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Bastos-Soares EA, da Silva Morais MS, Funes-Huacca M, Sousa RMO, Brilhante-Da-Silva N, Roberto SA, Prado NDR, Dos Santos CND, Marinho ACM, Soares AM, Stabeli RG, Pereira SDS, Fernandes CFC. Single-Domain Antibody-Gold Nanoparticle Bioconjugates as Immunosensors for the Detection of Hantaviruses. Mol Diagn Ther 2024:10.1007/s40291-024-00713-1. [PMID: 38796660 DOI: 10.1007/s40291-024-00713-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/23/2024] [Indexed: 05/28/2024]
Abstract
INTRODUCTION Hantavirus, a zoonotic pathogen, causes severe syndromes like hemorrhagic fever with renal syndrome (HFRS), sometimes fatal in humans. Considering the importance of detecting the hantavirus antigen, the construction of an immunosensor is essential. The structural and functional characteristics of camelid nanobodies (VHHs) encourage their application in the areas of nanobiotechnology, therapeutics, diagnostics, and basic research. Therefore, this study aimed to standardize stable bioconjugates using gold nanoparticles (AuNPs) and VHHs, in order to develop immunobiosensors for the diagnosis of hantavirus infection. METHODS Immobilized metal affinity chromatography (IMAC) was performed to obtain purified recombinant anti-hantavirus nucleocapsid nanobodies (anti-prNΔ85 VHH), while AuNPs were synthesized for bioconjugation. UV-visible spectrophotometry and transmission electron microscopy (TEM) analysis were employed to characterize AuNPs. RESULTS The bioconjugation stability parameters (VHH-AuNPs), analyzed by spectrophotometry, showed that the ideal pH value and VHH concentration were obtained at 7.4 and 50 μg/mL, respectively, after addition of 1 M NaCl, which induces AuNP aggregation. TEM performed before and after bioconjugation showed uniform, homogeneous, well-dispersed, and spherical AuNPs with an average diameter of ~ 14 ± 0.57 nm. Furthermore, high-resolution images revealed a thin white halo on the surface of the AuNPs, indicating the coating of the AuNPs with protein. A biosensor simulation test (dot blot-like [DB-like]) was performed in stationary phase to verify the binding and detection limits of the recombinant nucleocapsid protein from the Araucária hantavirus strain (prN∆85). DISCUSSION Using AuNPs/VHH bioconjugates, a specific interaction was detected between 5 and 10 min of reaction in a dose-dependent manner. It was observed that this test was sensitive enough to detect prNΔ85 at concentrations up to 25 ng/μL. Considering that nanostructured biological systems such as antibodies conjugated with AuNPs are useful tools for the development of chemical and biological sensors, the stability of the bioconjugate indicates proficiency in detecting antigens. The experimental results obtained will be used in a future immunospot assay or lateral flow immunochromatography analysis for hantavirus detection.
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Affiliation(s)
- Erika A Bastos-Soares
- Fundação Oswaldo Cruz, FIOCRUZ, Fiocruz Rondônia, Porto Velho, RO, Brazil
- Programa de Pós-graduação em Biologia Experimental, PGBIOEXP, Universidade Federal de Rondônia, UNIR, Porto Velho, RO, Brazil
| | - Michelle Suelen da Silva Morais
- Fundação Oswaldo Cruz, FIOCRUZ, Fiocruz Rondônia, Porto Velho, RO, Brazil
- Programa de Pós-graduação em Biologia Experimental, PGBIOEXP, Universidade Federal de Rondônia, UNIR, Porto Velho, RO, Brazil
| | - Maribel Funes-Huacca
- Departamento de Química, Universidade Federal de Rondônia, UNIR, Porto Velho, RO, Brazil
| | - Rosa Maria O Sousa
- Fundação Oswaldo Cruz, FIOCRUZ, Fiocruz Rondônia, Porto Velho, RO, Brazil
| | | | - Sibele Andrade Roberto
- Fundação Oswaldo Cruz, FIOCRUZ, Fiocruz Rondônia, Porto Velho, RO, Brazil
- Programa de Pós-graduação em Biologia Experimental, PGBIOEXP, Universidade Federal de Rondônia, UNIR, Porto Velho, RO, Brazil
| | | | | | - Anna C M Marinho
- Fundação Oswaldo Cruz, FIOCRUZ, Fiocruz Ceará, Eusébio, CE, Brazil
| | - Andreimar M Soares
- Fundação Oswaldo Cruz, FIOCRUZ, Fiocruz Rondônia, Porto Velho, RO, Brazil
- Centro Universitário São Lucas, UniSL, Porto Velho, RO, Brazil
- Instituto Nacional de Ciência e Tecnologia em Epidemiologia da Amazônia Ocidental, INCT-EpiAmO, Porto Velho, RO, Brazil
- Programa de Pós-graduação em Biologia Experimental, PGBIOEXP, Universidade Federal de Rondônia, UNIR, Porto Velho, RO, Brazil
| | - Rodrigo G Stabeli
- Fundação Oswaldo Cruz, FIOCRUZ, Plataforma Bi-institucional de Medicina Translacional, Ribeirão Preto, SP, Brazil
| | - Soraya Dos Santos Pereira
- Fundação Oswaldo Cruz, FIOCRUZ, Fiocruz Rondônia, Porto Velho, RO, Brazil
- Programa de Pós-graduação em Biologia Experimental, PGBIOEXP, Universidade Federal de Rondônia, UNIR, Porto Velho, RO, Brazil
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Andreolla AP, Borges AA, Nagashima S, Vaz de Paula CB, de Noronha L, Zanchin NIT, Bordignon J, Duarte Dos Santos CN. Development of monoclonal antibodies against oropouche virus and its applicability to immunohistochemical diagnosis. Virol J 2024; 21:81. [PMID: 38589896 PMCID: PMC11000289 DOI: 10.1186/s12985-024-02323-z] [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: 11/03/2023] [Accepted: 02/21/2024] [Indexed: 04/10/2024] Open
Abstract
Orthobunyavirus oropouche ense virus (OROV), the causative agent of Oropouche fever, is widely dispersed in Brazil and South America, causing sporadic outbreaks. Due to the similarity of initial clinical symptoms caused by OROV with other arboviruses found in overlapping geographical areas, differential diagnosis is challenging. As for most neglected tropical diseases, there is a shortage of reagents for diagnosing and studying OROV pathogenesis. We therefore developed and characterized mouse monoclonal antibodies and, one of them recognizes the OROV nucleocapsid in indirect immunofluorescent (IFA) and immunohistochemistry (IHC) assays. Considering that it is the first monoclonal antibody produced for detecting OROV infections, we believe that it will be useful not only for diagnostic purposes but also for performing serological surveys and epidemiological surveillance on the dispersion and prevalence of OROV in Brazil and South America.
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Affiliation(s)
- Ana Paula Andreolla
- Laboratório de Virologia Molecular, Instituto Carlos Chagas, ICC/Fiocruz PR, Cidade Industrial de Curitiba, Rua Prof. Algacyr Munhoz Mader 3775, Curitiba, Paraná, Brazil
| | - Alessandra Abel Borges
- Laboratório de Pesquisas em Virologia e Imunologia, Instituto de Ciências Biológicas e da Saúde (ICBS), Universidade Federal de Alagoas (UFAL), Av. Lourival Melo Mota, s/n, Tabuleiro do Martins, Maceió, Alagoas, Brazil
| | - Seigo Nagashima
- Laboratório de Patologia Experimental, Pontifica Universidade Católica do Paraná (PUC/PR), Rua Imaculada Conceição, 1155, Prado Velho, Curitiba, Paraná, Brazil
| | - Caroline Busatta Vaz de Paula
- Laboratório de Patologia Experimental, Pontifica Universidade Católica do Paraná (PUC/PR), Rua Imaculada Conceição, 1155, Prado Velho, Curitiba, Paraná, Brazil
| | - Lucia de Noronha
- Laboratório de Patologia Experimental, Pontifica Universidade Católica do Paraná (PUC/PR), Rua Imaculada Conceição, 1155, Prado Velho, Curitiba, Paraná, Brazil
| | - Nilson I T Zanchin
- Laboratório de Biologia Estrutural e Engenharia de Proteínas, Instituto Carlos Chagas, ICC/Fiocruz PR, Cidade Industrial de Curitiba, Rua Prof. Algacyr Munhoz Mader 3775, Curitiba, Paraná, Brazil
| | - Juliano Bordignon
- Laboratório de Virologia Molecular, Instituto Carlos Chagas, ICC/Fiocruz PR, Cidade Industrial de Curitiba, Rua Prof. Algacyr Munhoz Mader 3775, Curitiba, Paraná, Brazil.
| | - Claudia Nunes Duarte Dos Santos
- Laboratório de Virologia Molecular, Instituto Carlos Chagas, ICC/Fiocruz PR, Cidade Industrial de Curitiba, Rua Prof. Algacyr Munhoz Mader 3775, Curitiba, Paraná, Brazil.
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Goodfellow SM, Nofchissey RA, Ye C, Dunnum JL, Cook JA, Bradfute SB. Use of a Novel Detection Tool to Survey Orthohantaviruses in Wild-Caught Rodent Populations. Viruses 2022; 14:682. [PMID: 35458412 PMCID: PMC9024935 DOI: 10.3390/v14040682] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2022] [Revised: 03/20/2022] [Accepted: 03/23/2022] [Indexed: 02/07/2023] Open
Abstract
Orthohantaviruses are negative-stranded RNA viruses with trisegmented genomes that can cause severe disease in humans and are carried by several host reservoirs throughout the world. Old World orthohantaviruses are primarily located throughout Europe and Asia, causing hemorrhagic fever with renal syndrome, and New World orthohantaviruses are found in North, Central, and South America, causing hantavirus cardiopulmonary syndrome (HCPS). In the United States, Sin Nombre orthohantavirus (SNV) is the primary cause of HCPS with a fatality rate of ~36%. The primary SNV host reservoir is thought to be the North American deer mouse, Peromyscus maniculatus. However, it has been shown that other species of Peromyscus can carry different orthohantaviruses. Few studies have systemically surveyed which orthohantaviruses may exist in wild-caught rodents or monitored spillover events into additional rodent reservoirs. A method for the rapid detection of orthohantaviruses is needed to screen large collections of rodent samples. Here, we report a pan-orthohantavirus, two-step reverse-transcription quantitative real-time PCR (RT-qPCR) tool designed to detect both Old and New World pathogenic orthohantavirus sequences of the S segment of the genome and validated them using plasmids and authentic viruses. We then performed a screening of wild-caught rodents and identified orthohantaviruses in lung tissue, and we confirmed the findings by Sanger sequencing. Furthermore, we identified new rodent reservoirs that have not been previously reported as orthohantavirus carriers. This novel tool can be used for the efficient and rapid detection of various orthohantaviruses, while uncovering potential new orthohantaviruses and host reservoirs that may otherwise go undetected.
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Affiliation(s)
- Samuel M. Goodfellow
- Center for Global Health, Department of Internal Medicine, University of New Mexico Health Sciences Center, Albuquerque, NM 87131, USA; (S.M.G.); (R.A.N.); (C.Y.)
| | - Robert A. Nofchissey
- Center for Global Health, Department of Internal Medicine, University of New Mexico Health Sciences Center, Albuquerque, NM 87131, USA; (S.M.G.); (R.A.N.); (C.Y.)
| | - Chunyan Ye
- Center for Global Health, Department of Internal Medicine, University of New Mexico Health Sciences Center, Albuquerque, NM 87131, USA; (S.M.G.); (R.A.N.); (C.Y.)
| | - Jonathan L. Dunnum
- Museum of Southwestern Biology, Biology Department, University of New Mexico, Albuquerque, NM 87131, USA; (J.L.D.); (J.A.C.)
| | - Joseph A. Cook
- Museum of Southwestern Biology, Biology Department, University of New Mexico, Albuquerque, NM 87131, USA; (J.L.D.); (J.A.C.)
| | - Steven B. Bradfute
- Center for Global Health, Department of Internal Medicine, University of New Mexico Health Sciences Center, Albuquerque, NM 87131, USA; (S.M.G.); (R.A.N.); (C.Y.)
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The Serological Cross-Detection of Bat-Borne Hantaviruses: A Valid Strategy or Taking Chances? Viruses 2021; 13:v13071188. [PMID: 34206220 PMCID: PMC8309984 DOI: 10.3390/v13071188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 05/21/2021] [Accepted: 05/24/2021] [Indexed: 11/17/2022] Open
Abstract
Bats are hosts of a range of viruses, and their great diversity and unique characteristics that distinguish them from all other mammals have been related to the maintenance, evolution, and dissemination of these pathogens. Recently, very divergent hantaviruses have been discovered in distinct species of bats worldwide, but their association with human disease remains unclear. Considering the low success rates of detecting hantavirus RNA in bat tissues and that to date no hantaviruses have been isolated from bat samples, immunodiagnostic tools could be very helpful to understand pathogenesis, epidemiology, and geographic range of bat-borne hantaviruses. In this sense, we aimed to identify in silico immunogenic B-cell epitopes present on bat-borne hantaviruses nucleoprotein (NP) and verify if they are conserved among them and other selected members of Mammantavirinae, using a combination of (the three most used) different prediction algorithms, ELLIPRO, Discotope 2.0, and PEPITO server. To support our data, we in silico modeled 3D structures of NPs from representative members of bat-borne hantaviruses, using comparative and ab initio methods due to the absence of crystallographic structures of studied proteins or similar models in the Protein Data Bank. Our analysis demonstrated the antigenic complexity of the bat-borne hantaviruses group, showing a low sequence conservation of epitopes among members of its own group and a minor conservation degree in comparison to Orthohantavirus, with a recognized importance to public health. Our data suggest that the use of recombinant rodent-borne hantavirus NPs to cross-detect antibodies against bat- or shrew-borne viruses could underestimate the real impact of this virus in nature.
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Nunes BTD, de Mendonça MHR, Simith DDB, Moraes AF, Cardoso CC, Prazeres ITE, de Aquino AA, Santos ADCM, Queiroz ALN, Rodrigues DSG, Andriolo RB, Travassos da Rosa ES, Martins LC, Vasconcelos PFDC, Medeiros DBDA. Development of RT-qPCR and semi-nested RT-PCR assays for molecular diagnosis of hantavirus pulmonary syndrome. PLoS Negl Trop Dis 2019; 13:e0007884. [PMID: 31877142 PMCID: PMC6932758 DOI: 10.1371/journal.pntd.0007884] [Citation(s) in RCA: 20] [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: 11/08/2018] [Accepted: 10/26/2019] [Indexed: 12/02/2022] Open
Abstract
Hantavirus Pulmonary Syndrome is an, often fatal, emerging zoonotic disease in the Americas caused by hantaviruses (family: Hantaviridae). In Brazil, hantavirus routine diagnosis is based on serology (IgM-ELISA) while RT-PCR is often used to confirm acute infection. A Semi-nested RT-PCR and an internally controlled RT-qPCR assays were developed for detection and quantification of four hantaviruses strains circulating in the Brazilian Amazon: Anajatuba (ANAJV) and Castelo dos Sonhos (CASV) strains of Andes virus (ANDV) species; and Rio Mamoré (RIOMV) and Laguna Negra (LNV) strains of LNV species. A consensus region in the N gene of these hantaviruses was used to design the primer sets and a hydrolysis probe. In vitro transcribed RNA was diluted in standards with known concentration. MS2 bacteriophage RNA was detected together with hantavirus RNA as an exogenous control in a duplex reaction. RT-qPCR efficiency was around 100% and the limit of detection was 0.9 copies/μL of RNA for RT-qPCR and 10 copies/μL of RNA for Semi-nested RT-PCR. There was no amplification of either negative samples or samples positive to other pathogens. To assess the protocol for clinical sensitivity, specificity and general accuracy values, both assays were used to test two groups of samples: one comprising patients with disease (n = 50) and other containing samples from healthy individuals (n = 50), according to IgM-ELISA results. A third group of samples (n = 27) infected with other pathogens were tested for specificity analysis. RT-qPCR was more sensitive than semi-nested RT-PCR, being able to detect three samples undetected by conventional RT-PCR. RT-qPCR clinical sensitivity, specificity and general accuracy values were 92.5%, 100% and 97.63%, respectively. Thus, the assays developed in this study were able to detect the four Brazilian Amazon hantaviruses with good specificity and sensitivity, and may become powerful tools in diagnostic, surveillance and research applications of these and possibly other hantaviruses. Hantavirus Pulmonary Syndrome (HPS) is a serious and often fatal disease caused by viruses known as hantaviruses. These viruses are harbored by wild rodents and people can become infected through contact with infected-rodents droppings, urine or saliva. After an incubation time of 1–8 weeks, patients usually present flu-like symptoms such as fever, fatigue and muscle aches, although some patients may also present headaches, dizziness, chills, nausea, vomiting, diarrhea, and abdominal pain. It is only 4–10 days after initial symptoms, however, that the severe stage of disease takes place. Symptoms include coughing, shortness of breath and eventually the lungs fill with fluid which can lead to shock and death. As such, HPS should be diagnosed quickly as any delay may have great impact on patient recovery. However, given the unspecific nature of early symptoms, clinical diagnosis of HPS is difficult and laboratory assays are needed to confirm hantavirus infection as soon as possible, helping physicians to choose the most adequate treatment. In this study, we developed new laboratory assays that can help detect the virus in infected patients in early stages of disease. In addition, we showed these assays have a good performance in discriminating HPS from other similar diseases by testing not only several samples collected from both HPS patients and healthy individuals but also samples infected with other pathogens. Our results show that these assays may become important tools for rapid, sensitive and specific diagnosis of HPS.
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Affiliation(s)
- Bruno Tardelli Diniz Nunes
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Ananindeua, Brazil
- Post-Graduation Program in Virology, Evandro Chagas Institute, Ananindeua, Brazil
| | | | - Darlene de Brito Simith
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Ananindeua, Brazil
- Post-Graduation Program in Virology, Evandro Chagas Institute, Ananindeua, Brazil
| | - Adriana Freitas Moraes
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Ananindeua, Brazil
| | - Carla Conceição Cardoso
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Ananindeua, Brazil
| | | | - Ana Alice de Aquino
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Ananindeua, Brazil
| | | | | | | | | | | | - Livia Carício Martins
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Ananindeua, Brazil
| | - Pedro Fernando da Costa Vasconcelos
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Ananindeua, Brazil
- Post-Graduation Program in Virology, Evandro Chagas Institute, Ananindeua, Brazil
| | - Daniele Barbosa de Almeida Medeiros
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Ananindeua, Brazil
- Post-Graduation Program in Virology, Evandro Chagas Institute, Ananindeua, Brazil
- * E-mail:
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Terças-Trettel ACP, Melo AVGD, Bonilha SMF, Moraes JMD, Oliveira RCD, Guterres A, Fernandes J, Atanaka M, Espinosa MM, Sampaio L, Ueda SK, Lemos ERSD. Hantavirus pulmonary syndrome in children: case report and case series from an endemic area of Brazil. Rev Inst Med Trop Sao Paulo 2019; 61:e65. [PMID: 31859842 PMCID: PMC6907412 DOI: 10.1590/s1678-9946201961065] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Accepted: 07/04/2019] [Indexed: 01/15/2023] Open
Abstract
Hantavirus Cardiopulmonary Syndrome (HCPS) is an important emergent zoonosis associated with wild rodents in Brazil, where this viral infection in children is generally rare. We present HCPS in a child from the Pantanal Biome and a review of all reported pediatric cases in Mato Grosso State, an endemic area for HCPS in Brazil. The investigation used the Information System for Notifiable Diseases database (SINAN). A 12-year-old boy was hospitalized with fever and respiratory failure and hantavirus IgM and IgG antibodies were detected by ELISA in serum samples. During the period of 1999 to 2016, 32 HCPS pediatric cases confirmed by serology were reported to SINAN with a mortality rate of 34.4%. The possibility of hantavirus infection in children with acute febrile illness associated with respiratory failure should be considered mainly in recognized endemic areas as Mato Grosso State, contradicting a hypothesis that children are more protected from lung involvement.
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Affiliation(s)
- Ana Cláudia Pereira Terças-Trettel
- Universidade do Estado de Mato Grosso , Tangará da Serra , Mato Grosso , Brazil.,Universidade Federal de Mato Grosso , Instituto de Saúde Coletiva , Cuiabá , Mato Grosso , Brazil
| | | | | | | | - Renata Carvalho de Oliveira
- Instituto Oswaldo Cruz , Laboratório de Hantaviroses e Ricktesioses , Rio de Janeiro , Rio de Janeiro , Brazil
| | - Alexandro Guterres
- Instituto Oswaldo Cruz , Laboratório de Hantaviroses e Ricktesioses , Rio de Janeiro , Rio de Janeiro , Brazil
| | - Jorlan Fernandes
- Instituto Oswaldo Cruz , Laboratório de Hantaviroses e Ricktesioses , Rio de Janeiro , Rio de Janeiro , Brazil
| | - Marina Atanaka
- Universidade Federal de Mato Grosso , Instituto de Saúde Coletiva , Cuiabá , Mato Grosso , Brazil
| | | | - Luciana Sampaio
- Hospital Regional de Cáceres Dr. Antônio Fontes , Cáceres , Mato Grosso , Brazil
| | - Sumako Kinoshieta Ueda
- Secretaria de Estado de Saúde de Mato Grosso , Laboratório Público Central , Cuiabá , Mato Grosso , Brazil In Memorian.,Secretaria de Estado de Saúde de Mato Grosso , Laboratório Público Central , Cuiabá , Mato Grosso , Brazil In Memorian
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Label-free electrochemical immunosensor for quick detection of anti-hantavirus antibody. J Electroanal Chem (Lausanne) 2019. [DOI: 10.1016/j.jelechem.2019.04.066] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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Terças-Trettel ACP, Oliveira ECD, Fontes CJF, Melo AVGD, Oliveira RCD, Guterres A, Fernandes J, Silva RGD, Atanaka M, Espinosa MM, Lemos ERSD. Malaria and Hantavirus Pulmonary Syndrome in Gold Mining in the Amazon Region, Brazil. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:ijerph16101852. [PMID: 31130600 PMCID: PMC6571568 DOI: 10.3390/ijerph16101852] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Revised: 04/11/2019] [Accepted: 04/18/2019] [Indexed: 02/03/2023]
Abstract
People living in mining regions are exposed to numerous biological agents by several specific types of transmission mechanisms. This study is designed to describe fatal hantavirus pulmonary syndrome (HPS) cases confirmed by serology and molecular analysis, where a seroprevalence survey was conducted in the gold mining regions of the state of Mato Grosso, in the official Amazon region, Brazil. Two fatal cases of HPS were confirmed in a mining area in the Legal Amazon, where malaria is one of the most important public health problems. A molecular analysis detected the presence of the genome of the Castelo dos Sonhos virus. Out of the 112 blood samples analyzed, five were positive for Plasmodium infection (four P. falciparum and one P. vivax), and four were seropositive for hantavirus, showing a seroprevalence of 3.57%. One of the four miners who was seroreactive for hantavirus concomitantly had P. falciparum infection, which was confirmed by thick blood smear. This manuscript highlights the importance of considering hantavirus pulmonary syndrome as a diagnostic possibility in febrile infection associated with pulmonary manifestations in mining areas where malaria cases are often identified.
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Affiliation(s)
- Ana Cláudia Pereira Terças-Trettel
- Nursing Department, Mato Grosso State University Campus Tangará da Serra, Tangara da Serra (MT) 78300-000, Brazil.
- Department, Mato Grosso Federal University, Cuiaba (MT) 78000-000, Brazil.
| | | | | | | | - Renata Carvalho de Oliveira
- Hantaviruses and Rickettsiosis Laboratory, Oswaldo Cruz-FIOCRUZ Institute, Rio de Janeiro (RJ) 21000-000, Brazil.
| | - Alexandro Guterres
- Hantaviruses and Rickettsiosis Laboratory, Oswaldo Cruz-FIOCRUZ Institute, Rio de Janeiro (RJ) 21000-000, Brazil.
| | - Jorlan Fernandes
- Hantaviruses and Rickettsiosis Laboratory, Oswaldo Cruz-FIOCRUZ Institute, Rio de Janeiro (RJ) 21000-000, Brazil.
| | - Raphael Gomes da Silva
- Hantaviruses and Rickettsiosis Laboratory, Oswaldo Cruz-FIOCRUZ Institute, Rio de Janeiro (RJ) 21000-000, Brazil.
| | - Marina Atanaka
- Department, Mato Grosso Federal University, Cuiaba (MT) 78000-000, Brazil.
| | | | - Elba Regina Sampaio de Lemos
- Hantaviruses and Rickettsiosis Laboratory, Oswaldo Cruz-FIOCRUZ Institute, Rio de Janeiro (RJ) 21000-000, Brazil.
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Montoya-Ruiz C, Díaz FJ, W MJ, Xiaofeng Z, Levis S, Zapata JC, Muskus CE, Álvarez CM, Rodas JD. Development of a serosurveillance assay for detection of Necoclí virus exposure. Arch Virol 2018; 163:3291-3301. [PMID: 30191374 DOI: 10.1007/s00705-018-4015-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2018] [Accepted: 08/27/2018] [Indexed: 10/28/2022]
Abstract
Hantavirus cardiopulmonary syndrome (HPS) has gained importance in Latin America as an emerging disease, with reports of about 4000 HPS cases; however, this is probably an underestimate because of limited surveillance programs and diagnostic tools to confirm HPS. In order to address this issue and develop better serosurveillance capability, we evaluated three recombinant peptides from the Necoclí virus (NECV) nucleocapsid in antibody-capture ELISA. We cloned and expressed antigens representing the whole NECV nucleocapsid protein (NECV-rN), the immunodominant domain (NECV-rN100), and a serospecific domain (NECV-rN428), and then we compared these antigens in ELISA to detect IgG antibodies to NECV in human sera. We evaluated human sera collected during two epidemiological studies from the area where NECV was discovered. The first group included 609 sera from healthy individuals, and the second one included 89 samples from patients with undifferentiated febrile illness. In these two groups, hantavirus infection had previously been determined by the presence of IgG to Maciel virus (MCLV), a hantavirus closely related to NECV. The number of IgG-positive sera was higher using the Necoclí ELISA with the rN100 protein, which detected antibodies in a higher percentage of healthy individuals, 129/609 (21.2%), as well as in febrile patients, 11/89 (12.3%). In contrast, using MCLV ELISA, 8 of 609 (1.3%) and 4 of 89 (4.5%) samples from healthy and febrile patients, respectively, were seropositive. The agreement between the NECV and MCLV ELISA assays was ≥ 82.3%; however, the kappa indices were weak but statistically significant for rN (0.251 CI; 0.138-0.365) and rN100rN (0.153 CI; 0.084-0.223). The weak kappa indices were attributed to decreased MCLV ELISA assay sensitivity. These results suggest that NECV rN and rN100 have increased specificity and could be further validated for improved diagnosis of hantavirus infections.
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Affiliation(s)
- Carolina Montoya-Ruiz
- Grupo Centauro, Universidad de Antioquia U-de-A, Sede de Investigación Universitaria, SIU, Carrera 53 No. 61-30 Lab. 233, Medellín, Antioquia, Colombia.
| | - Francisco J Díaz
- Grupo Inmunovirología, Universidad de Antioquia U-de-A, Medellín, Antioquia, Colombia
| | - McBride Jere W
- Department of Pathology, University of Texas Medical Branch, Galveston, Texas, USA
| | - Zhang Xiaofeng
- Department of Pathology, University of Texas Medical Branch, Galveston, Texas, USA
| | - Silvana Levis
- Instituto Nacional de Enfermedades Virales Humanas "Dr. Julio I. Maiztegui" (INEVH), Pergamino, Argentina
| | - Juan Carlos Zapata
- Institute of Human Virology, University of Maryland School of Medicine, 725 W. Lombard Street, Baltimore, MD, USA
| | - Carlos E Muskus
- Programa de Estudio y Control de Enfermedades Tropicales-PECET, Universidad de Antioquia U-de-A, Medellín, Antioquia, Colombia
| | - Cristian M Álvarez
- Grupo de Inmunología Celular e Inmunogenética (GICIG), Universidad de Antioquia U-de-A, Medellín, Antioquia, Colombia
| | - Juan David Rodas
- Grupo Centauro, Universidad de Antioquia U-de-A, Sede de Investigación Universitaria, SIU, Carrera 53 No. 61-30 Lab. 233, Medellín, Antioquia, Colombia
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10
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de Oliveira RC, Guterres A, Teixeira BR, Fernandes J, Júnior JMP, de Jesus Oliveira Júnior R, Pereira LS, Júnior JB, Meneguete PS, Dias CMG, Bonvicino CR, D'Andrea PS, de Lemos ERS. A Fatal Hantavirus Pulmonary Syndrome Misdiagnosed as Dengue: An Investigation into the First Reported Case in Rio de Janeiro State, Brazil. Am J Trop Med Hyg 2017; 97:125-129. [PMID: 28719302 PMCID: PMC5508898 DOI: 10.4269/ajtmh.16-0845] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2016] [Accepted: 12/26/2016] [Indexed: 12/22/2022] Open
Abstract
We report the results of an investigation into a fatal case of hantavirus pulmonary syndrome (HPS) in Rio de Janeiro State, Brazil, where the disease had not been reported previous to 2015. Following the notification of an HPS case, serum samples were collected from the household members and work contacts of the HPS patient and tested for antibody to hantaviruses. Seroprevalence of 22% (10/45) was indicated for hantavirus out of 45 human samples tested. Blood and tissue samples were collected from 72 rodents during fieldwork to evaluate the prevalence of hantavirus infection, by using enzyme-linked immunosorbent assay IgG, and to characterize the rodent hantavirus reservoir(s), by reverse transcription polymerase chain reaction and sequencing. Antibody prevalence was 6.9%. The circulation of a single genotype, the Juquitiba hantavirus, carried by two rodent species, black-footed pigmy rice rat (Oligoryzomys nigripes) and cursor grass mouse (Akodon cursor), was shown by analysis of the nucleotide sequences of the S segment. Juquitiba hantavirus circulates in rodents of various species, but mainly in the black-footed pigmy rice rat. HPS is a newly recognized clinical entity in Rio de Janeiro State and should be considered in patients with febrile illness and acute respiratory distress.
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Affiliation(s)
- Renata Carvalho de Oliveira
- Laboratório de Hantaviroses e Rickettsioses, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz (FIOCRUZ), Rio de Janeiro, Rio de Janeiro, Brasil
| | - Alexandro Guterres
- Laboratório de Hantaviroses e Rickettsioses, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz (FIOCRUZ), Rio de Janeiro, Rio de Janeiro, Brasil
| | - Bernardo Rodrigues Teixeira
- Laboratório de Biologia e Parasitologia de Mamíferos Silvestres Reservatórios, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz (FIOCRUZ), Rio de Janeiro, Rio de Janeiro, Brasil
| | - Jorlan Fernandes
- Laboratório de Hantaviroses e Rickettsioses, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz (FIOCRUZ), Rio de Janeiro, Rio de Janeiro, Brasil
| | - João Marcos Penna Júnior
- Secretaria Municipal de Saúde, Setor de Vigilância Epidemiológica Rio Claro, Rio de Janeiro, Brasil
| | | | - Liana Strecht Pereira
- Laboratório de Hantaviroses e Rickettsioses, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz (FIOCRUZ), Rio de Janeiro, Rio de Janeiro, Brasil
| | - João Bosco Júnior
- Secretaria Municipal de Saúde, Setor de Vigilância Epidemiológica Rio Claro, Rio de Janeiro, Brasil
| | - Patrícia Soares Meneguete
- Secretaria de Saúde do Estado do Rio de Janeiro, Setor de Vigilância Epidemiológica, Rio de Janeiro, Rio de Janeiro, Brasil
| | - Cristina Maria Giordano Dias
- Secretaria de Saúde do Estado do Rio de Janeiro, Setor de Vigilância Epidemiológica, Rio de Janeiro, Rio de Janeiro, Brasil
| | - Cibele Rodrigues Bonvicino
- Laboratório de Biologia e Parasitologia de Mamíferos Silvestres Reservatórios, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz (FIOCRUZ), Rio de Janeiro, Rio de Janeiro, Brasil
| | - Paulo Sérgio D'Andrea
- Laboratório de Biologia e Parasitologia de Mamíferos Silvestres Reservatórios, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz (FIOCRUZ), Rio de Janeiro, Rio de Janeiro, Brasil
| | - Elba Regina Sampaio de Lemos
- Laboratório de Hantaviroses e Rickettsioses, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz (FIOCRUZ), Rio de Janeiro, Rio de Janeiro, Brasil
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11
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Development and validation of a point-of-care test for detecting hantavirus antibodies in human and rodent samples. Diagn Microbiol Infect Dis 2016; 85:323-327. [DOI: 10.1016/j.diagmicrobio.2016.04.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2016] [Revised: 04/11/2016] [Accepted: 04/14/2016] [Indexed: 01/21/2023]
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12
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Hantavirus pulmonary syndrome and rodent reservoirs in the savanna-like biome of Brazil's southeastern region. Epidemiol Infect 2015; 144:1107-16. [PMID: 26541807 DOI: 10.1017/s095026881500237x] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
This paper describes the diversity of rodent fauna in an area endemic for hantavirus cardiopulmonary syndrome (HCPS) in Brazil, the population dynamics and the relationship of rodents with hantavirus in the Cerrado (savanna-like) biome. Additionally, an analysis is made of the partial S segment sequences of the hantaviruses obtained from serologically confirmed human HCPS cases and from rodent specimens. Rodents were collected during four campaigns. Human serum samples were collected from suspected cases of HCPS at hospitals in the state of Minas Gerais. The samples antibody-reactive by ELISA were processed by RT-PCR. The PCR product was amplified and sequenced. Hantavirus was detected only in Necromys lasiurus, the wild rodent species most prevalent in the Cerrado biome (min-max: 50-83·7%). All the six human serum samples were hantavirus seropositive and five showed amplified PCR products. The analysis of the nucleotide sequences showed the circulation of a single genotype, the Araraquara hantavirus. The environmental changes that have occurred in the Cerrado biome in recent decades have favoured N. lasiurus in interspecific competition of habitats, thus increasing the risk of contact between humans and rodent species infected with hantavirus. Our data corroborate the definition of N. lasiurus as the main hantavirus reservoir in the Cerrado biome.
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13
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de Oliveira RC, Cordeiro-Santos M, Guterres A, Fernandes J, de Melo AX, João GAP, Novais MAM, Travassos da Rosa ES, Vasconcelos PFDC, Vilges de Oliveira S, de Albuquerque BC, de Lemos ERS. Rio Mamoré virus and hantavirus pulmonary syndrome, Brazil. Emerg Infect Dis 2015; 20:1568-70. [PMID: 25152089 PMCID: PMC4178416 DOI: 10.3201/eid2009.131472] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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14
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de Araujo J, Duré AIL, Negrão R, Ometto T, Thomazelli LM, Durigon EL. Co-circulation in a single biome of the Juquitiba and Araraquara hantavirus detected in human sera in a sub-tropical region of Brazil. J Med Virol 2015; 87:725-32. [PMID: 25678450 DOI: 10.1002/jmv.24118] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/28/2014] [Indexed: 11/08/2022]
Abstract
Hantaviruses is an emerging infectious disease. Although HCPS has been reported in several regions of Brazil, more cases of HCPS have recently been reported in Minas Gerais than in any other state. In 2009, we analyzed 27 samples presenting antibodies against hantaviruses. These samples originated from 688 symptomatic patients, as determined based on the Hemorrhagic Fever Protocol. A subsequent SYBR Green-based real-time RT-PCR demonstrated the presence of the virus in 22 of the samples. Among the RT-PCR-positive samples, 17 were analyzed using DNA sequencing; these sequences were compared with others deposited in GenBank and showed similarity with the Araraquara and Juquitiba virus clusters. This work describe the detection of Juquitiba virus, including three fatal cases, in Minas Gerais state, furthermore, showed that it is feasible to characterize the circulating strains using a small fragment of S segment. Finally, the results suggest the co-circulation of Araraquara and Juquitiba virus in a single biome in Minas Gerais state.
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Affiliation(s)
- Jansen de Araujo
- BSL3+ Clinical and Molecular Virology Laboratory, Department of Microbiology, Institute of Biomedical Science, University of São Paulo (USP), São Paulo, Brazil
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15
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Pereira SS, Moreira-Dill LS, Morais MSS, Prado NDR, Barros ML, Koishi AC, Mazarrotto GACA, Gonçalves GM, Zuliani JP, Calderon LA, Soares AM, Pereira da Silva LH, Duarte dos Santos CN, Fernandes CFC, Stabeli RG. Novel camelid antibody fragments targeting recombinant nucleoprotein of Araucaria hantavirus: a prototype for an early diagnosis of Hantavirus Pulmonary Syndrome. PLoS One 2014; 9:e108067. [PMID: 25243411 PMCID: PMC4171512 DOI: 10.1371/journal.pone.0108067] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2013] [Accepted: 08/25/2014] [Indexed: 01/11/2023] Open
Abstract
In addition to conventional antibodies, camelids produce immunoglobulins G composed exclusively of heavy chains in which the antigen binding site is formed only by single domains called VHH. Their particular characteristics make VHHs interesting tools for drug-delivery, passive immunotherapy and high-throughput diagnosis. Hantaviruses are rodent-borne viruses of the Bunyaviridae family. Two clinical forms of the infection are known. Hemorrhagic Fever with Renal Syndrome (HFRS) is present in the Old World, while Hantavirus Pulmonary Syndrome (HPS) is found on the American continent. There is no specific treatment for HPS and its diagnosis is carried out by molecular or serological techniques, using mainly monoclonal antibodies or hantavirus nucleoprotein (N) to detect IgM and IgG in patient serum. This study proposes the use of camelid VHHs to develop alternative methods for diagnosing and confirming HPS. Phage display technology was employed to obtain VHHs. After immunizing one Lama glama against the recombinant N protein (prNΔ85) of a Brazilian hantavirus strain, VHH regions were isolated to construct an immune library. VHHs were displayed fused to the M13KO7 phage coat protein III and the selection steps were performed on immobilized prNΔ85. After selection, eighty clones recognized specifically the N protein. These were sequenced, grouped based mainly on the CDRs, and five clones were analyzed by western blot (WB), surface plasmon resonance (SPR) device, and ELISA. Besides the ability to recognize prNΔ85 by WB, all selected clones showed affinity constants in the nanomolar range. Additionaly, the clone KC329705 is able to detect prNΔ85 in solution, as well as the native viral antigen. Findings support the hypothesis that selected VHHs could be a powerful tool in the development of rapid and accurate HPS diagnostic assays, which are essential to provide supportive care to patients and reduce the high mortality rate associated with hantavirus infections.
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Affiliation(s)
| | | | | | | | - Marcos L. Barros
- Fundação Oswaldo Cruz, Fiocruz Rondônia, Porto Velho, RO, Brazil
| | | | | | | | - Juliana P. Zuliani
- Fundação Oswaldo Cruz, Fiocruz Rondônia, Porto Velho, RO, Brazil
- Departamento de Medicina, Universidade Federal de Rondônia, UNIR, Porto Velho, RO, Brazil
| | - Leonardo A. Calderon
- Fundação Oswaldo Cruz, Fiocruz Rondônia, Porto Velho, RO, Brazil
- Departamento de Medicina, Universidade Federal de Rondônia, UNIR, Porto Velho, RO, Brazil
| | | | | | | | - Carla F. C. Fernandes
- Fundação Oswaldo Cruz, Fiocruz Rondônia, Porto Velho, RO, Brazil
- Centro de Pesquisa em Medicina Tropical, CEPEM, Porto Velho, RO, Brazil
- * E-mail: (RGS); (CFCF)
| | - Rodrigo G. Stabeli
- Fundação Oswaldo Cruz, Fiocruz Rondônia, Porto Velho, RO, Brazil
- Departamento de Medicina, Universidade Federal de Rondônia, UNIR, Porto Velho, RO, Brazil
- * E-mail: (RGS); (CFCF)
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16
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Raboni SM, Delfraro A, de Borba L, Teixeira BR, Stella V, de Araujo MR, Carstensen S, Rubio G, Maron A, Lemos ERS, D'Andrea PS, Duarte dos Santos CN. Hantavirus infection prevalence in wild rodents and human anti-hantavirus serological profiles from different geographic areas of South Brazil. Am J Trop Med Hyg 2012; 87:371-8. [PMID: 22855773 DOI: 10.4269/ajtmh.2012.11-0762] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
Paraná state presents the fourth highest number of accumulated cases of hantavirus pulmonary syndrome in Brazil. To map the risk areas for hantavirus transmission we carried out a study based on rodent trapping and determined the anti-hantavirus seroprevalence in these animals and in the inhabitants of these localities. Overall seroprevalence in rodents and humans were 2.5% and 2.4%, respectively. Eighty-two percent of the seropositive rodents were genetically analyzed. Phylogenetic analyses revealed that hantaviruses from rodent samples cluster with Araucária (Juquitiba-like) or Jaborá hantavirus genotypes. The Jaborá strain was identified in Akodon serrensis and Akodon montensis, whereas the Araucária strain was detected in Oligoryzomys nigripes, Oxymycterus judex, A. montensis, and Akodon paranaensis, with the latter species being identified for the first time as a natural host. These findings expose the complex relationships between virus and reservoirs in Brazil, which could have an impact on hantavirus transmission dynamics in nature and human epidemiology.
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17
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Silva ADD, Evangelista MDSN. Syndromic surveillance: etiologic study of acute febrile illness in dengue suspicious cases with negative serology. Brazil, Federal District, 2008. Rev Inst Med Trop Sao Paulo 2011; 52:237-42. [PMID: 21049226 DOI: 10.1590/s0036-46652010000500003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2010] [Accepted: 08/27/2010] [Indexed: 11/21/2022] Open
Abstract
With the aim of identifying the etiology of acute febrile illness in patients suspected of having dengue, yet with non reagent serum, a descriptive study was conducted with 144 people using secondary serum samples collected during convalescence. The study was conducted between January and May of 2008. All the exams were re-tested for dengue, which was confirmed in 11.8% (n = 17); the samples that remained negative for dengue (n = 127) were tested for rubella, with 3.9% (n = 5) positive results. Among those non reactive for rubella (n = 122), tests were made for leptospirosis and hantavirus. Positive tests for leptospirosis were 13.9% (n = 17) and none for hantavirus. Non reactive results (70.8%) were considered as Indefinite Febrile Illness (IFI). Low schooling was statistically associated with dengue, rubella and leptospirosis (p = 0.009), dyspnea was statistically associated with dengue and leptospirosis (p = 0.012), and exanthem/petechia with dengue and rubella (p = 0.001). Among those with leptospirosis, activities in empty or vacant lots showed statistical association with the disease (p = 0.013). Syndromic surveillance was shown to be an important tool in the etiologic identification of IFI in the Federal District of Brazil.
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Affiliation(s)
- Ailton Domicio da Silva
- University of Brasilia Health Sciences College, Directorate of Epidemiological Surveillance for the Federal District Health Department.
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18
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Mazzarotto GA, Raboni SM, Stella V, Carstensen S, de Noronha L, Levis S, Zanluca C, Zanetti CR, Bordignon J, Duarte dos Santos CN. Production and characterization of monoclonal antibodies against the recombinant nucleoprotein of Araucaria hantavirus. J Virol Methods 2009; 162:96-100. [DOI: 10.1016/j.jviromet.2009.07.022] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2009] [Revised: 07/22/2009] [Accepted: 07/27/2009] [Indexed: 10/20/2022]
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19
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Raboni SM, de Borba L, Hoffmann FG, de Noronha L, Azevedo MLV, Carstensen S, Mazzarotto GA, Bordignon J, Duarte dos Santos CN. Evidence of circulation of Laguna Negra-like hantavirus in the Central West of Brazil: Case report. J Clin Virol 2009; 45:153-6. [DOI: 10.1016/j.jcv.2009.03.015] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2009] [Accepted: 03/23/2009] [Indexed: 10/20/2022]
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20
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Raboni SM, Hoffmann FG, Oliveira RC, Teixeira BR, Bonvicino CR, Stella V, Carstensen S, Bordignon J, D'Andrea PS, Lemos ERS, Duarte Dos Santos CN. Phylogenetic characterization of hantaviruses from wild rodents and hantavirus pulmonary syndrome cases in the state of Parana (southern Brazil). J Gen Virol 2009; 90:2166-71. [PMID: 19439554 DOI: 10.1099/vir.0.011585-0] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Over 1,100 cases of hantavirus pulmonary syndrome (HPS) have occurred in Brazil since 1993, but little is known about Brazilian hantaviruses, and many of their rodent hosts remain unknown. The Araucaria hantavirus (ARAUV) was described recently from HPS patients from Paraná, in southern Brazil, but its host could not be identified. In this study, rodents were captured from regions with high HPS prevalence to address this issue. ARAUV RNA was detected in three distantly related rodent species: Oligoryzomys nigripes, Oxymycterus judex and Akodon montensis. Furthermore, a specimen of A. montensis was infected with a Jaborá-like virus, implying that A. montensis can be infected by at least two different hantaviruses. The presence of the same hantavirus strain in three different rodent species and the co-circulation of two different strains in the same rodent species highlight the potential for genomic reassortment, which could have an impact on hantavirus transmission dynamics in nature and on human epidemiology.
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