open
Abstract
Chikungunya viruses from the 2017 outbreak in Dhaka, Bangladesh, were analysed phylogenetically. E1 sequences from 21 strains belonged to the Indian Ocean clade of the East/Central/South African (ECSA) genotype, forming a novel cluster with latest South Asian strains. They lacked the A226V substitution.
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Zaman S, Hawlader MDH, Chowdhury AB, Ahsan GU. Psychiatric Morbidity of Chikungunya among Children in Bangladesh. Health (London) 2018. [DOI: 10.4236/health.2018.101007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Rahim MA, Uddin KN. Chikungunya: an emerging viral infection with varied clinical presentations in Bangladesh: Reports of seven cases. BMC Res Notes 2017; 10:410. [PMID: 28810894 PMCID: PMC5558730 DOI: 10.1186/s13104-017-2723-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2017] [Accepted: 07/29/2017] [Indexed: 11/16/2022] Open
Abstract
Background Chikungunya is an emerging and rapidly spreading viral infection in many parts of the world including Bangladesh. It shares many epidemiological and clinical characteristics with dengue. So, a sound knowledge is required for its detection and differentiation from dengue, specially in endemic regions. Case presentation We present seven confirmed cases of chikungunya having different clinical presentations occurring among middle aged males and females from different socio-economic background in Dhaka city, the capital of Bangladesh. All patients had fever and aches and pains. Less common features were rash, diarrhea, vomiting and altered liver biochemistry. Dengue was excluded in six patients. Paracetamol remained the mainstay of treatment during febrile periods, but over 50% of the patients had prolonged joint symptoms requiring non-steroidal anti-inflammatory drugs. Conclusions In spite of being a self-limiting disease, chikungunya may have different presentations and a protracted clinical course. During the febrile episode, exclusion of dengue is equally important. Physicians should be aware of the condition and public health initiatives are necessary to break the disease transmission.
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Affiliation(s)
- Muhammad Abdur Rahim
- Bangladesh Institute of Research and Rehabilitation in Diabetes, Endocrine and Metabolic Disorders (BIRDEM) General Hospital, 122 Kazi Nazrul Islam Avenue, Dhaka, Bangladesh.
| | - Khwaja Nazim Uddin
- Bangladesh Institute of Research and Rehabilitation in Diabetes, Endocrine and Metabolic Disorders (BIRDEM) General Hospital, 122 Kazi Nazrul Islam Avenue, Dhaka, Bangladesh
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Kajeguka DC, Msonga M, Schiøler KL, Meyrowitsch DW, Syrianou P, Tenu F, Alifrangis M, Mosha FW, Kavishe RA. Individual and environmental risk factors for dengue and chikungunya seropositivity in North-Eastern Tanzania. Infect Dis Health 2017. [DOI: 10.1016/j.idh.2017.04.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Wahid B, Ali A, Rafique S, Idrees M. Global expansion of chikungunya virus: mapping the 64-year history. Int J Infect Dis 2017; 58:69-76. [PMID: 28288924 DOI: 10.1016/j.ijid.2017.03.006] [Citation(s) in RCA: 168] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2017] [Revised: 03/03/2017] [Accepted: 03/07/2017] [Indexed: 10/20/2022] Open
Abstract
Chikungunya virus (CHIKV) is a mosquito-transmitted alphavirus that is emerging as a global threat because of the highly debilitating nature of the associated disease and unprecedented magnitude of its spread. Chikungunya originated in Africa and has since spread across the entire globe causing large numbers of epidemics that have infected millions of people in Asia, the Indian subcontinent, Europe, the Americas, and Pacific Islands. Phylogenetic analysis has identified four different genotypes of CHIKV: Asian, West African, East/Central/South African (ECSA), and Indian Ocean Lineage (IOL). In the absence of well-designed epidemiological studies, the aim of this review article was to summarize the global epidemiology of CHIKV and to provide baseline data for future research on the treatment, prevention, and control of this life-threatening disease.
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Affiliation(s)
- Braira Wahid
- Centre for Applied Molecular Biology, 87 West Canal Bank Road, Thokar Niaz Baig, University of the Punjab, Lahore, Pakistan.
| | - Amjad Ali
- Centre for Applied Molecular Biology, 87 West Canal Bank Road, Thokar Niaz Baig, University of the Punjab, Lahore, Pakistan.
| | - Shazia Rafique
- Centre for Applied Molecular Biology, 87 West Canal Bank Road, Thokar Niaz Baig, University of the Punjab, Lahore, Pakistan.
| | - Muhammad Idrees
- Centre for Applied Molecular Biology, 87 West Canal Bank Road, Thokar Niaz Baig, University of the Punjab, Lahore, Pakistan; Vice Chancellor Hazara University, Mansehra, Pakistan.
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Dhar-Chowdhury P, Paul KK, Haque CE, Hossain S, Lindsay LR, Dibernardo A, Brooks WA, Drebot MA. Dengue seroprevalence, seroconversion and risk factors in Dhaka, Bangladesh. PLoS Negl Trop Dis 2017; 11:e0005475. [PMID: 28333935 PMCID: PMC5380355 DOI: 10.1371/journal.pntd.0005475] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2016] [Revised: 04/04/2017] [Accepted: 03/09/2017] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND Dengue virus (DENV) activity has been reported in Dhaka, Bangladesh since the early 1960s with the greatest burden of dengue fever and dengue hemorrhagic fever cases observed in 2000. Since this time, the intensity of dengue activity has varied from year to year, and its determining factors remained relatively unknown. In light of such gaps in knowledge, the main objectives of this study were to determine the magnitude of seroprevalence and seroconversion among the surveyed population, and establish the individual/household level risk factors for the presence of DENV antibodies among all age groups of target populations in the city of Dhaka. METHODOLOGY/PRINCIPAL FINDINGS Considering the lack of fine scale investigations on the factors driving dengue activity in Bangladesh, a prospective cohort study involving serological surveys was undertaken with participant interviews and blood donation across the city of Dhaka in 2012. Study participants were recruited from 12 of 90 wards and blood samples were collected during both the pre-monsoon (n = 1125) and post-monsoon (n = 600) seasons of 2012. The findings revealed that the seroprevalence in all pre-monsoon samples was 80.0% (900/1125) while the seropositivity in the pre-monsoon samples that had paired post-monsoon samples was 83.3% (503/600). Of the 97 paired samples that were negative at the pre-monsoon time point, 56 were positive at the post-monsoon time point. This resulted in a seroprevalence of 93.2% (559/600) among individuals tested during the post-monsoon period. Seroprevalence trended higher with age with children exhibiting a lower seropositivity as compared to adults. Results from this study also indicated that DENV strains were the only flaviviruses circulating in Dhaka in 2012. A multivariate analysis revealed that age, possession of indoor potted plants, and types of mosquito control measures were significant factors associated with DENV seroprevalence; while attendance in public/mass gatherings, and use of mosquito control measures were significantly associated with DENV seroconversion after adjusting for all other variables. CONCLUSIONS/SIGNIFICANCE Our study suggests that there is a high level of endemic dengue virus circulation in the city of Dhaka which has resulted in significant DENV seroprevalence among its residents. Seropositivity increased with age, however, a substantial proportion of children are at risk for DENV infections. Our serological analysis also documents considerable DENV seroconversion among study participants which indicates that a large proportion of the population in the city of Dhaka were newly exposed to DENV during the study period (pre-and post-monsoon 2012). High levels of seroconversion suggest that there was an intense circulation of DENV in 2012 and this may have resulted in a significant risk for viral associated illness. Findings of our study further indicated that home-based interventions, such as removing indoor potted plants and increased bed net use, in addition to vector control measures in public parks, would reduce exposure to DENV and further decrease risk of viral associated disease.
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Affiliation(s)
- Parnali Dhar-Chowdhury
- Zoonotic Diseases and Special Pathogens, Public Health Agency of Canada, National Microbiology Laboratory, Winnipeg, Manitoba, Canada
- Natural Resources Institute, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Kishor Kumar Paul
- Emerging Infections, International Centre for Diarrheal Disease Research, Bangladesh, Dhaka, Bangladesh
| | - C. Emdad Haque
- Natural Resources Institute, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Shakhawat Hossain
- Department of Mathematics and Statistics, University of Winnipeg, Winnipeg, Manitoba, Canada
| | - L. Robbin Lindsay
- Zoonotic Diseases and Special Pathogens, Public Health Agency of Canada, National Microbiology Laboratory, Winnipeg, Manitoba, Canada
| | - Antonia Dibernardo
- Zoonotic Diseases and Special Pathogens, Public Health Agency of Canada, National Microbiology Laboratory, Winnipeg, Manitoba, Canada
| | - W. Abdullah Brooks
- Center for Global Health, Johns Hopkins University, Baltimore, Maryland, United States of America
| | - Michael A. Drebot
- Zoonotic Diseases and Special Pathogens, Public Health Agency of Canada, National Microbiology Laboratory, Winnipeg, Manitoba, Canada
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Faruque LI, Zaman RU, Gurley ES, Massung RF, Alamgir ASM, Galloway RL, Powers AM, Bai Y, Kosoy M, Nicholson WL, Rahman M, Luby SP. Prevalence and clinical presentation of Rickettsia, Coxiella, Leptospira, Bartonella and chikungunya virus infections among hospital-based febrile patients from December 2008 to November 2009 in Bangladesh. BMC Infect Dis 2017; 17:141. [PMID: 28193163 PMCID: PMC5307764 DOI: 10.1186/s12879-017-2239-6] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2016] [Accepted: 02/02/2017] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND We conducted a study to identify Rickettsia, Coxiella, Leptospira, Bartonella, and Chikungunya virus infections among febrile patients presenting at hospitals in Bangladesh. METHODS We collected blood samples from patients at six tertiary hospitals from December 2008 to November 2009 and performed laboratory tests at the United States Centers for Disease Control and Prevention (CDC). RESULTS Out of 720 enrolled patients, 263 (37%) were infected with Rickettsia; 132 patients had immunofluorescence antibody titer >64 against spotted fever, 63 patients against scrub typhus fever and 10 patients against typhus fever. Ten patients were identified with Coxiella. We isolated Leptospira from two patients and Bartonella from one patient. Ten patients had antibodies against Chikungunya virus. The proportion of patients who died was higher with rickettsial fever (5%) compared to those without a diagnosis of rickettsial infection (2%). None of the patients were initially diagnosed with rickettsial fever. CONCLUSIONS Rickettsial infections are frequent yet under-recognized cause of febrile illness in Bangladesh. Clinical guidelines should be revised so that local clinicians can diagnose rickettsial infections and provide appropriate drug treatment.
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Affiliation(s)
- Labib Imran Faruque
- International Centre for Diarrheal Diseases Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Rashid Uz Zaman
- International Centre for Diarrheal Diseases Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Emily S. Gurley
- International Centre for Diarrheal Diseases Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | | | - A. S. M. Alamgir
- Institute of Epidemiology, Disease Control and Research (IEDCR), Dhaka, Bangladesh
| | | | - Ann M. Powers
- Centers for Disease Control and Prevention (CDC), Atlanta, GA USA
| | - Ying Bai
- Centers for Disease Control and Prevention (CDC), Atlanta, GA USA
| | - Michael Kosoy
- Centers for Disease Control and Prevention (CDC), Atlanta, GA USA
| | | | - Mahmudur Rahman
- Institute of Epidemiology, Disease Control and Research (IEDCR), Dhaka, Bangladesh
| | - Stephen P. Luby
- International Centre for Diarrheal Diseases Research, Bangladesh (icddr,b), Dhaka, Bangladesh
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Nayak TK, Mamidi P, Kumar A, Singh LPK, Sahoo SS, Chattopadhyay S, Chattopadhyay S. Regulation of Viral Replication, Apoptosis and Pro-Inflammatory Responses by 17-AAG during Chikungunya Virus Infection in Macrophages. Viruses 2017; 9:v9010003. [PMID: 28067803 PMCID: PMC5294972 DOI: 10.3390/v9010003] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2016] [Revised: 12/14/2016] [Accepted: 12/15/2016] [Indexed: 12/15/2022] Open
Abstract
Chikungunya virus (CHIKV) infection has re-emerged as a major public health concern due to its recent worldwide epidemics and lack of control measures. Although CHIKV is known to infect macrophages, regulation of CHIKV replication, apoptosis and immune responses towards macrophages are not well understood. Accordingly, the Raw264.7 cells, a mouse macrophage cell line, were infected with CHIKV and viral replication as well as new viral progeny release was assessed by flow cytometry and plaque assay, respectively. Moreover, host immune modulation and apoptosis were studied through flow cytometry, Western blot and ELISA. Our current findings suggest that expression of CHIKV proteins were maximum at 8 hpi and the release of new viral progenies were remarkably increased around 12 hpi. The induction of Annexin V binding, cleaved caspase-3, cleaved caspase-9 and cleaved caspase-8 in CHIKV infected macrophages suggests activation of apoptosis through both intrinsic and extrinsic pathways. The pro-inflammatory mediators (TNF and IL-6) MHC-I/II and B7.2 (CD86) were also up-regulated during infection over time. Further, 17-AAG, a potential HSP90 inhibitor, was found to regulate CHIKV infection, apoptosis and pro-inflammatory cytokine/chemokine productions of host macrophages significantly. Hence, the present findings might bring new insight into the therapeutic implication in CHIKV disease biology.
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Affiliation(s)
- Tapas K Nayak
- School of Biological Sciences, National Institute of Science Education & Research, Bhubaneswar, HBNI, Jatni, Khurda, Odisha 752050, India.
| | - Prabhudutta Mamidi
- Infectious Disease Biology, Institute of Life Sciences, (Autonomous Institute of Department of Biotechnology, Government of India), Nalco Square, Bhubaneswar, Odisha 751023, India.
| | - Abhishek Kumar
- Infectious Disease Biology, Institute of Life Sciences, (Autonomous Institute of Department of Biotechnology, Government of India), Nalco Square, Bhubaneswar, Odisha 751023, India.
| | - Laishram Pradeep K Singh
- School of Biological Sciences, National Institute of Science Education & Research, Bhubaneswar, HBNI, Jatni, Khurda, Odisha 752050, India.
| | - Subhransu S Sahoo
- School of Biological Sciences, National Institute of Science Education & Research, Bhubaneswar, HBNI, Jatni, Khurda, Odisha 752050, India.
| | - Soma Chattopadhyay
- Infectious Disease Biology, Institute of Life Sciences, (Autonomous Institute of Department of Biotechnology, Government of India), Nalco Square, Bhubaneswar, Odisha 751023, India.
| | - Subhasis Chattopadhyay
- School of Biological Sciences, National Institute of Science Education & Research, Bhubaneswar, HBNI, Jatni, Khurda, Odisha 752050, India.
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Irish SR, Al-Amin HM, Alam MS, Harbach RE. A review of the mosquito species (Diptera: Culicidae) of Bangladesh. Parasit Vectors 2016; 9:559. [PMID: 27770829 PMCID: PMC5075421 DOI: 10.1186/s13071-016-1848-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2016] [Accepted: 10/13/2016] [Indexed: 11/10/2022] Open
Abstract
Background Diseases caused by mosquito-borne pathogens remain an important source of morbidity and mortality in Bangladesh. To better control the vectors that transmit the agents of disease, and hence the diseases they cause, and to appreciate the diversity of the family Culicidae, it is important to have an up-to-date list of the species present in the country. Original records were collected from a literature review to compile a list of the species recorded in Bangladesh. Results Records for 123 species were collected, although some species had only a single record. This is an increase of ten species over the most recent complete list, compiled nearly 30 years ago. Collection records of three additional species are included here: Anopheles pseudowillmori, Armigeres malayi and Mimomyia luzonensis. Conclusions While this work constitutes the most complete list of mosquito species collected in Bangladesh, further work is needed to refine this list and understand the distributions of those species within the country. Improved morphological and molecular methods of identification will allow the refinement of this list in years to come.
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Affiliation(s)
- Seth R Irish
- Entomology Branch, Division of Parasitic Diseases and Malaria, Center for Global Health, Centers for Disease Control and Prevention, 1600 Clifton Rd NE, Atlanta, GA, 30329, USA.
| | - Hasan Mohammad Al-Amin
- International Centre for Diarrhoeal Disease Research Bangladesh (icddr,b), 68 Shaheed Tajuddin Ahmed Sarani, Mohakhali, Dhaka, 1212, Bangladesh
| | - Mohammad Shafiul Alam
- International Centre for Diarrhoeal Disease Research Bangladesh (icddr,b), 68 Shaheed Tajuddin Ahmed Sarani, Mohakhali, Dhaka, 1212, Bangladesh
| | - Ralph E Harbach
- Department of Life Sciences, Natural History Museum, Cromwell Road, London, SW7 5BD, UK
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Wang C, Saborio S, Gresh L, Eswarappa M, Wu D, Fire A, Parameswaran P, Balmaseda A, Harris E. Chikungunya Virus Sequences Across the First Epidemic in Nicaragua, 2014-2015. Am J Trop Med Hyg 2015; 94:400-3. [PMID: 26643533 DOI: 10.4269/ajtmh.15-0497] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2015] [Accepted: 10/25/2015] [Indexed: 12/23/2022] Open
Abstract
Chikungunya is caused by the mosquito-borne arthrogenic alphavirus, chikungunya virus (CHIKV). Chikungunya was introduced into the Americas in late 2013 and Nicaragua in mid-2014. Here, we sequenced five imported and 30 autochthonous Nicaraguan CHIKV from cases identified in the first epidemic in the country between August 2014 and April 2015. One full-length and two partial genomic sequences were obtained by deep sequencing; Sanger methodology yielded 33 E1 sequences from five imported and 28 autochthonous cases. Phylogenetic analysis indicates that Nicaraguan CHIKV all belonged to the Asian genotype, Caribbean clade. Moreover, E1 gene sequences revealed accumulation of mutations in later months of the epidemic, including four silent mutations in 11 autochthonous cases and three non-synonymous mutations in three autochthonous cases. No mutations contributing to increased transmissibility by Aedes albopictus were identified in the E1 gene. This represents the most comprehensive set of CHIKV sequences available from the Americas to date.
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Affiliation(s)
- Chunling Wang
- Division of Infectious Diseases and Vaccinology, School of Public Health, University of California Berkeley, Berkeley, California; Laboratorio Nacional de Virología, Centro Nacional de Diagnóstico y Referencia, Ministry of Health, Managua, Nicaragua; Sustainable Sciences Institute, Managua, Nicaragua; Department of Genetics and Department of Pathology, Stanford University, Stanford, California
| | - Saira Saborio
- Division of Infectious Diseases and Vaccinology, School of Public Health, University of California Berkeley, Berkeley, California; Laboratorio Nacional de Virología, Centro Nacional de Diagnóstico y Referencia, Ministry of Health, Managua, Nicaragua; Sustainable Sciences Institute, Managua, Nicaragua; Department of Genetics and Department of Pathology, Stanford University, Stanford, California
| | - Lionel Gresh
- Division of Infectious Diseases and Vaccinology, School of Public Health, University of California Berkeley, Berkeley, California; Laboratorio Nacional de Virología, Centro Nacional de Diagnóstico y Referencia, Ministry of Health, Managua, Nicaragua; Sustainable Sciences Institute, Managua, Nicaragua; Department of Genetics and Department of Pathology, Stanford University, Stanford, California
| | - Meghana Eswarappa
- Division of Infectious Diseases and Vaccinology, School of Public Health, University of California Berkeley, Berkeley, California; Laboratorio Nacional de Virología, Centro Nacional de Diagnóstico y Referencia, Ministry of Health, Managua, Nicaragua; Sustainable Sciences Institute, Managua, Nicaragua; Department of Genetics and Department of Pathology, Stanford University, Stanford, California
| | - Diane Wu
- Division of Infectious Diseases and Vaccinology, School of Public Health, University of California Berkeley, Berkeley, California; Laboratorio Nacional de Virología, Centro Nacional de Diagnóstico y Referencia, Ministry of Health, Managua, Nicaragua; Sustainable Sciences Institute, Managua, Nicaragua; Department of Genetics and Department of Pathology, Stanford University, Stanford, California
| | - Andrew Fire
- Division of Infectious Diseases and Vaccinology, School of Public Health, University of California Berkeley, Berkeley, California; Laboratorio Nacional de Virología, Centro Nacional de Diagnóstico y Referencia, Ministry of Health, Managua, Nicaragua; Sustainable Sciences Institute, Managua, Nicaragua; Department of Genetics and Department of Pathology, Stanford University, Stanford, California
| | - Poornima Parameswaran
- Division of Infectious Diseases and Vaccinology, School of Public Health, University of California Berkeley, Berkeley, California; Laboratorio Nacional de Virología, Centro Nacional de Diagnóstico y Referencia, Ministry of Health, Managua, Nicaragua; Sustainable Sciences Institute, Managua, Nicaragua; Department of Genetics and Department of Pathology, Stanford University, Stanford, California
| | - Angel Balmaseda
- Division of Infectious Diseases and Vaccinology, School of Public Health, University of California Berkeley, Berkeley, California; Laboratorio Nacional de Virología, Centro Nacional de Diagnóstico y Referencia, Ministry of Health, Managua, Nicaragua; Sustainable Sciences Institute, Managua, Nicaragua; Department of Genetics and Department of Pathology, Stanford University, Stanford, California
| | - Eva Harris
- Division of Infectious Diseases and Vaccinology, School of Public Health, University of California Berkeley, Berkeley, California; Laboratorio Nacional de Virología, Centro Nacional de Diagnóstico y Referencia, Ministry of Health, Managua, Nicaragua; Sustainable Sciences Institute, Managua, Nicaragua; Department of Genetics and Department of Pathology, Stanford University, Stanford, California
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