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Ribeiro YP, Falcão LFM, Smith VC, de Sousa JR, Pagliari C, Franco ECS, Cruz ACR, Chiang JO, Martins LC, Nunes JAL, Vilacoert FSDS, Santos LCD, Furlaneto MP, Fuzii HT, Bertonsin Filho MV, da Costa LD, Duarte MIS, Furlaneto IP, Martins Filho AJ, Aarão TLDS, Vasconcelos PFDC, Quaresma JAS. Comparative Analysis of Human Hepatic Lesions in Dengue, Yellow Fever, and Chikungunya: Revisiting Histopathological Changes in the Light of Modern Knowledge of Cell Pathology. Pathogens 2023; 12:pathogens12050680. [PMID: 37242350 DOI: 10.3390/pathogens12050680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 05/02/2023] [Accepted: 05/03/2023] [Indexed: 05/28/2023] Open
Abstract
Arboviruses, such as yellow fever virus (YFV), dengue virus (DENV), and chikungunya virus (CHIKV), present wide global dissemination and a pathogenic profile developed in infected individuals, from non-specific clinical conditions to severe forms, characterised by the promotion of significant lesions in different organs of the harbourer, culminating in multiple organ dysfunction. An analytical cross-sectional study was carried out via the histopathological analysis of 70 samples of liver patients, collected between 2000 and 2017, with confirmed laboratory diagnoses, who died due to infection and complications due to yellow fever (YF), dengue fever (DF), and chikungunya fever (CF), to characterise, quantify, and compare the patterns of histopathological alterations in the liver between the samples. Of the histopathological findings in the human liver samples, there was a significant difference between the control and infection groups, with a predominance of alterations in the midzonal area of the three cases analysed. Hepatic involvement in cases of YF showed a greater intensity of histopathological changes. Among the alterations evaluated, cell swelling, microvesicular steatosis, and apoptosis were classified according to the degree of tissue damage from severe to very severe. Pathological abnormalities associated with YFV, DENV, and CHIKV infections showed a predominance of changes in the midzonal area. We also noted that, among the arboviruses studied, liver involvement in cases of YFV infection was more intense.
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Affiliation(s)
- Yasmin Pacheco Ribeiro
- Center for Biological and Health Sciences, State University of Pará, Belém 66087-662, PA, Brazil
| | - Luiz Fabio Magno Falcão
- Center for Biological and Health Sciences, State University of Pará, Belém 66087-662, PA, Brazil
| | - Vanessa Cavaleiro Smith
- Section of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Ministry of Health, Ananindeua 67030-000, PA, Brazil
| | - Jorge Rodrigues de Sousa
- Center for Biological and Health Sciences, State University of Pará, Belém 66087-662, PA, Brazil
| | - Carla Pagliari
- School of Medicine, São Paulo University, São Paulo 01246-903, SP, Brazil
| | | | - Ana Cecília Ribeiro Cruz
- Section of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Ministry of Health, Ananindeua 67030-000, PA, Brazil
| | - Janniffer Oliveira Chiang
- Section of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Ministry of Health, Ananindeua 67030-000, PA, Brazil
| | - Livia Carício Martins
- Section of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Ministry of Health, Ananindeua 67030-000, PA, Brazil
| | - Juliana Abreu Lima Nunes
- Section of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Ministry of Health, Ananindeua 67030-000, PA, Brazil
| | | | - Lais Carneiro Dos Santos
- Section of Pathology, Evandro Chagas Institute, Ministry of Health, Ananindeua 67030-000, PA, Brazil
| | | | - Hellen Thais Fuzii
- Tropical Medicine Center, Federal University of Pará, Belém 66055-240, PA, Brazil
| | | | - Luccas Delgado da Costa
- Section of Pathology, Evandro Chagas Institute, Ministry of Health, Ananindeua 67030-000, PA, Brazil
| | | | - Ismari Perini Furlaneto
- Center for Biological and Health Sciences, State University of Pará, Belém 66087-662, PA, Brazil
| | | | | | | | - Juarez Antônio Simões Quaresma
- Center for Biological and Health Sciences, State University of Pará, Belém 66087-662, PA, Brazil
- School of Medicine, São Paulo University, São Paulo 01246-903, SP, Brazil
- Tropical Medicine Center, Federal University of Pará, Belém 66055-240, PA, Brazil
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Niranjan R, Kishor S, Kumar A. Matrix metalloproteinases in the pathogenesis of dengue viral disease: Involvement of immune system and newer therapeutic strategies. J Med Virol 2021; 93:4629-4637. [PMID: 33634515 DOI: 10.1002/jmv.26903] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Revised: 02/17/2021] [Accepted: 02/22/2021] [Indexed: 12/17/2022]
Abstract
Globally, the burden due to dengue infection is increasing with a recent estimate of 96 million progressing to the disease every year. Dengue pathogenesis and the factors influencing it are not completely known. It is now widely speculated that there is an important role of matrix metalloproteinases (MMPs) in the initiation and progression of dengue pathogenesis; however, their exact roles are not fully understood. Overactivation of matrix metalloproteinases may contribute to the severity of dengue pathogenesis. Cytokines and various other mediators of inflammation interact with the vascular endothelium and matrix metalloproteinases may be one of the components among them. Extensive plasma leakage into tissue spaces may result in a shock. It is evident in the literature that MMP2 and MMP9 increase in dengue patients is correlated with the severity of the disease; however, the underlying mechanism is still unknown. Activation of innate cells and adaptive immune cells which include, B and T cells, macrophages or monocytes and dendritic cells also contribute to the dengue pathology. Newer therapeutic strategies include microRNAs, such as miR-134 (targets MMP3 and MMP1) and MicroRNA-320d, (targets MMP/TIMP proteolytic system). The use of antibodies-based therapeutics like (Andecaliximab; anti-matrix metalloproteinase-9 antibody) is also suggested against MMPs in dengue. In this review, we summarize some recent developments associated with the involvement of immune cells and their mediators associated with the matrix metalloproteinases mediated dengue pathogenesis. We highlight that, there is still very little knowledge about the MMPs in dengue pathogenesis which needs attention and extensive investigations.
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Affiliation(s)
- Rituraj Niranjan
- Immunology Laboratory, ICMR-Vector Control Research Center, Puducherry, India
| | - Sumitha Kishor
- Immunology Laboratory, ICMR-Vector Control Research Center, Puducherry, India
| | - Ashwani Kumar
- Immunology Laboratory, ICMR-Vector Control Research Center, Puducherry, India
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3
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Bezerra JMT, Sousa SCD, Tauil PL, Carneiro M, Barbosa DS. Entry of dengue virus serotypes and their geographic distribution in Brazilian federative units: a systematic review. REVISTA BRASILEIRA DE EPIDEMIOLOGIA 2021; 24:e210020. [PMID: 33825776 DOI: 10.1590/1980-549720210020] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Accepted: 11/09/2020] [Indexed: 11/22/2022] Open
Abstract
OBJECTIVE To describe the entry of Dengue virus (DENV) serotypes in Brazil and its federative units. METHODS A systematic review of studies published between 1980 and 2018 in databases and in the gray literature was performed using descriptors related to the years of entry of the DENV serotypes. Additionally, experts and official sources of information (Brazilian Ministry of Health) were consulted. RESULTS From 100 publications selected for the systematic review, 26 addressed the entry of DENV serotypes in the North region of the country, 33 in the Northeast, 24 in the Southeast, 14 in the Central-West, and five in the South. DENV-1 and DENV-4 were introduced in the North region in 1981. DENV-2 was introduced in the Southeast in 1990. DENV-3 was introduced in the North in 1999. CONCLUSION The rapid expansion of dengue throughout the Brazilian territory was verified from the second half of the 1980s, with the gradual entry of the four serotypes, which resulted in the emergence of epidemics of arbovirus, which are currently verified in the country. Considering the epidemiology of the disease, more information should be disseminated and published in the wide-ranging scientific literature for a better understanding of the spread and circulation of DENV serotypes.
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Affiliation(s)
| | - Selma Costa de Sousa
- Department of Occupational Health Care, Universidade Federal de Minas Gerais - Belo Horizonte (MG), Brazil.,Laboratory of Epidemiology of Infectious and Parasitic Diseases, Department of Parasitology, Biological Sciences Institute, Universidade Federal de Minas Gerais - Belo Horizonte (MG), Brazil
| | - Pedro Luiz Tauil
- School of Medicine, Graduate Program in Tropical Medicine, Universidade de Brasília - Brasília (DF), Brazil
| | - Mariângela Carneiro
- Laboratory of Epidemiology of Infectious and Parasitic Diseases, Department of Parasitology, Biological Sciences Institute, Universidade Federal de Minas Gerais - Belo Horizonte (MG), Brazil.,Graduate Program in Health Sciences, Infectious Disease and Tropical Medicine, Universidade Federal de Minas Gerais - Belo Horizonte (MG), Brazil
| | - David Soeiro Barbosa
- Laboratory of Epidemiology of Infectious and Parasitic Diseases, Department of Parasitology, Biological Sciences Institute, Universidade Federal de Minas Gerais - Belo Horizonte (MG), Brazil
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4
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Lim JK, Carabali M, Camacho E, Velez DC, Trujillo A, Egurrola J, Lee KS, Velez ID, Osorio JE. Epidemiology and genetic diversity of circulating dengue viruses in Medellin, Colombia: a fever surveillance study. BMC Infect Dis 2020; 20:466. [PMID: 32615988 PMCID: PMC7331258 DOI: 10.1186/s12879-020-05172-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2019] [Accepted: 06/17/2020] [Indexed: 12/29/2022] Open
Abstract
Background Dengue fever is a major public health problem in Colombia. A fever surveillance study was conducted for evaluation of the clinical, epidemiological, and molecular patterns of dengue, prior to Chikungunya and Zika epidemics. Methods In November 2011–February 2014, a passive facility-based surveillance was implemented in Santa Cruz Hospital, Medellin, and enrolled eligible febrile patients between 1 and 65 years-of-age. Acute and convalescent blood samples were collected 10–21 days apart and tested for dengue using IgM/IgG ELISA. RNA was extracted for serotyping using RT-PCR on acute samples and genotyping was performed by sequencing. Results Among 537 febrile patients enrolled during the study period, 29% (n = 155) were identified to be dengue-positive. Only 7% of dengue cases were hospitalized, but dengue-positive patients were 2.6 times more likely to be hospitalized, compared to non-dengue cases, based on a logistic regression. From those tested with RT-PCR (n = 173), 17 were dengue-confirmed based on PCR and/or virus isolation showing mostly DENV-3 (n = 9) and DENV-4 (n = 7) with 1 DENV-1. Genotyping results showed that: DENV-1 isolate belongs to the genotype V or American/African genotype; DENV-3 isolates belong to genotype III; and DENV-4 isolates belong to the II genotype and specifically to the IIb sub-genotype or linage. Conclusions Our surveillance documented considerable dengue burden in Santa Cruz comuna during non-epidemic years, and genetic diversity of circulating DENV isolates, captured prior to Chikungunya epidemic in 2014 and Zika epidemic in 2015. Our study findings underscore the need for continued surveillance and monitoring of dengue and other arboviruses and serve as epidemiological and molecular evidence base for future studies to assess changes in DENV transmission in Medellin, given emerging and re-emerging arboviral diseases in the region.
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Affiliation(s)
- Jacqueline Kyungah Lim
- Dengue Vaccine Initiative, International Vaccine Institute, SNU Research Park, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea.
| | - Mabel Carabali
- Dengue Vaccine Initiative, International Vaccine Institute, SNU Research Park, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea.,Department of Epidemiology, Biostatistics and Occupational Health, McGill University, 845 Sherbrooke St., W, Montreal, Quebec, H3A 0G4, Canada
| | - Erwin Camacho
- Investigaciones Biomedicas, Universidad de Sucre, Cra 28 # 5-267, Barrio Puerta Roja, Sincelejo, Sucre, Colombia
| | - Diana Carolina Velez
- Programa de Estudio y Control de Enfermedades Tropicales (PECET), Universidad de Antioquia, calle 67 No. 53, 108, Medellín, Antioquia, Colombia
| | - Andrea Trujillo
- Programa de Estudio y Control de Enfermedades Tropicales (PECET), Universidad de Antioquia, calle 67 No. 53, 108, Medellín, Antioquia, Colombia
| | - Jorge Egurrola
- Programa de Estudio y Control de Enfermedades Tropicales (PECET), Universidad de Antioquia, calle 67 No. 53, 108, Medellín, Antioquia, Colombia
| | - Kang-Sung Lee
- Dengue Vaccine Initiative, International Vaccine Institute, SNU Research Park, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Ivan Dario Velez
- Programa de Estudio y Control de Enfermedades Tropicales (PECET), Universidad de Antioquia, calle 67 No. 53, 108, Medellín, Antioquia, Colombia
| | - Jorge E Osorio
- Department of Pathobiological Sciences, University of Wisconsin, 500 Lincoln Dr, Madison, WI, 53706, USA
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Yu J, Li X, He X, Liu X, Zhong Z, Xie Q, Zhu L, Jia F, Mao Y, Chen Z, Wen Y, Ma D, Yu L, Zhang B, Zhao W, Xiao W. Epidemiological and Evolutionary Analysis of Dengue-1 Virus Detected in Guangdong during 2014: Recycling of Old and Formation of New Lineages. Am J Trop Med Hyg 2020; 101:870-883. [PMID: 31392945 PMCID: PMC6779206 DOI: 10.4269/ajtmh.18-0951] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
The incidence of dengue is increasing in Guangdong, China, with the largest outbreak to date in 2014. Widespread awareness of epidemiological and molecular characteristics of the dengue virus (DENV) is required. In 2014, we isolated the virus from patients and sequenced its genome. The sequences of DENV isolated from Guangdong and other countries screened since 2005 were studied to establish molecular evolutionary databases along with epidemiological data to explore its epidemiological, phylogenetic, and molecular characteristics. Causes underlying the occurrence of the dengue epidemic included importation and localization of the virus. The number of indigenous cases significantly exceeded that of imported cases. Dengue virus 1 is the most important serotype and caused the long-term epidemic locally. Based on the data available since 2005, DENV1 was divided into three genotypes (I, IV, and V). Only genotypes I and V were detected in 2014. In 2014, an epidemic involving old lineages of DENV1 genotype V occurred after 2 years of silence. The genotype was previously detected from 2009 to 2011. Genotype I, which caused recent epidemics, demonstrated a continuation of new lineages, and a predictive pattern of molecular evolution since 2005 among the four lineages was present. The DENV isolated from Guangdong was closely related to those causing large-scale epidemics in neighboring countries, suggesting the possibility of its import from these countries. The lack of sufficient epidemiological data and evidence on the local mosquito-borne DENV emphasizes the importance of studying the molecular evolutionary features and establishing a well-established phylogenetic tree for dengue prevention and control in Guangdong.
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Affiliation(s)
- Jianhai Yu
- Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou, China
| | - Xujuan Li
- Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou, China
| | - Xiaoen He
- Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou, China
| | - Xuling Liu
- Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou, China
| | - Zhicheng Zhong
- Guangdong Women and Children's Hospital, Guangzhou Medical University, Guangzhou, China
| | - Qian Xie
- Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou, China
| | - Li Zhu
- Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou, China
| | - Fengyun Jia
- Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou, China
| | - Yingxue Mao
- Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou, China
| | - Zongqiu Chen
- Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou, China
| | - Ying Wen
- Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou, China
| | - Danjuan Ma
- Guangdong Women and Children's Hospital, Guangzhou Medical University, Guangzhou, China
| | - Linzhong Yu
- Department of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Bao Zhang
- Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou, China
| | - Wei Zhao
- Guangzhou Key Laboratory of Drug Research for Emerging Virus Prevention and Treatment, School of Pharmacy, Southern Medical University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou, China
| | - Weiwei Xiao
- School of Public Health, Guangdong Medical University, Dongguan, China.,Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou, China
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Hamel R, Surasombatpattana P, Wichit S, Dauvé A, Donato C, Pompon J, Vijaykrishna D, Liegeois F, Vargas RM, Luplertlop N, Missé D. Phylogenetic analysis revealed the co-circulation of four dengue virus serotypes in Southern Thailand. PLoS One 2019; 14:e0221179. [PMID: 31415663 PMCID: PMC6695175 DOI: 10.1371/journal.pone.0221179] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Accepted: 07/31/2019] [Indexed: 12/15/2022] Open
Abstract
Dengue fever is caused by dengue viruses (DENV) from the Flavivirus genus and is the most prevalent arboviral disease. DENV exists in four immunogenically distinct and genetically-related serotypes (DENV-1 to 4), each subdivided in genotypes. Despite the endemicity of all four DENV serotypes in Thailand, no prior study has characterized the circulation of DENV in the southern provinces of the country. To determine the genetic diversity of DENV circulating in Southern Thailand in 2015 and 2016, we investigated 46 viruses from 182 patients' sera confirmed positive for DENV by serological and Nested RT-PCR tests. Our dataset included 2 DENV-1, 20 DENV-2, 9 DENV-3 and 15 DENV-4. Phylogenetic analysis was performed on viral envelop sequences. This revealed that part of the identified genotypes from DENV-1 and DENV-4 had been predominant in Asia (genotype I for both serotypes), while genotype II for DENV-4 and the Cosmopolitan genotype DENV-2 were also circulating. Whereas DENV-3 genotype II had been predominantly detected in South East Asia during the previous decades, we found genotype III and genotype I in Southern Thailand. All DENV genotype identified in this study were closely related to contemporary strains circulating in Southeast Asian countries, emphasizing the regional circulation of DENV. These results provide new insights into the co-circulation of all four DENV serotypes in Southern Thailand, confirming the hyperendemicity of DENV in the region. These findings also suggest a new trend of dissemination for some DENV serotypes with a possible shift in genotype distribution; as recently observed in other Asian countries.
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Affiliation(s)
- Rodolphe Hamel
- MIVEGEC UMR 224, Université de Montpellier, IRD, CNRS, Montpellier, France.,Department of Microbiology and Immunology, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | | | | | - Alexandra Dauvé
- Department of Entomology, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Celeste Donato
- Department of Microbiology, Biomedicine Discovery Institute, Monash University, Clayton, Australia
| | - Julien Pompon
- MIVEGEC UMR 224, Université de Montpellier, IRD, CNRS, Montpellier, France.,Programme in Emerging Infectious Diseases, Duke-NUS Medical School, Singapore, Singapore
| | - Dhanasekaran Vijaykrishna
- Department of Microbiology, Biomedicine Discovery Institute, Monash University, Clayton, Australia.,Programme in Emerging Infectious Diseases, Duke-NUS Medical School, Singapore, Singapore
| | - Florian Liegeois
- MIVEGEC UMR 224, Université de Montpellier, IRD, CNRS, Montpellier, France
| | - Ronald Morales Vargas
- Department of Entomology, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Natthanej Luplertlop
- Department of Microbiology and Immunology, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Dorothée Missé
- MIVEGEC UMR 224, Université de Montpellier, IRD, CNRS, Montpellier, France
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Borkakoty B, Das M, Sarma K, Jakharia A, Das PK, Bhattacharya C, Apum B, Biswas D. Molecular characterisation and phylogenetic analysis of dengue outbreak in Pasighat, Arunachal Pradesh, Northeast India. Indian J Med Microbiol 2018; 36:37-42. [PMID: 29735824 DOI: 10.4103/ijmm.ijmm_17_30] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Background and Objectives Dengue is one of the most prevalent arboviral diseases in the world with 390 million dengue infections per year. In this study, we report the molecular characterisation of dengue outbreak in Pasighat, Arunachal Pradesh, Northeast India during 2015. Subjects and Methods : A total of 613 dengue-suspected cases were screened for dengue virus by dengue NS1 Ag and anti-dengue IgM antibody depending on the duration of sample collection and onset of symptom. Further, molecular characterisation was done by amplifying the C-PrM region by real-time polymerase chain reaction followed by phylogenetic analysis. Results Molecular characterisation revealed that the dengue outbreak was predominantly due to dengue virus serotype-1 (DENV-1) (90.9%) while DENV-2 was detected in 7.5% of samples. Co-infection of DENV-1 and DENV-2 was detected in one case. Phylogenetic analysis of the DENV-1 strains with the prototype revealed that the DENV-1 strains were grouped within genotype III. Similarly, DENV-2 strains were clustered within genotype IV. The study revealed a change in the predominant serotype in recent years with DENV-3 in 2012 to DENV-1, 2, 3 and 4 in 2014 to DENV-1 in 2015 in the study region. A unique L24M mutation was observed in the DENV-1 strains of Arunachal Pradesh which was absent in all the circulating strains in India except one strain from the state of Kerala in South India. Marked variation within the DENV-2 strains was observed at A102V and I163V in one strain similar to earlier circulating isolates in India. Conclusions The present study reveals a shift in the serotype dominance in the study region. As serotype shifts and secondary infection with a heterologous DENV serotype are frequently associated with disease severity, there is an urgent need for sustained monitoring of the circulating serotypes and enhanced surveillance operations, especially in the monsoon and post-monsoon periods to prevent large-scale, severe dengue outbreaks in this region.
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Affiliation(s)
| | - Mandakini Das
- ICMR- Regional Medical Research Centre, N. E. Region, Dibrugarh, Assam, India
| | - Kishore Sarma
- ICMR- Regional Medical Research Centre, N. E. Region, Dibrugarh, Assam, India
| | - Aniruddha Jakharia
- ICMR- Regional Medical Research Centre, N. E. Region, Dibrugarh, Assam, India
| | - Palash Kumar Das
- ICMR- Regional Medical Research Centre, N. E. Region, Dibrugarh, Assam, India
| | | | - Basumoti Apum
- Department of Microbiology, General Hospital, Pasighat, East Siang, Arunachal Pradesh, India
| | - Dipankar Biswas
- ICMR- Regional Medical Research Centre, N. E. Region, Dibrugarh, Assam, India
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8
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Dutra KR, Drumond BP, de Rezende IM, Nogueira ML, de Oliveira Lopes D, Calzavara Silva CE, Siqueira Ferreira JM, Dos Santos LL. Molecular surveillance of dengue in Minas Gerais provides insights on dengue virus 1 and 4 circulation in Brazil. J Med Virol 2016; 89:966-973. [PMID: 27926790 DOI: 10.1002/jmv.24729] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/03/2016] [Indexed: 11/11/2022]
Abstract
Dengue, caused by any of the four types of Dengue virus (DENV) is the most important arbovirus in the world. In this study we performed a molecular surveillance of dengue during the greatest dengue outbreak that took place in Divinópolis, Minas Gerais state, Southeast Brazil, in 2013. Samples from 100 patients with clinical symptoms of dengue were studied and 26 were positive. The capsid/premembrane (CprM) and envelope gene sequences of some samples were amplified and sequenced. Molecular analyses demonstrated that two DENV-1 lineages, belonging to genotype V were introduced and co-circulated in Divinópolis. When compared to each other, those lineages presented high genetic diversity and showed unique amino acids substitutions in the envelope protein, including in domains I, II, and III. DENV-4 strains from Divinópolis clustered within genotype IIb and the most recent common ancestor was probably introduced into the city three years before the 2013 epidemic. Here we demonstrated for the first time the circulation of DENV-4 and the co-circulation of two DENV-1 lineages in Midwest region of Minas Gerais, Brazil. Moreover our analysis indicated the introduction of five DENV-1 lineages, genotype V into Brazil, in different times. J. Med. Virol. 89:966-973, 2017. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Karina Rocha Dutra
- Campus Centro-Oeste Dona Lindu, Universidade Federal de São João Del Rei (UFSJ), Divinópolis, Minas Gerais, Brazil
| | - Betânia Paiva Drumond
- Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, Minas Gerais, Brazil.,Instituto de Ciências Biológicas, Universidade Federal de Juiz de Fora (UFJF), Juiz de Fora, Minas Gerais, Brazil
| | - Izabela Maurício de Rezende
- Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, Minas Gerais, Brazil.,Instituto de Ciências Biológicas, Universidade Federal de Juiz de Fora (UFJF), Juiz de Fora, Minas Gerais, Brazil
| | | | - Débora de Oliveira Lopes
- Campus Centro-Oeste Dona Lindu, Universidade Federal de São João Del Rei (UFSJ), Divinópolis, Minas Gerais, Brazil
| | | | | | - Luciana Lara Dos Santos
- Campus Centro-Oeste Dona Lindu, Universidade Federal de São João Del Rei (UFSJ), Divinópolis, Minas Gerais, Brazil
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9
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Mota MTDO, Terzian AC, Silva MLCR, Estofolete C, Nogueira ML. Mosquito-transmitted viruses - the great Brazilian challenge. Braz J Microbiol 2016; 47 Suppl 1:38-50. [PMID: 27818091 PMCID: PMC5156505 DOI: 10.1016/j.bjm.2016.10.008] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2016] [Accepted: 10/07/2016] [Indexed: 12/20/2022] Open
Abstract
Arboviruses pose a serious threat to public health worldwide, overloading the healthcare system and causing economic losses. These viruses form a very diverse group, and in Brazil, arboviruses belonging to the families Flaviviridae and Togaviridae are predominant. Unfortunately, the number of arboviruses increases in proportion with factors such as deforestation, poor sanitation, climate changes, and introduction of new viruses like Chikungunya virus and Zika virus. In Brazil, dengue is endemic, along with the presence of other arboviruses. The situation is complicated by the scarcity of diagnostic infrastructure and the absence of approved vaccines for these diseases. Disease control, thus, relies solely on vector control. Therefore, enhanced clinical knowledge and improved general awareness about these arboviruses are indispensable to tackle diagnostic inadequacies.
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Affiliation(s)
| | - Ana Carolina Terzian
- Faculdade de Medicina de São José do Rio Preto (FAMERP), São José do Rio Preto, SP, Brazil
| | | | - Cássia Estofolete
- Faculdade de Medicina de São José do Rio Preto (FAMERP), São José do Rio Preto, SP, Brazil
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