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Aquino VH, Fumagalli MJ, Silva A, de Moura Negrini BV, Rojas A, Guillen Y, Bernal C, Figueiredo LTM. Linear epitope mapping in the E and NS1 proteins of dengue and Zika viruses: Prospection of peptides for vaccines and diagnostics. PLoS One 2023; 18:e0292451. [PMID: 37788262 PMCID: PMC10547212 DOI: 10.1371/journal.pone.0292451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Accepted: 09/20/2023] [Indexed: 10/05/2023] Open
Abstract
The arrival of the Zika virus (ZIKV) in dengue virus (DENV)-endemic areas has posed challenges for both differential diagnosis and vaccine development. Peptides have shown promise in addressing these issues. The aim of this study was to identify the linear epitope profile recognized by serum samples from dengue and Zika patients in the E and NS1 proteins of DENV and ZIKV. This cross-sectional study included individuals of all ages with laboratory-confirmed DENV and ZIKV infections, who were selected through convenience sampling. The serum samples from dengue and Zika patients detected epitopes evenly distributed across the viral proteins in a peptide microarray platform. However, several epitopes were located within "epitope hotspots", characterized by clusters of peptides recognized in more than 30% of the sub-arrays analyzed using individual or pooled serum samples. The serum samples from dengue and Zika patients showed a high level of cross-reactivity with peptides in the DENV and ZIKV proteins. Analysis using an additional peptide microarray platform, which contained peptides selected based on the results of the initial screening, revealed that two DENV and one ZIKV peptide, highly specific to their related viruses, were located within the epitope hotspots; however, they presented low detection rates (32.5, 35.0, and 28.6%, respectively). In addition, two DENV peptides detected at similarly high rates by both dengue and Zika patients were also found within the epitope hotspots. These hotspots contain several immunodominant epitopes that are recognized by a larger number of individuals when compared to 15-amino acid (aa) sequence peptides. Thus, epitope hotspots may have greater potential to serve as antigens in diagnostic tests and vaccine development than peptides composed of only 15 amino acids.
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Affiliation(s)
- Victor Hugo Aquino
- Immunology Department, Research Institute for Health Sciences, National University of Asuncion, San Lorenzo, Central, Paraguay
- Department of Clinical Analyses, Toxicology and Food Sciences, School of Pharmaceutical Sciences, University of Sao Paulo, Ribeirao Preto, Sao Paulo, Brazil
| | - Marcilio J. Fumagalli
- Virology Research Center, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, Sao Paulo, Brazil
| | - Angélica Silva
- Virology Research Center, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, Sao Paulo, Brazil
| | | | - Alejandra Rojas
- Production Department, Research Institute for Health Sciences, National University of Asuncion, San Lorenzo, Central, Paraguay
| | - Yvalena Guillen
- Production Department, Research Institute for Health Sciences, National University of Asuncion, San Lorenzo, Central, Paraguay
| | - Cynthia Bernal
- Production Department, Research Institute for Health Sciences, National University of Asuncion, San Lorenzo, Central, Paraguay
| | - Luiz Tadeu Moraes Figueiredo
- Virology Research Center, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, Sao Paulo, Brazil
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de Figueiredo MLG, Williams EP, Jonsson CB, Khan MJ, Nunes MRT, de Lima CPS, Figueiredo LTM, Costa MRF, Mourão MPG, Lacerda MVG, Aquino VH. Screening of febrile patients with suspected malaria from the Brazilian Amazon for virus infection. Arch Virol 2022; 167:2151-2162. [PMID: 35841448 DOI: 10.1007/s00705-022-05514-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2021] [Accepted: 05/12/2022] [Indexed: 11/25/2022]
Abstract
Arthropod-borne viruses (arboviruses) are a significant public health threat, especially in tropical and subtropical regions. More than 150 arboviruses can cause febrile illness following infection in humans. The Brazilian Amazon region has the highest number of arboviruses detected worldwide. In addition to arboviruses, malaria, caused by Plasmodium vivax, is endemic in the Amazon. Patients with malaria and arboviral disease frequently show similar clinical presentation and laboratory findings, making the diagnosis of the cause of the infection challenging. The aim of this study was to evaluate the potential for viral infections in patients with suspected malaria but without Plasmodium infection in the Brazilian Amazon. We recruited 200 subjects with suspected malaria in Manaus, Brazil. First, we tested for arboviruses in serum samples from 124 of the 200 participants using an arbovirus DNA microarray platform, which did not detect any virus. Then, we mixed the serum samples of the other 76 participants in 10 pools and subjected them to next-generation sequencing. Analysis of the sequencing data revealed the presence of only one arbovirus (Zika virus) in one sample pool. This analysis also detected the presence of primate erythroparvovirus 1 and pegivirus C. These results suggest that arboviruses are not the most frequent viral infections in patients with suspected malaria but without Plasmodium infection in the metropolitan region of Manaus. Implementation of specific viral surveillance tests will help in the early detection of viruses with epidemic potential.
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Affiliation(s)
- Mario Luis Garcia de Figueiredo
- Laboratory of Virology, Department of Clinical Analyses, Toxicology and Food Sciences, School of Pharmaceutical Sciences of Ribeirao Preto, University of Sao Paulo, Ribeirao Preto, Sao Paulo, Brazil
| | - Evan P Williams
- Department of Microbiology, Immunology, and Biochemistry, The University of Tennessee Health Science Center, Memphis, TN, USA
| | - Colleen B Jonsson
- Department of Microbiology, Immunology, and Biochemistry, The University of Tennessee Health Science Center, Memphis, TN, USA
| | - Mohd Jaseem Khan
- Laboratory of Virology, Department of Clinical Analyses, Toxicology and Food Sciences, School of Pharmaceutical Sciences of Ribeirao Preto, University of Sao Paulo, Ribeirao Preto, Sao Paulo, Brazil
| | | | | | - Luiz Tadeu Moraes Figueiredo
- Ribeirao Preto Medical School, Virology Research Center, University of Sao Paulo, Ribeirao Preto, Sao Paulo, Brazil
| | | | - Maria Paula Gomes Mourão
- Fundação de Medicina Tropical Dr Heitor Vieira Dourado, Manaus, Amazonas, Brazil
- Universidade do Estado do Amazonas (UEA), Manaus, Amazonas, Brazil
| | - Marcus Vinícius Guimarães Lacerda
- Fundação de Medicina Tropical Dr Heitor Vieira Dourado, Manaus, Amazonas, Brazil.
- Instituto Leônidas and Maria Deane (FIOCRUZ-Amazonas), Fundação Oswaldo Cruz, Manaus, Amazonas, Brazil.
| | - Victor Hugo Aquino
- Laboratory of Virology, Department of Clinical Analyses, Toxicology and Food Sciences, School of Pharmaceutical Sciences of Ribeirao Preto, University of Sao Paulo, Ribeirao Preto, Sao Paulo, Brazil.
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Nastri AC, Duarte-Neto AN, Casadio LVB, Souza WMD, Claro IM, Manuli ER, Selegatto G, Salomão MC, Fialkovitz G, Taborda M, Almeida BLD, Magri MC, Guedes AR, Perdigão Neto LV, Sataki FM, Guimarães T, Mendes-Correa MC, Tozetto-Mendoza TR, Fumagalli MJ, Ho YL, Maia da Silva CA, Coletti TM, Goes de Jesus J, Romano CM, Hill SC, Pybus O, Rebello Pinho JR, Ledesma FL, Casal YR, Kanamura CT, Tadeu de Araújo LJ, Ferreira CSDS, Guerra JM, Figueiredo LTM, Dolhnikoff M, Faria NR, Sabino EC, Alves VAF, Levin AS. Understanding Sabiá virus infections (Brazilian mammarenavirus). Travel Med Infect Dis 2022; 48:102351. [PMID: 35537676 DOI: 10.1016/j.tmaid.2022.102351] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 04/27/2022] [Accepted: 04/28/2022] [Indexed: 02/09/2023]
Abstract
BACKGROUND Only two naturally occurring human Sabiá virus (SABV) infections have been reported, and those occurred over 20 years ago. METHODS We diagnosed two new cases of SABV infection using metagenomics in patients thought to have severe yellow fever and described new features of histopathological findings. RESULTS We characterized clinical manifestations, histopathology and analyzed possible nosocomial transmission. Patients presented with hepatitis, bleeding, neurological alterations and died. We traced twenty-nine hospital contacts and evaluated them clinically and by RT-PCR and neutralizing antibodies. Autopsies uncovered unique features on electron microscopy, such as hepatocyte "pinewood knot" lesions. Although previous reports with similar New-World arenavirus had nosocomial transmission, our data did not find any case in contact tracing. CONCLUSIONS Although an apparent by rare, Brazilian mammarenavirus infection is an etiology for acute hemorrhagic fever syndrome. The two fatal cases had peculiar histopathological findings not previously described. The virological diagnosis was possible only by contemporary techniques such as metagenomic assays. We found no subsequent infections when we used serological and molecular tests to evaluate close contacts.
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Affiliation(s)
- Ana Catharina Nastri
- Division of Infectious Diseases, Hospital das Clínicas, Faculdade de Medicina, Universidade de Sao Paulo, Brazil.
| | - Amaro Nunes Duarte-Neto
- Department of Pathology, Faculdade de Medicina, Universidade de Sao Paulo, Brazil; Núcleo de Anatomia Patológica, Instituto Adolfo Lutz, Sao Paulo, Brazil.
| | - Luciana Vilas Boas Casadio
- Division of Infectious Diseases, Hospital das Clínicas, Faculdade de Medicina, Universidade de Sao Paulo, Brazil.
| | - William Marciel de Souza
- World Reference Center for Emerging Viruses and Arboviruses and Department of Microbiology and Immunology, University of Texas Medical Branch at Galveston, Galveston, TX, USA.
| | - Ingra M Claro
- Department of Infectious Diseases, Faculdade de Medicina, Universidade de Sao Paulo, Brazil; Instituto de Medicina Tropical, Faculdade de Medicina, Universidade de Sao Paulo, Brazil.
| | - Erika R Manuli
- Department of Infectious Diseases, Faculdade de Medicina, Universidade de Sao Paulo, Brazil; Instituto de Medicina Tropical, Faculdade de Medicina, Universidade de Sao Paulo, Brazil.
| | - Gloria Selegatto
- Division of Infectious Diseases, Hospital das Clínicas, Faculdade de Medicina, Universidade de Sao Paulo, Brazil.
| | - Matias C Salomão
- Infection Control Department, Hospital das Clínicas, Faculdade de Medicina, Universidade de Sao Paulo, Brazil.
| | - Gabriel Fialkovitz
- Division of Infectious Diseases, Hospital das Clínicas, Faculdade de Medicina, Universidade de Sao Paulo, Brazil.
| | - Mariane Taborda
- Division of Infectious Diseases, Hospital das Clínicas, Faculdade de Medicina, Universidade de Sao Paulo, Brazil.
| | - Bianca Leal de Almeida
- Division of Infectious Diseases, Hospital das Clínicas, Faculdade de Medicina, Universidade de Sao Paulo, Brazil; Infection Control Department, Hospital das Clínicas, Faculdade de Medicina, Universidade de Sao Paulo, Brazil.
| | - Marcello C Magri
- Division of Infectious Diseases, Hospital das Clínicas, Faculdade de Medicina, Universidade de Sao Paulo, Brazil.
| | - Ana Rúbia Guedes
- Infection Control Department, Hospital das Clínicas, Faculdade de Medicina, Universidade de Sao Paulo, Brazil.
| | - Lauro Vieira Perdigão Neto
- Infection Control Department, Hospital das Clínicas, Faculdade de Medicina, Universidade de Sao Paulo, Brazil.
| | - Fatima Mitie Sataki
- Division of Infectious Diseases, Hospital das Clínicas, Faculdade de Medicina, Universidade de Sao Paulo, Brazil.
| | - Thais Guimarães
- Infection Control Department, Hospital das Clínicas, Faculdade de Medicina, Universidade de Sao Paulo, Brazil.
| | - Maria Cassia Mendes-Correa
- Department of Infectious Diseases, Faculdade de Medicina, Universidade de Sao Paulo, Brazil; Instituto de Medicina Tropical, Faculdade de Medicina, Universidade de Sao Paulo, Brazil.
| | | | - Marcilio Jorge Fumagalli
- Centro de Pesquisa em Virologia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil.
| | - Yeh-Li Ho
- Division of Infectious Diseases, Hospital das Clínicas, Faculdade de Medicina, Universidade de Sao Paulo, Brazil.
| | - Camila Alves Maia da Silva
- Department of Infectious Diseases, Faculdade de Medicina, Universidade de Sao Paulo, Brazil; Instituto de Medicina Tropical, Faculdade de Medicina, Universidade de Sao Paulo, Brazil.
| | - Thaís M Coletti
- Department of Infectious Diseases, Faculdade de Medicina, Universidade de Sao Paulo, Brazil; Instituto de Medicina Tropical, Faculdade de Medicina, Universidade de Sao Paulo, Brazil.
| | - Jaqueline Goes de Jesus
- Department of Infectious Diseases, Faculdade de Medicina, Universidade de Sao Paulo, Brazil; Instituto de Medicina Tropical, Faculdade de Medicina, Universidade de Sao Paulo, Brazil.
| | - Camila M Romano
- Department of Infectious Diseases, Faculdade de Medicina, Universidade de Sao Paulo, Brazil; Instituto de Medicina Tropical, Faculdade de Medicina, Universidade de Sao Paulo, Brazil.
| | - Sarah C Hill
- Department of Zoology, University of Oxford, United Kingdom Department of Pathobiology and Population Sciences, The Royal Veterinary College, United Kingdom; Department of Pathobiology and Population Sciences, Royal Veterinary College, Hatfield, United Kingdom.
| | - Oliver Pybus
- Department of Zoology, University of Oxford, United Kingdom.
| | - João Renato Rebello Pinho
- Instituto de Medicina Tropical, Faculdade de Medicina, Universidade de Sao Paulo, Brazil; Hospital Israelita Albert Einstein, São Paulo, SP, Brazil.
| | | | - Yuri R Casal
- Department of Pathology, Faculdade de Medicina, Universidade de Sao Paulo, Brazil.
| | | | | | | | | | - Luiz Tadeu Moraes Figueiredo
- Centro de Pesquisa em Virologia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil.
| | - Marisa Dolhnikoff
- Department of Pathology, Faculdade de Medicina, Universidade de Sao Paulo, Brazil.
| | - Nuno R Faria
- Instituto de Medicina Tropical, Faculdade de Medicina, Universidade de Sao Paulo, Brazil; Department of Zoology, University of Oxford, United Kingdom; MRC Centre for Global Infectious Disease Analysis, J-IDEA, Imperial College London, London, United Kingdom.
| | - Ester C Sabino
- Department of Infectious Diseases, Faculdade de Medicina, Universidade de Sao Paulo, Brazil; Instituto de Medicina Tropical, Faculdade de Medicina, Universidade de Sao Paulo, Brazil.
| | | | - Anna S Levin
- Division of Infectious Diseases, Hospital das Clínicas, Faculdade de Medicina, Universidade de Sao Paulo, Brazil; Department of Infectious Diseases, Faculdade de Medicina, Universidade de Sao Paulo, Brazil; Instituto de Medicina Tropical, Faculdade de Medicina, Universidade de Sao Paulo, Brazil; Infection Control Department, Hospital das Clínicas, Faculdade de Medicina, Universidade de Sao Paulo, Brazil.
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Dos Anjos Souza AB, Thomazelli V, Figueiredo LTM. Chikungunya and Mayaro infective viruses in components of blood. Transfus Med 2022; 32:252-255. [PMID: 35266221 DOI: 10.1111/tme.12855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Revised: 12/05/2021] [Accepted: 02/01/2022] [Indexed: 11/28/2022]
Abstract
OBJECTIVE Evaluate the infectivity of Alphavirus Chikungunya and Mayaro in blood products in plaque forming units (UFP/ml). BACKGROUND Arboviruses are responsible for sporadic diseases or epidemics which cause serious public health issues. Due to the high number of asymptomatic infections and high viremia, blood donors may pass on these viruses by transfusion. METHODS/MATERIALS This study used blood bags that would be discarded after evaluation and certification of the absence of infections. The blood products obtained by centrifuging a unit of whole blood were called blood components. All blood bags were infected with viable viruses (previously quantified) compatible with Chikungunya and Mayaro viremia. RESULTS Blood bags inoculated with both Chikungunya and Mayaro viruses were able to keep infective viruses during the processing of blood products (red blood cell concentrate, platelet concentrate and fresh frozen plasma) and also after the recommended storage for each component, which may infect individuals transfused with those. CONCLUSION The results indicate that in order to prevent infections by Mayaro and Chikungunya viruses in blood products it is necessary to stimulate the development and use of diagnostic tests for these pathogens in donated blood.
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Affiliation(s)
| | - Victória Thomazelli
- Virology Research Center, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
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Fumagalli MJ, Castro-Jorge LA, Fraga-Silva TFDC, de Azevedo PO, Capato CF, Rattis BAC, Hojo-Souza NS, Floriano VG, de Castro JT, Ramos SG, da Fonseca BAL, Bonato VLD, Gazzinelli RT, Figueiredo LTM. Protective Immunity against Gamma and Zeta Variants after Inactivated SARS-CoV-2 Virus Immunization. Viruses 2021; 13:2440. [PMID: 34960708 PMCID: PMC8707686 DOI: 10.3390/v13122440] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Revised: 11/27/2021] [Accepted: 11/28/2021] [Indexed: 01/08/2023] Open
Abstract
The persistent circulation of SARS-CoV-2 represents an ongoing global threat due to the emergence of new viral variants that can sometimes evade the immune system of previously exposed or vaccinated individuals. We conducted a follow-up study of adult individuals that had received an inactivated SARS-CoV-2 vaccine, evaluating antibody production and neutralizing activity over a period of 6 months. In addition, we performed mice immunization with inactivated SARS-CoV-2, and evaluated the immune response and pathological outcomes against Gamma and Zeta variant infection. Vaccinated individuals produced high levels of antibodies with robust neutralizing activity, which was significantly reduced against Gamma and Zeta variants. Production of IgG anti-S antibodies and neutralizing activity robustly reduced after 6 months of vaccination. Immunized mice demonstrated cellular response against Gamma and Zeta variants, and after viral infection, reduced viral loads, IL-6 expression, and histopathological outcome in the lungs. TNF levels were unchanged in immunized or not immunized mice after infection with the Gamma variant. Furthermore, serum neutralization activity rapidly increases after infection with the Gamma and Zeta variants. Our data suggest that immunization with inactivated WT SARS-CoV-2 induces a promptly responsive cross-reactive immunity response against the Gamma and Zeta variants, reducing COVID-19 pathological outcomes.
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Affiliation(s)
- Marcilio Jorge Fumagalli
- Virology Research Center, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto 14049-900, São Paulo, Brazil; (L.A.C.-J.); (C.F.C.); (V.G.F.); (B.A.L.d.F.); (L.T.M.F.)
- Basic and Applied Immunology Program, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto 14049-900, São Paulo, Brazil; (V.L.D.B.); (R.T.G.)
| | - Luiza Antunes Castro-Jorge
- Virology Research Center, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto 14049-900, São Paulo, Brazil; (L.A.C.-J.); (C.F.C.); (V.G.F.); (B.A.L.d.F.); (L.T.M.F.)
| | | | - Patrick Orestes de Azevedo
- Immunopathology Laboratory, René Rachou Institute, Oswaldo Cruz Foundation, Belo Horizonte 30190-002, Minas Gerais, Brazil; (P.O.d.A.); (N.S.H.-S.); (J.T.d.C.)
| | - Carlos Fabiano Capato
- Virology Research Center, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto 14049-900, São Paulo, Brazil; (L.A.C.-J.); (C.F.C.); (V.G.F.); (B.A.L.d.F.); (L.T.M.F.)
| | - Bruna Amanda Cruz Rattis
- Department of Pathology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto 14049-900, São Paulo, Brazil; (B.A.C.R.); (S.G.R.)
| | - Natália Satchiko Hojo-Souza
- Immunopathology Laboratory, René Rachou Institute, Oswaldo Cruz Foundation, Belo Horizonte 30190-002, Minas Gerais, Brazil; (P.O.d.A.); (N.S.H.-S.); (J.T.d.C.)
| | - Vitor Gonçalves Floriano
- Virology Research Center, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto 14049-900, São Paulo, Brazil; (L.A.C.-J.); (C.F.C.); (V.G.F.); (B.A.L.d.F.); (L.T.M.F.)
| | - Julia Teixeira de Castro
- Immunopathology Laboratory, René Rachou Institute, Oswaldo Cruz Foundation, Belo Horizonte 30190-002, Minas Gerais, Brazil; (P.O.d.A.); (N.S.H.-S.); (J.T.d.C.)
| | - Simone Gusmão Ramos
- Department of Pathology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto 14049-900, São Paulo, Brazil; (B.A.C.R.); (S.G.R.)
| | - Benedito Antônio Lopes da Fonseca
- Virology Research Center, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto 14049-900, São Paulo, Brazil; (L.A.C.-J.); (C.F.C.); (V.G.F.); (B.A.L.d.F.); (L.T.M.F.)
| | - Vânia Luiza Deperon Bonato
- Basic and Applied Immunology Program, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto 14049-900, São Paulo, Brazil; (V.L.D.B.); (R.T.G.)
- Department of Biochemistry and Immunology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto 14049-900, São Paulo, Brazil;
| | - Ricardo Tostes Gazzinelli
- Basic and Applied Immunology Program, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto 14049-900, São Paulo, Brazil; (V.L.D.B.); (R.T.G.)
- Immunopathology Laboratory, René Rachou Institute, Oswaldo Cruz Foundation, Belo Horizonte 30190-002, Minas Gerais, Brazil; (P.O.d.A.); (N.S.H.-S.); (J.T.d.C.)
- Platform of Translational Medicine, Fundação Oswaldo Cruz, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto 14049-900, São Paulo, Brazil
| | - Luiz Tadeu Moraes Figueiredo
- Virology Research Center, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto 14049-900, São Paulo, Brazil; (L.A.C.-J.); (C.F.C.); (V.G.F.); (B.A.L.d.F.); (L.T.M.F.)
- Basic and Applied Immunology Program, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto 14049-900, São Paulo, Brazil; (V.L.D.B.); (R.T.G.)
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Fumagalli MJ, Capato CF, de Castro-Jorge LA, de Souza WM, Arruda E, Figueiredo LTM. Stability of SARS-CoV-2 and other airborne viruses under different stress conditions. Arch Virol 2021; 167:183-187. [PMID: 34727217 PMCID: PMC8561365 DOI: 10.1007/s00705-021-05293-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2021] [Accepted: 09/20/2021] [Indexed: 11/24/2022]
Abstract
Viral stability under stress conditions may directly affect viral dissemination, seasonality, and pathogenesis. We exposed airborne viruses, including severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), mumps virus, coxsackievirus B5, human rhinovirus A16, and respiratory syncytial virus, to different temperatures, UV light exposure time, pH values, and osmotic pressures and measured the remaining viral infectivity. Reduced thermal stability was observed for coxsackievirus B5 at 45 °C, while SARS-CoV-2 demonstrated residual infectivity at 55 °C. UV light exposure was an efficient means of viral inactivation but was less efficient for non-enveloped viruses. Rhinovirus A16 and respiratory syncytial virus demonstrated extreme sensitivity to acid conditions, while SARS-CoV-2, rhinovirus A16, and respiratory syncytial virus were unstable in an alkaline environment. The information obtained in this study will be useful for the development of viral inactivation methods and may be correlated with epidemiological and seasonal viral characteristics.
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Affiliation(s)
- Marcilio Jorge Fumagalli
- Virology Research Center, Ribeirão Preto Medical School, University of São Paulo, Av. Bandeirantes 3900, Vila Monte Alegre, Ribeirão Preto, 140490-900, Brazil.
| | - Carlos Fabiano Capato
- Virology Research Center, Ribeirão Preto Medical School, University of São Paulo, Av. Bandeirantes 3900, Vila Monte Alegre, Ribeirão Preto, 140490-900, Brazil
| | - Luiza Antunes de Castro-Jorge
- Virology Research Center, Ribeirão Preto Medical School, University of São Paulo, Av. Bandeirantes 3900, Vila Monte Alegre, Ribeirão Preto, 140490-900, Brazil
| | - William Marciel de Souza
- Virology Research Center, Ribeirão Preto Medical School, University of São Paulo, Av. Bandeirantes 3900, Vila Monte Alegre, Ribeirão Preto, 140490-900, Brazil
| | - Eurico Arruda
- Virology Research Center, Ribeirão Preto Medical School, University of São Paulo, Av. Bandeirantes 3900, Vila Monte Alegre, Ribeirão Preto, 140490-900, Brazil
| | - Luiz Tadeu Moraes Figueiredo
- Virology Research Center, Ribeirão Preto Medical School, University of São Paulo, Av. Bandeirantes 3900, Vila Monte Alegre, Ribeirão Preto, 140490-900, Brazil
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de Souza WM, Fumagalli MJ, Carrera JP, de Araujo J, Cardoso JF, de Carvalho C, Durigon EL, Queiroz LH, Faria NR, Murcia PR, Figueiredo LTM. Paramyxoviruses from neotropical bats suggest a novel genus and nephrotropism. Infect Genet Evol 2021; 95:105041. [PMID: 34411742 DOI: 10.1016/j.meegid.2021.105041] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 08/11/2021] [Accepted: 08/13/2021] [Indexed: 12/21/2022]
Abstract
Paramyxoviruses have a broad host range and geographic distribution, including human pathogens transmitted by bats, such as Nipah and Hendra viruses. In this study, we combined high-throughput sequencing and molecular approaches to investigate the presence of paramyxoviruses in neotropical bats (Microchiroptera suborder) in Brazil. We discovered and characterized three novel paramyxoviruses in the kidney tissues of apparently healthy common vampire bats (D. rotundus) and Seba's short-tailed bats (C. perspicillata), which we tentatively named Kanhgág virus (KANV), Boe virus (BOEV), and Guató virus (GUATV). In this study, we classified these viruses as putative species into the Macrojêvirus genus, a newly proposed genus of the Orthoparamyxovirinae subfamily. Using RT-PCR, we detected these viruses in 20.9% (9 out of 43) of bats tested, and viral RNA was detected exclusively in kidney tissues. Attempts to isolate infectious virus were successful for KANV and GUATV. Our results expand the viral diversity, host range, and geographical distribution of the paramyxoviruses.
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Affiliation(s)
- William Marciel de Souza
- World Reference Center for Emerging Viruses and Arboviruses and Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX, USA; Virology Research Center, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil.
| | - Marcilio Jorge Fumagalli
- Virology Research Center, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Jean Paul Carrera
- Department of Zoology, University of Oxford, Oxford, UK; Department of Research in Virology and Biotechnology, Gorgas Memorial Institute of Health Studies, Panama City, Panama
| | - Jansen de Araujo
- Institute of Biomedical Sciences, University of São Paulo, São Paulo, São Paulo, Brazil
| | | | - Cristiano de Carvalho
- Faculty of Veterinary Medicine, São Paulo State University, Araçatuba, São Paulo, Brazil
| | - Edison Luiz Durigon
- Institute of Biomedical Sciences, University of São Paulo, São Paulo, São Paulo, Brazil
| | - Luzia Helena Queiroz
- Faculty of Veterinary Medicine, São Paulo State University, Araçatuba, São Paulo, Brazil
| | - Nuno Rodrigues Faria
- Department of Zoology, University of Oxford, Oxford, UK; Department of Infectious Disease Epidemiology, Imperial College London, London, UK
| | - Pablo R Murcia
- MRC-University of Glasgow Centre for Virus Research, Glasgow, United Kingdom
| | - Luiz Tadeu Moraes Figueiredo
- Virology Research Center, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
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8
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Fumagalli MJ, Figueiredo LTM, Aquino VH. Linear and Continuous Flavivirus Epitopes From Naturally Infected Humans. Front Cell Infect Microbiol 2021; 11:710551. [PMID: 34458161 PMCID: PMC8387565 DOI: 10.3389/fcimb.2021.710551] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2021] [Accepted: 07/15/2021] [Indexed: 12/27/2022] Open
Abstract
This manuscript is an up-to-date review of experimentally validated linear and continuous epitopes identified from arbovirus members of the Flavivirus genus. We summarized 153 immunoreactive peptides from the Dengue virus, Zika virus, Japanese encephalitis virus, West Nile virus, and tick-borne encephalitis virus described in studies published from 1989 to 2020. We included peptides from structural (envelope, capsid, and pre-membrane) and nonstructural (Ns1–5) viral proteins that demonstrated relevant immunoreactivity with antibodies from naturally infected or vaccinated humans. We included peptides that demonstrated relevant reactivity features, such as indicators of disease severity related to immunological or immunopathological outcomes, differential or group diagnostic markers, immunotherapy candidates, and potential for vaccine formulation. The majority of immunoreactive peptides were described for DENV probably due to its long-lasting impact on human health and the lack of efficient vaccines and therapeutic methods. Immune landscape data regarding linear immunoreactive and continuous flavivirus peptides are still scarce, and a complete and more detailed map remains to be elucidated. Therefore, this review provides valuable data for those investigating the antibody response against flavivirus infection.
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Affiliation(s)
- Marcilio Jorge Fumagalli
- Virology Research Center, Medical School of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | | | - Victor Hugo Aquino
- Laboratory of Virology, Department of Clinical Analyses, Toxicology and Food Sciences, Faculty of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
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9
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Romeiro MF, Fumagalli MJ, Dos Anjos AB, Figueiredo LTM. Serological evidence of Mayaro virus infection in blood donors from São Carlos, São Paulo, Brazil. Trans R Soc Trop Med Hyg 2021; 114:686-689. [PMID: 32333001 DOI: 10.1093/trstmh/traa016] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Human infections by Mayaro virus (MAYV) occur by insect bites upon exposure to rural or sylvatic areas. Information regarding MAYV transmission is limited due to a lack of commercial diagnostic assays and diagnostic confusion on account of similarities of clinical signs with other co-circulating arboviral diseases. METHODS A serological survey of MAYV and Chikunguya virus (CHIKV) antibodies was performed by ELISA. Between 2017 and 2018, 5608 blood donor samples were tested. RESULTS Specific IgM and IgG antibodies to MAYV were detected respectively in 36 and 11 samples, indicating a total seroprevalence of approximately 0.83%. Neutralization activity was observed in two IgG positive sera. Additionally, eight distinct samples had IgM antibodies to CHIKV alone. CONCLUSIONS Our data suggest previously unreported circulation of MAYV in São Carlos city, from southeastern Brazil.
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Affiliation(s)
- Marilia Farignoli Romeiro
- Virology Research Center, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo state, Brazil
| | - Marcílio Jorge Fumagalli
- Virology Research Center, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo state, Brazil
| | - Ana Beatriz Dos Anjos
- Virology Research Center, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo state, Brazil.,Banco de Sangue da Irmandade da Santa Casa de Misericórdia de São Carlos, São Carlos, São Paulo state, Brazil
| | - Luiz Tadeu Moraes Figueiredo
- Virology Research Center, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo state, Brazil
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10
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Calderón A, Guzmán C, Oviedo-Socarras T, Mattar S, Rodríguez V, Castañeda V, Moraes Figueiredo LT. Two Cases of Natural Infection of Dengue-2 Virus in Bats in the Colombian Caribbean. Trop Med Infect Dis 2021; 6:tropicalmed6010035. [PMID: 33809400 PMCID: PMC8005977 DOI: 10.3390/tropicalmed6010035] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Revised: 02/03/2021] [Accepted: 02/08/2021] [Indexed: 11/16/2022] Open
Abstract
Dengue, a mosquito-borne zoonotic disease, is the most common vector-borne disease in tropical and subtropical areas. In this study, we aim to demonstrate biological evidence of dengue virus infection in bats. A cross-sectional study was carried out in the departments of Cordoba and Sucre, Colombia. A total of 286 bats were captured following the ethical protocols of animal experimentation. The specimens were identified and euthanized using a pharmacological treatment with atropine, acepromazine and sodium pentobarbital. Duplicate samples of brain, heart, lung, spleen, liver, and kidney were collected with one set stored in Trizol and the other stored in 10% buffered formalin for histopathological and immunohistochemical analysis using polyclonal antibodies. Brain samples from lactating mice with an intracranial inoculation of DENV-2 were used as a positive control. As a negative control, lactating mouse brains without inoculation and bats brains negative for RT-PCR were included. Tissue sections from each specimen of bat without conjugate were used as staining control. In a specimen of Carollia perspicillata captured in Ayapel (Cordoba) and Phylostomus discolor captured in San Carlos (Cordoba), dengue virus was detected, and sequences were matched to DENV serotype 2. In bats RT-PCR positive for dengue, lesions compatible with viral infections, and the presence of antigens in tissues were observed. Molecular findings, pathological lesions, and detection of antigens in tissues could demonstrate viral DENV-2 replication and may correspond to natural infection in bats. Additional studies are needed to elucidate the exact role of these species in dengue epidemics.
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Affiliation(s)
- Alfonso Calderón
- Faculty of Veterinary Medicine and Animal Production Husbandry, Institute for Biological Research in the Tropics (IIBT), University of Cordoba, Monteria 230002, Cordoba, Colombia;
| | - Camilo Guzmán
- Department of Pharmacy, Faculty of Health Sciences, Institute for Biological Research in the Tropics (IIBT), University of Cordoba, Monteria 230002, Cordoba, Colombia;
| | - Teresa Oviedo-Socarras
- Research Group on Tropical Animal Production (GIPAT), Faculty of Veterinary Medicine and Animal Production Husbandry, University of Cordoba, Monteria 230002, Cordoba, Colombia;
| | - Salim Mattar
- Faculty of Veterinary Medicine and Animal Production Husbandry, Institute for Biological Research in the Tropics (IIBT), University of Cordoba, Monteria 230002, Cordoba, Colombia;
- Correspondence: or
| | - Virginia Rodríguez
- Bacteriological Program, Microbiological and Biomedical Research Group of Cordoba (GIMBIC), Faculty of Health Sciences, University of Cordoba, Monteria 230002, Cordoba, Colombia;
| | - Víctor Castañeda
- Veterinary Diagnostic Laboratories Network, Colombian Agricultural Institute, Cerete 230550, Cordoba, Colombia;
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11
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de Lima STS, de Souza WM, Cavalcante JW, da Silva Candido D, Fumagalli MJ, Carrera JP, Simões Mello LM, De Carvalho Araújo FM, Cavalcante Ramalho IL, de Almeida Barreto FK, de Melo Braga DN, Simião AR, Miranda da Silva MJ, Alves Barbosa Oliveira RDM, Lima CPS, de Sousa Lins C, Barata RR, Pereira Melo MN, Caldas de Souza MP, Franco LM, Fernandes Távora FR, Queiroz Lemos DR, de Alencar CHM, de Jesus R, de Souza Fonseca V, Dutra LH, de Abreu AL, Lima Araújo EL, Ribas Freitas AR, Vianez Júnior JLDSG, Pybus OG, Figueiredo LTM, Faria NR, Nunes MRT, Cavalcanti LPDG, Miyajima F. Fatal Outcome of Chikungunya Virus Infection in Brazil. Clin Infect Dis 2020; 73:e2436-e2443. [PMID: 32766829 PMCID: PMC8492446 DOI: 10.1093/cid/ciaa1038] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Accepted: 07/22/2020] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Chikungunya virus (CHIKV) emerged in the Americas in 2013 and has caused approximately 2.1 million cases and >600 deaths. A retrospective investigation was undertaken to describe clinical, epidemiological, and viral genomic features associated with deaths caused by CHIKV in Ceará state, northeast Brazil. METHODS Sera, cerebrospinal fluid (CSF), and tissue samples from 100 fatal cases with suspected arbovirus infection were tested for CHIKV, dengue virus (DENV), and Zika virus (ZIKV). Clinical, epidemiological, and death reports were obtained for patients with confirmed CHIKV infection. Logistic regression analysis was undertaken to identify independent factors associated with risk of death during CHIKV infection. Phylogenetic analysis was conducted using whole genomes from a subset of cases. RESULTS Sixty-eight fatal cases had CHIKV infection confirmed by reverse-transcription quantitative polymerase chain reaction (52.9%), viral antigen (41.1%), and/or specific immunoglobulin M (63.2%). Co-detection of CHIKV with DENV was found in 22% of fatal cases, ZIKV in 2.9%, and DENV and ZIKV in 1.5%. A total of 39 CHIKV deaths presented with neurological signs and symptoms, and CHIKV-RNA was found in the CSF of 92.3% of these patients. Fatal outcomes were associated with irreversible multiple organ dysfunction syndrome. Patients with diabetes appear to die at a higher frequency during the subacute phase. Genetic analysis showed circulation of 2 CHIKV East-Central-South African (ECSA) lineages in Ceará and revealed no unique virus genomic mutation associated with fatal outcome. CONCLUSIONS The investigation of the largest cross-sectional cohort of CHIKV deaths to date reveals that CHIKV-ECSA strains can cause death in individuals from both risk and nonrisk groups, including young adults.
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Affiliation(s)
| | | | | | | | | | - Jean-Paul Carrera
- Department of Zoology, University of Oxford, Oxford, United Kingdom.,Department of Research in Virology and Biotechnology, Gorgas Memorial Institute of Health Studies, Panama City, Panama
| | | | | | | | | | | | | | | | | | | | - Camila de Sousa Lins
- Faculdade de Medicina do Centro Universitário Christus, Fortaleza, Ceará, Brazil
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Oliver G Pybus
- Department of Zoology, University of Oxford, Oxford, United Kingdom
| | | | - Nuno Rodrigues Faria
- Department of Zoology, University of Oxford, Oxford, United Kingdom.,Department of Infectious Disease Epidemiology, Imperial College London, London, United Kingdom
| | | | | | - Fabio Miyajima
- Federal University of Ceará, Fortaleza, Brazil.,Oswaldo Cruz Foundation (Fiocruz), Branch Ceará, Eusebio, Brazil
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12
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Guzmán C, Calderón A, Oviedo T, Mattar S, Castañeda J, Rodriguez V, Moraes Figueiredo LT. Molecular and cellular evidence of natural Venezuelan equine encephalitis virus infection in frugivorous bats in Colombia. Vet World 2020; 13:495-501. [PMID: 32367955 PMCID: PMC7183472 DOI: 10.14202/vetworld.2020.495-501] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Accepted: 01/22/2020] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND AND AIM Venezuelan equine encephalitis virus (VEEV) is an alphavirus that causes encephalitis with a high impact on public health in Latin America. However, only in Guatemala, Trinidad and Tobago, and Mexico have found antibodies in VEEV in bats, using immunohistochemistry, the sensitivity and specificity are improved; thus, it is better for demonstrating natural infection in bats as potential hosts. This study aimed to determine the presence of VEEV in tissues of frugivorous bats. MATERIALS AND METHODS A prospective descriptive cross-sectional study with a non-probabilistic sampling was carried out in 12 localities of Córdoba and Sucre area of the Colombian Caribbean. Two hundred and eighty-six bats were captured using fog nets, and the specimens according to taxonomic keys were classified. According to the Ethics Committee of the University of Córdoba, the bats were treated with analgesics and anesthetics. Blood samples were taken and then euthanized to obtain tissues and organs which were preserved in liquid N2 at -196°C. A portion of each organ was fixed in 10% buffered formalin for the detection of antigens by immunohistochemistry. Several pathological anatomy analyses were performed to determine the histological characteristics of tissue lesions of frugivorous bats naturally infected with the VEEV. RESULTS Of the 286 bats captured, 23 species were identified. In samples of the brain, spleen, and lung of two frugivorous bats (2/286=0.70%) Artibeus planirostris and Sturnira lilium, the presence of VEEV was confirmed by immunohistochemistry. CONCLUSION A fragment of the nsP4 non-structural protein gene corresponding to the alphavirus was amplified. Two samples were positive (2/286=0.70%) in frugivorous bats; A. planirostris (code GenBank: MG820274) and S. lilium (code GenBank: MG820275). The present study showed the first molecular evidence and cellular evidence (histopathology and immunohistochemistry) of natural VEEV infection in frugivorous bats in Colombia; these bats could be a host of this zoonosis.
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Affiliation(s)
- Camilo Guzmán
- Department of Pharmacy, Faculty of Health Sciences, Institute of Biological Research of the Tropics, University of Córdoba, Colombia
| | - Alfonso Calderón
- Faculty of Veterinary Medicine and Animal, Institute for Biological Research in the Tropics, University of Córdoba, Colombia
| | | | - Salim Mattar
- Faculty of Veterinary Medicine and Animal, Institute of Biological Research of the Tropics, University of Córdoba, Colombia
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13
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Sabino-Santos G, Ferreira FF, da Silva DJF, Machado DM, da Silva SG, São Bernardo CS, Dos Santos Filho M, Levi T, Figueiredo LTM, Peres CA, de Morais Bronzoni RV, Canale GR. Hantavirus antibodies among phyllostomid bats from the arc of deforestation in Southern Amazonia, Brazil. Transbound Emerg Dis 2019; 67:1045-1051. [PMID: 31793244 DOI: 10.1111/tbed.13442] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Revised: 11/19/2019] [Accepted: 11/25/2019] [Indexed: 12/15/2022]
Abstract
In order to determine whether southern Amazonian bats could harbour hantaviruses we, serologically and molecularly, screened blood, saliva, excreta and organ tissues of 47 bats captured from September to December 2015. We found that only phyllostomid bats presented antibodies against hantavirus. The seropositive bats belonged to two species of Phyllostomid bats: the greater spear-nosed bat Phyllostomus hastatus (omnivorous) and the gnome fruit-eating bat Dermanura gnoma. The overall seroprevalence was of 4.2%. Therefore, we show here that hantaviruses are circulating among phyllostomid bats in the Amazonian arc of deforestation.
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Affiliation(s)
- Gilberto Sabino-Santos
- Center for Virology Research, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto-SP, Brazil.,Department of Laboratory Medicine, University of California San Francisco, San Francisco, CA, United States
| | - Francimeire Fernandes Ferreira
- Biological Collection of Southern Amazon, Federal University of Mato Grosso, Sinop-MT, Brazil.,Graduate Program of Environmental Sciences, Department of Biological Sciences, State University of Mato Grosso, Caceres-MT, Brazil
| | - David José Ferreira da Silva
- Laboratory of Immunology and Virology, Veterinary Medicine Hospital, Federal University of Mato Grosso, Sinop-MT, Brazil
| | - Danilo Melo Machado
- Center for Virology Research, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto-SP, Brazil
| | - Sergio Gomes da Silva
- Laboratory of Biological and Ecological Sciences, Federal Institute of Sciences, Education and Technologies of Mato Grosso State, Pontes e Lacerda-MT, Brazil
| | | | - Manoel Dos Santos Filho
- Laboratory of Mammalogy, Department of Biological Sciences, State University of Mato Grosso, Caceres-MT, Brazil
| | - Taal Levi
- Laboratory of Quantitative Wildlife Ecology, Conservation, and Environmental Genetics, Department of Fisheries and Wildlife, Oregon State University, Corvallis, OR, USA
| | | | - Carlos A Peres
- School of Environmental Sciences, University of East Anglia, Norwich, UK
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14
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de Souza WM, Fumagalli MJ, Martin MC, de Araujo J, Orsi MA, Sanfilippo LF, Modha S, Durigon EL, Proença-Módena JL, Arns CW, Murcia PR, Figueiredo LTM. Pingu virus: A new picornavirus in penguins from Antarctica. Virus Evol 2019; 5:vez047. [PMID: 31850147 PMCID: PMC6908804 DOI: 10.1093/ve/vez047] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
Picornaviridae family comprises single-stranded, positive-sense RNA viruses distributed into forty-seven genera. Picornaviruses have a broad host range and geographic distribution in all continents. In this study, we applied a high-throughput sequencing approach to examine the presence of picornaviruses in penguins from King George Island, Antarctica. We discovered and characterized a novel picornavirus from cloacal swab samples of gentoo penguins (Pygoscelis papua), which we tentatively named Pingu virus. Also, using RT-PCR we detected this virus in 12.9 per cent of cloacal swabs derived from P. papua, but not in samples from adélie penguins (Pygoscelis adeliae) or chinstrap penguins (Pygoscelis antarcticus). Attempts to isolate the virus in a chicken cell line and in embryonated chicken eggs were unsuccessful. Our results expand the viral diversity, host range, and geographical distribution of the Picornaviridae.
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Affiliation(s)
- William Marciel de Souza
- Virology Research Center, Ribeirão Preto Medical School, University of São Paulo, Avenida dos Bandeirantes 3900, Ribeirão Preto, SP, 14049-900 Brazil
| | - Marcílio Jorge Fumagalli
- Virology Research Center, Ribeirão Preto Medical School, University of São Paulo, Avenida dos Bandeirantes 3900, Ribeirão Preto, SP, 14049-900 Brazil
| | - Matheus Cavalheiro Martin
- Department of Genetics, Evolution, Microbiology and Immunology, Institute of Biology, University of Campinas (UNICAMP), Rua Monteiro Lobato, 255Cidade Universitária "Zeferino Vaz", Campinas, SP, 13083-862 Brazil
| | - Jansen de Araujo
- Institute of Biomedical Sciences, University of São Paulo, Av. Prof. Lineu Prestes, 2415 - Butantã, São Paulo - SP, 05508-900 Brazil
| | - Maria Angela Orsi
- Department of Genetics, Evolution, Microbiology and Immunology, Institute of Biology, University of Campinas (UNICAMP), Rua Monteiro Lobato, 255Cidade Universitária "Zeferino Vaz", Campinas, SP, 13083-862 Brazil
| | - Luiz Francisco Sanfilippo
- Institute of Biomedical Sciences, University of São Paulo, Av. Prof. Lineu Prestes, 2415 - Butantã, São Paulo - SP, 05508-900 Brazil
| | - Sejal Modha
- MRC-University of Glasgow Centre for Virus Research, 464 Bearsden Rd, Bearsden, Glasgow G61 1QH, UK
| | - Edison Luiz Durigon
- Institute of Biomedical Sciences, University of São Paulo, Av. Prof. Lineu Prestes, 2415 - Butantã, São Paulo - SP, 05508-900 Brazil
| | - José Luiz Proença-Módena
- Department of Genetics, Evolution, Microbiology and Immunology, Institute of Biology, University of Campinas (UNICAMP), Rua Monteiro Lobato, 255Cidade Universitária "Zeferino Vaz", Campinas, SP, 13083-862 Brazil
| | - Clarice Weis Arns
- Department of Genetics, Evolution, Microbiology and Immunology, Institute of Biology, University of Campinas (UNICAMP), Rua Monteiro Lobato, 255Cidade Universitária "Zeferino Vaz", Campinas, SP, 13083-862 Brazil
| | - Pablo Ramiro Murcia
- MRC-University of Glasgow Centre for Virus Research, 464 Bearsden Rd, Bearsden, Glasgow G61 1QH, UK
| | - Luiz Tadeu Moraes Figueiredo
- Virology Research Center, Ribeirão Preto Medical School, University of São Paulo, Avenida dos Bandeirantes 3900, Ribeirão Preto, SP, 14049-900 Brazil
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15
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Fumagalli MJ, de Souza WM, de Araujo J, Modha S, Queiroz LH, Durigon EL, Murcia PR, Figueiredo LTM. Krykféie dicistrovirus: A novel dicistrovirus in velvety free-tailed bats from Brazil. Infect Genet Evol 2019; 75:104036. [PMID: 31499226 DOI: 10.1016/j.meegid.2019.104036] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Revised: 09/04/2019] [Accepted: 09/05/2019] [Indexed: 11/26/2022]
Abstract
The Dicistroviridae family comprises positive single-stranded RNA viruses that are classified into Picornavirales order. These viruses are identified in arthropod hosts, including some having devastating economic consequences. Here, we described and characterized a novel nearly complete dicistrovirus genome identified in liver samples of velvety free-tailed bats (Molossus molossus) collected in June 2010 in Araçatuba city, São Paulo State, Brazil. This novel virus presents a genome of 9262 nucleotides in length and a typical dicistrovirus genome organization. Based on our phylogenetic analysis and ICTV criteria, we propose this virus as a novel species into the Triatovirus genus. Attempts of viral propagation in Vero E6 and C6/36 cell lines were unsuccessful. The novel dicistrovirus was detected only in one out of nine liver bat samples, representing for the first time an internal organ detection from a representative of this virus family.
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Affiliation(s)
- Marcílio Jorge Fumagalli
- Virology Research Center, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil.
| | - William Marciel de Souza
- Virology Research Center, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Jansen de Araujo
- Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Sejal Modha
- MRC-University of Glasgow Centre for Virus Research, Glasgow, United Kingdom
| | | | - Edison Luiz Durigon
- Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Pablo Ramiro Murcia
- MRC-University of Glasgow Centre for Virus Research, Glasgow, United Kingdom
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16
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Figueiredo LTM. Human Urban Arboviruses Can Infect Wild Animals and Jump to Sylvatic Maintenance Cycles in South America. Front Cell Infect Microbiol 2019; 9:259. [PMID: 31380302 PMCID: PMC6653809 DOI: 10.3389/fcimb.2019.00259] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Accepted: 07/03/2019] [Indexed: 11/14/2022] Open
Abstract
The present study shows that the most prominent human arboviruses worldwide (dengue viruses 1, 2, 3, and 4, Chikungunya virus, and Zika virus) can infect wild animals and transfer from urban to sylvatic maintenance cycles in South America, as did the yellow fever virus (YFV) in the past. All these viruses are transmitted by the anthropophilic mosquito Aedes aegypti and cause epidemics throughout Brazil. The YFV is the oldest example of an urban arbovirus that became sylvatic in South America. Currently, the disease is a zoonosis of non-human primates that moves like a wave through the forests of the Brazilian countryside, traveling thousands of kilometers, killing many animals and eventually infecting man. However, since 2016, this zoonotic wave has reached the highly populated areas of Southeast Brazil, producing the largest human outbreak in the past 60 years. As with the YFV, sylvatic cycles may occur with dengue, Chikungunya, and Zika. In order to become sylvatic, arboviruses require an apparently unlikely conjunction of factors to unexpectedly take place. These arboviruses could start to infect sylvatic primates and be transmitted by Haemagogus mosquitoes that inhabit tree canopies. We mention here publications reporting evidence of sylvatic cycles of dengue, Chikungunya, and Zika virus in South America. Indeed, it is almost unfeasible to control these cycles of arboviruses since it is impossible to know where, when or why an arboviral spill-over would occur in wild animals. The sylvatic maintenance cycle could preclude the eradication of an arbovirus. Moreover, an arbovirus in a sylvatic cycle could re-emerge anytime, infecting humans and producing outbreaks. In case of the reemergence of an arbovirus, it is crucial to prevent the occurrence of an urban cycle as a spill-back from the sylvatic cycle.
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17
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Calderón A, Guzmán C, Mattar S, Rodriguez V, Martínez C, Violet L, Martínez J, Figueiredo LTM. Dengue Virus in Bats from Córdoba and Sucre, Colombia. Vector Borne Zoonotic Dis 2019; 19:747-751. [PMID: 31211661 PMCID: PMC6765209 DOI: 10.1089/vbz.2018.2324] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Natural infection of dengue virus (DENV) in bats is an unexplored field in Colombia. To detect the presence of DENV in bats, a descriptive prospective study using a nonprobabilistic sampling was carried out; 286 bats in 12 sites were caught. Sample tissues of different animals were obtained; the RNA was obtained from tissues and a nested-RT-PCR was carried out and detected amplicons of 143 fragment of the NS5 gene were sequenced by the Sanger method. In nonhematophagous bats Carollia perspicillata and Phyllostomus discolor captured in Ayapel and San Carlos (Córdoba), respectively, an amplicon corresponding to NS5 was detected. The amplicons showed a high similarity with serotype-2 dengue virus (DENV-2). This is the first evidence of the DENV-2 genome in bats in from the Colombian Caribbean.
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Affiliation(s)
- Alfonso Calderón
- Department of Bacterilogy, Faculty of Health Sciences, University of Córdoba, Montería, Colombia.,Doctorate in Tropical Medicine SUE-Caribe, University of Córdoba, Monteria, Colombia
| | - Camilo Guzmán
- Department of Bacterilogy, Faculty of Health Sciences, University of Córdoba, Montería, Colombia.,Doctorate in Tropical Medicine SUE-Caribe, University of Córdoba, Monteria, Colombia
| | - Salim Mattar
- Department of Bacterilogy, Faculty of Health Sciences, University of Córdoba, Montería, Colombia
| | - Virginia Rodriguez
- Institute of Virology, Faculty of Medicine, University São Paulo, Ribeirão Preto, Brazil
| | - Caty Martínez
- Department of Bacterilogy, Faculty of Health Sciences, University of Córdoba, Montería, Colombia
| | - Lina Violet
- Department of Bacterilogy, Faculty of Health Sciences, University of Córdoba, Montería, Colombia
| | - Jairo Martínez
- Department of Bacterilogy, Faculty of Health Sciences, University of Córdoba, Montería, Colombia
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Russo RR, dos Santos Júnior NN, Cintra ACO, Figueiredo LTM, Sampaio SV, Aquino VH. Expression, purification and virucidal activity of two recombinant isoforms of phospholipase A2 from Crotalus durissus terrificus venom. Arch Virol 2019; 164:1159-1171. [DOI: 10.1007/s00705-019-04172-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Accepted: 01/16/2019] [Indexed: 12/31/2022]
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Affiliation(s)
- Luiz Tadeu Moraes Figueiredo
- Centro de Pesquisa em Virologia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brasil
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Souza WMD, Fumagalli MJ, Torres Carrasco ADO, Romeiro MF, Modha S, Seki MC, Gheller JM, Daffre S, Nunes MRT, Murcia PR, Acrani GO, Figueiredo LTM. Viral diversity of Rhipicephalus microplus parasitizing cattle in southern Brazil. Sci Rep 2018; 8:16315. [PMID: 30397237 PMCID: PMC6218518 DOI: 10.1038/s41598-018-34630-1] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Accepted: 10/22/2018] [Indexed: 12/11/2022] Open
Abstract
Ticks are ectoparasites spread worldwide and are well known as vectors of many viruses of great importance to human and animal health. However, the viral diversity in ticks is still poorly understood, particularly in South America. Here we characterized the viral diversity present in Rhipicephalus microplus parasitizing cattle in the southern region of Brazil using metagenomics. Our study revealed the presence of viruses that had not been previously described in the region, including lihan tick virus (Phenuiviridae family) and wuhan tick virus 2 (Chuviridae family), as well as expands the biogeography of jingmen tick virus (Flaviviridae family) in Brazil. Also, we described three novel tymoviruses (Tymovirales order), named guarapuava tymovirus-like 1 to 3. We described the genomic and phylogenetic characterization of these viruses. Our study sheds light on the viral diversity of Rhipicephalus microplus in South America, and also expands the biogeography of tick viruses that were previously described only in Asia.
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Affiliation(s)
- William Marciel de Souza
- Virology Research Center, School of Medicine of Ribeirão Preto of University of São Paulo, Ribeirão Preto, 14049-900, SP, Brazil. .,MRC-University of Glasgow Centre for Virus Research, Glasgow, G61 1QH, Scotland, United Kingdom.
| | - Marcílio Jorge Fumagalli
- Virology Research Center, School of Medicine of Ribeirão Preto of University of São Paulo, Ribeirão Preto, 14049-900, SP, Brazil
| | | | - Marilia Farignoli Romeiro
- Virology Research Center, School of Medicine of Ribeirão Preto of University of São Paulo, Ribeirão Preto, 14049-900, SP, Brazil
| | - Sejal Modha
- MRC-University of Glasgow Centre for Virus Research, Glasgow, G61 1QH, Scotland, United Kingdom
| | | | | | - Sirlei Daffre
- Laboratório de Bioquímica e Imunologia de Artrópode, Institute of Biomedical Sciences, University of São Paulo, São Paulo, 05508-900, SP, Brazil
| | | | - Pablo Ramiro Murcia
- MRC-University of Glasgow Centre for Virus Research, Glasgow, G61 1QH, Scotland, United Kingdom
| | | | - Luiz Tadeu Moraes Figueiredo
- Virology Research Center, School of Medicine of Ribeirão Preto of University of São Paulo, Ribeirão Preto, 14049-900, SP, Brazil
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Maia FGM, de Souza WM, Sabino-Santos G, Fumagalli MJ, Modha S, Murcia PR, Figueiredo LTM. A novel polyomavirus in sigmodontine rodents from São Paulo State, Brazil. Arch Virol 2018; 163:2913-2915. [PMID: 29931397 DOI: 10.1007/s00705-018-3913-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Accepted: 06/01/2018] [Indexed: 01/17/2023]
Abstract
The nearly complete genome sequence of a novel polyomavirus from blood samples of Akodon montensis and Calomys tener collected in Brazil was determined by high-throughput sequencing. This virus showed a typical polyomaviruses genome organization, and it was classified as a member of the genus Betapolyomavirus. Our results expand the host range and viral diversity of the family Polyomaviridae.
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Affiliation(s)
- Felipe Gonçalves Motta Maia
- Virology Research Center, Ribeirão Preto Medical School, University of São Paulo, Av. Bandeirantes, 3900, Monte Alegre, Ribeirão Preto, São Paulo, 14049-900, Brazil.
- Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil.
| | - William Marciel de Souza
- Virology Research Center, Ribeirão Preto Medical School, University of São Paulo, Av. Bandeirantes, 3900, Monte Alegre, Ribeirão Preto, São Paulo, 14049-900, Brazil.
- MRC-University of Glasgow Centre for Virus Research, Glasgow, UK.
| | - Gilberto Sabino-Santos
- Virology Research Center, Ribeirão Preto Medical School, University of São Paulo, Av. Bandeirantes, 3900, Monte Alegre, Ribeirão Preto, São Paulo, 14049-900, Brazil
| | - Marcílio Jorge Fumagalli
- Virology Research Center, Ribeirão Preto Medical School, University of São Paulo, Av. Bandeirantes, 3900, Monte Alegre, Ribeirão Preto, São Paulo, 14049-900, Brazil
| | - Sejal Modha
- MRC-University of Glasgow Centre for Virus Research, Glasgow, UK
| | | | - Luiz Tadeu Moraes Figueiredo
- Virology Research Center, Ribeirão Preto Medical School, University of São Paulo, Av. Bandeirantes, 3900, Monte Alegre, Ribeirão Preto, São Paulo, 14049-900, Brazil
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Amaral CD, Costa GB, de Souza WM, Alves PA, Borges IA, Tolardo AL, Romeiro MF, Drumond BP, Abrahão JS, Kroon EG, Paglia AP, Figueiredo LTM, de Souza Trindade G. Silent Orthohantavirus Circulation Among Humans and Small Mammals from Central Minas Gerais, Brazil. Ecohealth 2018; 15:577-589. [PMID: 30105563 DOI: 10.1007/s10393-018-1353-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2018] [Revised: 05/17/2018] [Accepted: 06/16/2018] [Indexed: 06/08/2023]
Abstract
New World orthohantaviruses are emerging RNA viruses that cause hantavirus cardiopulmonary syndrome (HCPS). These viruses are a burden to public health around the world with a lethality rate of around 60%. In South America, rodents of Sigmodontinae subfamily are the main reservoirs of orthohantaviruses. We described a serosurvey for orthohantaviruses circulation in an apparently healthy human population and small mammals from rural areas in Central Minas Gerais State, Brazil. A total of 240 individuals and 50 small mammals (26 rodents belonging to 10 different species and 24 marsupials from 4 different species) were sampled during 2012-2013. The seroprevalence rates of IgG/IgM antibodies in humans were 7.1 and 1.6%, respectively. Only one rodent, an Oligoryzomys nigripes captured in peridomestic area, tested positive for IgG antibodies and viral RNA. Our findings suggest a silent circulation of orthohantaviruses in a region of intensive agriculture production. The detection of seropositive humans in an area with a lack of previous HCPS reports highlights potential oligosymptomatic cases and the need for surveillance strategies that could reduce the risk of future outbreaks.
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Affiliation(s)
- Carolina Dourado Amaral
- Laboratório de Vírus, Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Avenida Presidente Antônio Carlos, 6627 - Campus Pampulha, Belo Horizonte, Minas Gerais, 31270-901, Brazil
| | - Galileu Barbosa Costa
- Laboratório de Vírus, Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Avenida Presidente Antônio Carlos, 6627 - Campus Pampulha, Belo Horizonte, Minas Gerais, 31270-901, Brazil.
| | - William Marciel de Souza
- Centro de Pesquisa em Virologia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, São Paulo, Brazil
| | - Pedro Augusto Alves
- Laboratório de Imunologia das Doenças Virais, Instituto René Rachou, Fiocruz, Minas Gerais, Brazil
| | - Iara Apolinário Borges
- Laboratório de Vírus, Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Avenida Presidente Antônio Carlos, 6627 - Campus Pampulha, Belo Horizonte, Minas Gerais, 31270-901, Brazil
| | - Aline Lavado Tolardo
- Centro de Pesquisa em Virologia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, São Paulo, Brazil
| | - Marília Farignoli Romeiro
- Centro de Pesquisa em Virologia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, São Paulo, Brazil
| | - Betânia Paiva Drumond
- Laboratório de Vírus, Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Avenida Presidente Antônio Carlos, 6627 - Campus Pampulha, Belo Horizonte, Minas Gerais, 31270-901, Brazil
| | - Jônatas Santos Abrahão
- Laboratório de Vírus, Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Avenida Presidente Antônio Carlos, 6627 - Campus Pampulha, Belo Horizonte, Minas Gerais, 31270-901, Brazil
| | - Erna Geessien Kroon
- Laboratório de Vírus, Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Avenida Presidente Antônio Carlos, 6627 - Campus Pampulha, Belo Horizonte, Minas Gerais, 31270-901, Brazil
| | - Adriano Pereira Paglia
- Laboratório de Ecologia e Conservação, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Luiz Tadeu Moraes Figueiredo
- Centro de Pesquisa em Virologia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, São Paulo, Brazil
| | - Giliane de Souza Trindade
- Laboratório de Vírus, Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Avenida Presidente Antônio Carlos, 6627 - Campus Pampulha, Belo Horizonte, Minas Gerais, 31270-901, Brazil.
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Fumagalli MJ, de Souza WM, Espósito DLA, Silva A, Romeiro MF, Martinez EZ, da Fonseca BAL, Figueiredo LTM. Enzyme-linked immunosorbent assay using recombinant envelope protein 2 antigen for diagnosis of Chikungunya virus. Virol J 2018; 15:112. [PMID: 30041676 PMCID: PMC6056935 DOI: 10.1186/s12985-018-1028-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Accepted: 07/17/2018] [Indexed: 12/19/2022] Open
Abstract
Background Chikungunya (CHIKV) virus is an important mosquito-borne virus causing outbreaks of acute febrile illness with arthropathy. The detection of specific antibodies against CHIKV is used for diagnosis after the acute viremic phase of the disease. However, a major challenge for serologic diagnosis of CHIKV and other alphaviruses is the cross-reactivity of antibodies to common antigens among these viruses. In the present study, we have developed an enzyme-linked immunosorbend assay using a recombinant envelope protein 2 of CHIKV produced in Escherichia coli system, as a capture antigen. Results High titers (1600 to 12,800) of anti-CHIKV antibodies were detected in human sera analyzed by the CHIKV assay, suggesting it may detect low levels of the antibodies presence. On the other side, cross-reactivity was not observed in mouse hyperimmune sera to Mayaro virus and other alphaviruses analyzed by the CHIKV immunosorbend assay, suggesting it is a CHIKV-specific test. Fifty-nine human serum samples of CHIKV infection suspected cases were tested for immunoglobulin G (IgG) and M (IgM) antibodies detection using the CHIKV immunosorbend assay. A total of 44% (26/59) of samples were positive for IgG to CHIKV, determining 89.66% sensitivity and 100% specificity when the assay is compared to a CHIKV-specific neutralization assay. In addition, 40.6% (24/59) of samples were positive for IgM, determining 92.48% sensitivity and 79.04% specificity by a Bayesian method in the absence of a gold standard. Moreover, CHIKV immunosorbend assay showed similar sensibilities to a commercial immunochromatography assay (Lumiquick, USA) for CHIKV IgG and IgM detection. Conclusion In short, we have developed a rapid, simple, specific and sensitive CHIKV immunosorbend assay for IgG and IgM detection and our results showed potential applicability on the diagnosis of infections by this virus. Electronic supplementary material The online version of this article (10.1186/s12985-018-1028-1) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Marcílio Jorge Fumagalli
- Virology Research Center, Ribeirão Preto Medical School of University of São Paulo, Ribeirão Preto, São Paulo, Brazil.
| | - William Marciel de Souza
- Virology Research Center, Ribeirão Preto Medical School of University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Danillo Lucas Alves Espósito
- Virology Research Center, Ribeirão Preto Medical School of University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Angélica Silva
- Virology Research Center, Ribeirão Preto Medical School of University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Marilia Farignoli Romeiro
- Virology Research Center, Ribeirão Preto Medical School of University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Edson Zangiacomi Martinez
- Social Medicine, Ribeirão Preto Medical School of University of São Paulo, Ribeirao Preto, São Paulo, Brazil
| | | | - Luiz Tadeu Moraes Figueiredo
- Virology Research Center, Ribeirão Preto Medical School of University of São Paulo, Ribeirão Preto, São Paulo, Brazil
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Sabino-Santos G, Maia FGM, Martins RB, Gagliardi TB, Souza WMD, Muylaert RL, Luna LKDS, Melo DM, Cardoso RDS, Barbosa NDS, Pontelli MC, Mamani-Zapana PR, Vieira TM, Melo NM, Jonsson CB, Goodin D, Salazar-Bravo J, daSilva LLP, Arruda E, Figueiredo LTM. Natural infection of Neotropical bats with hantavirus in Brazil. Sci Rep 2018; 8:9018. [PMID: 29899544 PMCID: PMC5998146 DOI: 10.1038/s41598-018-27442-w] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2018] [Accepted: 05/18/2018] [Indexed: 01/08/2023] Open
Abstract
Bats (Order: Chiroptera) harbor a high diversity of emerging pathogens presumably because their ability to fly and social behavior favor the maintenance, evolution, and dissemination of these pathogens. Until 2012, there was only one report of the presence of Hantavirus in bats. Historically, it was thought that these viruses were harbored primarily by rodent and insectivore small mammals. Recently, new species of hantaviruses have been identified in bats from Africa and Asia continents expanding the potential reservoirs and range of these viruses. To assess the potential of Neotropical bats as hosts for hantaviruses and its transmission dynamics in nature, we tested 53 bats for active hantaviral infection from specimens collected in Southeastern Brazil. Part of the hantaviral S segment was amplified from the frugivorous Carollia perspicillata and the common vampire bat Desmodus rotundus. DNA sequencing showed high similarity with the genome of Araraquara orthohantavirus (ARQV), which belongs to one of the more lethal hantavirus clades (Andes orthohantavirus). ARQV-like infection was detected in the blood, urine, and organs of D. rotundus. Therefore, we describe a systemic infection in Neotropical bats by a human pathogenic Hantavirus. We also propose here a schematic transmission dynamics of hantavirus in the study region. Our results give insights to new, under-appreciated questions that need to be addressed in future studies to clarify hantavirus transmission in nature and avoid hantavirus outbreaks.
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Affiliation(s)
- Gilberto Sabino-Santos
- Center for Virology Research, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil.
| | - Felipe Gonçalves Motta Maia
- Center for Virology Research, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
- Department of Microbiology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Ronaldo Bragança Martins
- Center for Virology Research, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Talita Bianca Gagliardi
- Center for Virology Research, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - William Marciel de Souza
- Center for Virology Research, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | | | | | - Danilo Machado Melo
- Center for Virology Research, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Ricardo de Souza Cardoso
- Center for Virology Research, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Natalia da Silva Barbosa
- Department of Cell and Molecular Biology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Marjorie Cornejo Pontelli
- Center for Virology Research, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | | | - Thallyta Maria Vieira
- Department of Biological Sciences, State University of Montes Claros, Montes Claros, Minas Gerais, Brazil
| | - Norma Maria Melo
- Department of Parasitology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Colleen B Jonsson
- Department of Microbiology, National Institute for Mathematical and Biological Synthesis, Knoxville, Tennessee, USA
| | - Douglas Goodin
- Department of Geography, Kansas State University, Manhattan, Kansas, USA
| | - Jorge Salazar-Bravo
- Department of Biological Sciences, Texas Tech University, Lubbock, Texas, USA
| | - Luis Lamberti Pinto daSilva
- Department of Cell and Molecular Biology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Eurico Arruda
- Center for Virology Research, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
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Amarilla AA, Fumagalli MJ, Figueiredo ML, Lima-Junior DS, Santos-Junior NN, Alfonso HL, Lippi V, Trabuco AC, Lauretti F, Muller VD, Colón DF, Luiz JPM, Suhrbier A, Setoh YX, Khromykh AA, Figueiredo LTM, Aquino VH. Ilheus and Saint Louis encephalitis viruses elicit cross-protection against a lethal Rocio virus challenge in mice. PLoS One 2018; 13:e0199071. [PMID: 29897990 PMCID: PMC5999289 DOI: 10.1371/journal.pone.0199071] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Accepted: 05/29/2018] [Indexed: 11/30/2022] Open
Abstract
Rocio virus (ROCV) was the causative agent of an unprecedented outbreak of encephalitis during the 1970s in the Vale do Ribeira, Sao Paulo State, in the Southeast region of Brazil. Surprisingly, no further cases of ROCV infection were identified after this outbreak; however, serological surveys have suggested the circulation of ROCV among humans and animals in different regions of Brazil. Cross-protective immunity among flaviviruses is well documented; consequently, immunity induced by infections with other flaviviruses endemic to Brazil could potentially be responsible for the lack of ROCV infections. Herein, we evaluated the cross-protection mediated by other flaviviruses against ROCV infection using an experimental C57BL/6 mouse model. Cross-protection against ROCV infection was observed when animals had prior exposure to Ilheus virus or Saint Louis encephalitis virus, suggesting that cross-reactive anti-flavivirus antibodies may limit ROCV disease outbreaks.
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Affiliation(s)
- Alberto Anastacio Amarilla
- Laboratory of Virology, Department of Clinical Analyses, Toxicology and Food Sciences, Faculty of Pharmaceutical Sciences of Ribeirao Preto, University of Sao Paulo, Ribeirao Preto, Sao Paulo, Brazil
| | - Marcilio Jorge Fumagalli
- Virology Research Center, Ribeirao Preto Medical School, University of São Paulo, Ribeirao Preto, São Paulo, Brazil
| | - Mario Luis Figueiredo
- Laboratory of Virology, Department of Clinical Analyses, Toxicology and Food Sciences, Faculty of Pharmaceutical Sciences of Ribeirao Preto, University of Sao Paulo, Ribeirao Preto, Sao Paulo, Brazil
| | - Djalma S. Lima-Junior
- Department of Biochemistry and Immunology, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, SP, Brazil
| | - Nilton Nascimento Santos-Junior
- Department of Neurosciences and Behavioral Sciences, Ribeirao Preto Medical School, University of São Paulo, Ribeirao Preto, Brazil
| | - Helda Liz Alfonso
- Laboratory of Virology, Department of Clinical Analyses, Toxicology and Food Sciences, Faculty of Pharmaceutical Sciences of Ribeirao Preto, University of Sao Paulo, Ribeirao Preto, Sao Paulo, Brazil
| | - Veronica Lippi
- Laboratory of Virology, Department of Clinical Analyses, Toxicology and Food Sciences, Faculty of Pharmaceutical Sciences of Ribeirao Preto, University of Sao Paulo, Ribeirao Preto, Sao Paulo, Brazil
| | - Amanda Cristina Trabuco
- Laboratory of Virology, Department of Clinical Analyses, Toxicology and Food Sciences, Faculty of Pharmaceutical Sciences of Ribeirao Preto, University of Sao Paulo, Ribeirao Preto, Sao Paulo, Brazil
| | - Flavio Lauretti
- Virology Research Center, Ribeirao Preto Medical School, University of São Paulo, Ribeirao Preto, São Paulo, Brazil
| | - Vanessa Danielle Muller
- Laboratory of Virology, Department of Clinical Analyses, Toxicology and Food Sciences, Faculty of Pharmaceutical Sciences of Ribeirao Preto, University of Sao Paulo, Ribeirao Preto, Sao Paulo, Brazil
| | - David F. Colón
- Laboratory of Inflammation and Pain, Department of Immunology, Ribeirao Preto Medical School, University of São Paulo, Ribeirao Preto, Sao Paulo, Brazil
| | - João P. M. Luiz
- Laboratory of Inflammation and Pain, Department of Immunology, Ribeirao Preto Medical School, University of São Paulo, Ribeirao Preto, Sao Paulo, Brazil
| | - Andreas Suhrbier
- Australian Infectious Diseases Research Centre, School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, Australia
- QIMR Berghofer Medical Research Institute, Brisbane, Australia
| | - Yin Xiang Setoh
- Australian Infectious Diseases Research Centre, School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, Australia
| | - Alexander A. Khromykh
- Australian Infectious Diseases Research Centre, School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, Australia
| | - Luiz Tadeu Moraes Figueiredo
- Virology Research Center, Ribeirao Preto Medical School, University of São Paulo, Ribeirao Preto, São Paulo, Brazil
| | - Victor Hugo Aquino
- Laboratory of Virology, Department of Clinical Analyses, Toxicology and Food Sciences, Faculty of Pharmaceutical Sciences of Ribeirao Preto, University of Sao Paulo, Ribeirao Preto, Sao Paulo, Brazil
- * E-mail:
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de Souza WM, Romeiro MF, Sabino-Santos G, Maia FGM, Fumagalli MJ, Modha S, Nunes MRT, Murcia PR, Figueiredo LTM. Novel orthohepeviruses in wild rodents from São Paulo State, Brazil. Virology 2018; 519:12-16. [PMID: 29627586 PMCID: PMC5998382 DOI: 10.1016/j.virol.2018.03.025] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2017] [Revised: 03/26/2018] [Accepted: 03/28/2018] [Indexed: 12/29/2022]
Abstract
The Hepeviridae comprise single-stranded positive-sense RNA viruses classified into two genera, Orthohepevirus and Piscihepevirus. Orthohepeviruses have a wide host range that includes rodents, but previous studies had been restricted to rodents of the Muridae family. In this study, we applied a high-throughput sequencing approach to examine the presence of orthohepeviruses in rodents from São Paulo State, Brazil. We also used RT-PCR to determine the frequency of orthohepeviruses in our sampled population. We identified novel orthohepeviruses in blood samples derived from Necromys lasiurus (1.19%) and Calomys tener (3.66%). Therefore, our results expand the host range and viral diversity of the Hepeviridae family.
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Affiliation(s)
- William Marciel de Souza
- Virology Research Center, Ribeirão Preto Medical School, University of São Paulo, Av. Bandeirantes, 3900, Monte Alegre, 14049-900 Ribeirão Preto, SP, Brazil; MRC-University of Glasgow Centre for Virus Research, Glasgow, United Kingdom.
| | - Marilia Farignoli Romeiro
- Virology Research Center, Ribeirão Preto Medical School, University of São Paulo, Av. Bandeirantes, 3900, Monte Alegre, 14049-900 Ribeirão Preto, SP, Brazil
| | - Gilberto Sabino-Santos
- Virology Research Center, Ribeirão Preto Medical School, University of São Paulo, Av. Bandeirantes, 3900, Monte Alegre, 14049-900 Ribeirão Preto, SP, Brazil
| | - Felipe Gonçalves Motta Maia
- Virology Research Center, Ribeirão Preto Medical School, University of São Paulo, Av. Bandeirantes, 3900, Monte Alegre, 14049-900 Ribeirão Preto, SP, Brazil; Laboratory Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Marcilio Jorge Fumagalli
- Virology Research Center, Ribeirão Preto Medical School, University of São Paulo, Av. Bandeirantes, 3900, Monte Alegre, 14049-900 Ribeirão Preto, SP, Brazil
| | - Sejal Modha
- MRC-University of Glasgow Centre for Virus Research, Glasgow, United Kingdom
| | | | - Pablo Ramiro Murcia
- MRC-University of Glasgow Centre for Virus Research, Glasgow, United Kingdom
| | - Luiz Tadeu Moraes Figueiredo
- Virology Research Center, Ribeirão Preto Medical School, University of São Paulo, Av. Bandeirantes, 3900, Monte Alegre, 14049-900 Ribeirão Preto, SP, Brazil
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Nunes MRT, de Souza WM, Acrani GO, Cardoso JF, da Silva SP, Badra SJ, Figueiredo LTM, Vasconcelos PFDC. Revalidation and genetic characterization of new members of Group C (Orthobunyavirus genus, Peribunyaviridae family) isolated in the Americas. PLoS One 2018; 13:e0197294. [PMID: 29795585 PMCID: PMC5967719 DOI: 10.1371/journal.pone.0197294] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2017] [Accepted: 04/30/2018] [Indexed: 01/06/2023] Open
Abstract
Group C serogroup includes members of the Orthobunyavirus genus (family Peribunyaviridae) and comprises 15 arboviruses that can be associated with febrile illness in humans. Although previous studies described the genome characterization of Group C orthobunyavirus, there is a gap in genomic information about the other viruses in this group. Therefore, in this study, complete genomes of members of Group C serogroup were sequenced or re-sequenced and used for genetic characterization, as well as to understand their phylogenetic and evolutionary aspects. Thus, our study reported the genomes of three new members in Group C virus (Apeu strain BeAn848, Itaqui strain BeAn12797 and Nepuyo strain BeAn10709), as well as re-sequencing of original strains of five members: Caraparu (strain BeAn3994), Madrid (strain BT4075), Murucutu (strain BeAn974), Oriboca (strain BeAn17), and Marituba (strain BeAn15). These viruses presented a typical genomic organization related to members of the Orthobunyavirus genus. Interestingly, all viruses of this serogroup showed an open reading frame (ORF) that encodes the putative nonstructural NSs protein that precedes the nucleoprotein ORF, an unprecedented fact in Group C virus. Also, we confirmed the presence of natural reassortment events. This study expands the genomic information of Group C viruses, as well as revalidates the genomic organization of viruses that were previously reported.
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Affiliation(s)
- Márcio Roberto Teixeira Nunes
- Center for Technological Innovation, Evandro Chagas Institute, Ministry of Health, Ananindeua, Pará, Brazil
- Department of Pathology, University of Texas Medical Branch, Galveston, Texas, United States of America
- * E-mail: (MRT); (PFCV)
| | - William Marciel de Souza
- Virology Research Center, School of Medicine of Ribeirão Preto of University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | | | - Jedson Ferreira Cardoso
- Center for Technological Innovation, Evandro Chagas Institute, Ministry of Health, Ananindeua, Pará, Brazil
| | - Sandro Patroca da Silva
- Center for Technological Innovation, Evandro Chagas Institute, Ministry of Health, Ananindeua, Pará, Brazil
| | - Soraya Jabur Badra
- Virology Research Center, School of Medicine of Ribeirão Preto of University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Luiz Tadeu Moraes Figueiredo
- Virology Research Center, School of Medicine of Ribeirão Preto of University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Pedro Fernando da Costa Vasconcelos
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Ministry of Health, Ananindeua, Pará, Brazil
- * E-mail: (MRT); (PFCV)
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Barreira LAC, Scheucher PS, Romeiro MF, Serra LL, Badra SJ, Souza WMD, Figueiredo LTM. Evaluating the use of fluorescence-based flow cytometry assay for dengue diagnosis using peripheral blood mononuclear cells. Rev Soc Bras Med Trop 2018; 51:168-173. [PMID: 29768549 DOI: 10.1590/0037-8682-0404-2017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2017] [Accepted: 03/20/2018] [Indexed: 11/21/2022] Open
Abstract
INTRODUCTION Dengue virus (DENV) is the most important arthropod-borne viral disease worldwide with an estimated 50 million infections occurring each year. METHODS In this study, we present a flow cytometry assay (FACS) for diagnosing DENV, and compare its results with those of the non-structural protein 1 (NS1) immunochromatographic assay and reverse transcriptase polymerase chain reaction (RT-PCR). RESULTS All three assays identified 29.1% (39/134) of the patients as dengue-positive. The FACS approach and real-time RT-PCR detected the DENV in 39 and 44 samples, respectively. On the other hand, the immunochromatographic assay detected the NS1 protein in 40.1% (56/134) of the patients. The Cohen's kappa coefficient analysis revealed a substantial agreement among the three methods. CONCLUSIONS The FACS approach may be a useful alternative for dengue diagnosis and can be implemented in public and private laboratories.
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Affiliation(s)
- Luzia Aparecida Costa Barreira
- Centro de Pesquisa em Virologia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brasil
| | - Priscila Santos Scheucher
- Laboratório de Hematologia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brasil
| | - Marilia Farignoli Romeiro
- Centro de Pesquisa em Virologia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brasil
| | - Leonardo La Serra
- Centro de Pesquisa em Virologia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brasil
| | - Soraya Jabur Badra
- Centro de Pesquisa em Virologia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brasil
| | - William Marciel de Souza
- Centro de Pesquisa em Virologia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brasil
| | - Luiz Tadeu Moraes Figueiredo
- Centro de Pesquisa em Virologia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brasil
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de Souza WM, Dennis T, Fumagalli MJ, Araujo J, Sabino-Santos G, Maia FGM, Acrani GO, Carrasco ADOT, Romeiro MF, Modha S, Vieira LC, Ometto T, Queiroz LH, Durigon EL, Nunes MRT, Figueiredo LTM, Gifford RJ. Novel Parvoviruses from Wild and Domestic Animals in Brazil Provide New Insights into Parvovirus Distribution and Diversity. Viruses 2018; 10:E143. [PMID: 29565808 PMCID: PMC5923437 DOI: 10.3390/v10040143] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Revised: 03/17/2018] [Accepted: 03/20/2018] [Indexed: 12/11/2022] Open
Abstract
Parvoviruses (family Parvoviridae) are small, single-stranded DNA viruses. Many parvoviral pathogens of medical, veterinary and ecological importance have been identified. In this study, we used high-throughput sequencing (HTS) to investigate the diversity of parvoviruses infecting wild and domestic animals in Brazil. We identified 21 parvovirus sequences (including twelve nearly complete genomes and nine partial genomes) in samples derived from rodents, bats, opossums, birds and cattle in Pernambuco, São Paulo, Paraná and Rio Grande do Sul states. These sequences were investigated using phylogenetic and distance-based approaches and were thereby classified into eight parvovirus species (six of which have not been described previously), representing six distinct genera in the subfamily Parvovirinae. Our findings extend the known biogeographic range of previously characterized parvovirus species and the known host range of three parvovirus genera (Dependovirus, Aveparvovirus and Tetraparvovirus). Moreover, our investigation provides a window into the ecological dynamics of parvovirus infections in vertebrates, revealing that many parvovirus genera contain well-defined sub-lineages that circulate widely throughout the world within particular taxonomic groups of hosts.
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Affiliation(s)
- William Marciel de Souza
- Virology Research Center, Ribeirão Preto Medical School, University of São Paulo,14049-900 Ribeirão Preto, SP, Brazil.
- MRC-University of Glasgow Centre for Virus Research, Glasgow G61 1QH, UK.
| | - Tristan Dennis
- MRC-University of Glasgow Centre for Virus Research, Glasgow G61 1QH, UK.
| | - Marcílio Jorge Fumagalli
- Virology Research Center, Ribeirão Preto Medical School, University of São Paulo,14049-900 Ribeirão Preto, SP, Brazil.
| | - Jansen Araujo
- Institute of Biomedical Sciences, University of São Paulo, 05508-900 São Paulo, SP, Brazil.
| | - Gilberto Sabino-Santos
- Virology Research Center, Ribeirão Preto Medical School, University of São Paulo,14049-900 Ribeirão Preto, SP, Brazil.
| | - Felipe Gonçalves Motta Maia
- Virology Research Center, Ribeirão Preto Medical School, University of São Paulo,14049-900 Ribeirão Preto, SP, Brazil.
- Institute of Biomedical Sciences, University of São Paulo, 05508-900 São Paulo, SP, Brazil.
| | | | | | - Marilia Farignoli Romeiro
- Virology Research Center, Ribeirão Preto Medical School, University of São Paulo,14049-900 Ribeirão Preto, SP, Brazil.
| | - Sejal Modha
- MRC-University of Glasgow Centre for Virus Research, Glasgow G61 1QH, UK.
| | - Luiz Carlos Vieira
- Virology Research Center, Ribeirão Preto Medical School, University of São Paulo,14049-900 Ribeirão Preto, SP, Brazil.
| | - Tatiana Ometto
- Institute of Biomedical Sciences, University of São Paulo, 05508-900 São Paulo, SP, Brazil.
| | - Luzia Helena Queiroz
- Faculty of Veterinary Medicine, São Paulo State University, Araçatuba, SP 16050-680, Brazil.
| | - Edison Luiz Durigon
- Institute of Biomedical Sciences, University of São Paulo, 05508-900 São Paulo, SP, Brazil.
| | - Márcio Roberto Teixeira Nunes
- Center for Technological Innovations, Evandro Chagas Institute, Ministry of Health, Ananindeua, Pará 67030-000, Pará, Brazil.
| | - Luiz Tadeu Moraes Figueiredo
- Virology Research Center, Ribeirão Preto Medical School, University of São Paulo,14049-900 Ribeirão Preto, SP, Brazil.
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Affiliation(s)
- Pedro V Schwartzmann
- Cardiology Centre, Internal Medicine Department, Medical School of RibeirãoPreto, University of Sao Paulo, Sao Paulo, Brazil
| | - Marcus Vinicius Simões
- Cardiology Centre, Internal Medicine Department, Medical School of RibeirãoPreto, University of Sao Paulo, Sao Paulo, Brazil
| | - Luiz Tadeu Moraes Figueiredo
- Cardiology Centre, Internal Medicine Department, Medical School of RibeirãoPreto, University of Sao Paulo, Sao Paulo, Brazil
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de Melo AB, de Souza WM, Acrani GO, Carvalho VL, Romeiro MF, Tolardo AL, da Silva SP, Cardoso JF, de Oliveira Chiang J, da Silva Gonçalves Vianez JL, do Socorro da Silva Azevedo R, Figueiredo LTM, da Costa Vasconcelos PF, Nunes MRT, de Almeida Medeiros DB. Genomic characterization and evolution of Tacaiuma orthobunyavirus (Peribunyaviridae family) isolated in Brazil. Infect Genet Evol 2018; 60:71-76. [PMID: 29476812 DOI: 10.1016/j.meegid.2018.02.027] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2017] [Revised: 02/02/2018] [Accepted: 02/18/2018] [Indexed: 11/25/2022]
Abstract
Tacaiuma virus (TCMV) is antigenically characterized as a member of the Anopheles A complex in the Orthobunyavirus genus, Peribunyaviridae family (Bunyavirales order). Clinically, the TCMV infection is characterized by acute febrile illness with myalgia and arthralgia lasting three to five days. However, the genomic and evolutionary aspect of this virus has not been elucidated. In this study, we described the complete coding sequences of three segments of two TCMV strains isolated in Brazil and three complete coding sequences of the small segment of three TCMV strains. All the strains sequenced in this study showed the typical genomic organization of orthobunyaviruses that infect vertebrates, except for the absence of the open reading frame that encodes the well-described non-structural small protein. This study presents the genomic and evolutionary characterization of TCMV strains and would be helpful for diagnostic purposes and epidemiology.
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Affiliation(s)
- Aristides Bezerra de Melo
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Ministry of Health, Ananindeua, Pará, Brazil
| | - William Marciel de Souza
- Virology Research Center, School of Medicine of Ribeirão Preto of University of São Paulo, Ribeirão Preto, SP, Brazil.
| | | | - Valéria Lima Carvalho
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Ministry of Health, Ananindeua, Pará, Brazil
| | - Marilia Farignoli Romeiro
- Virology Research Center, School of Medicine of Ribeirão Preto of University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Aline Lavado Tolardo
- Virology Research Center, School of Medicine of Ribeirão Preto of University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Sandro Patroca da Silva
- Center for Technological Innovations, Evandro Chagas Institute, Ministry of Health, Ananindeua, Pará, Brazil
| | - Jedson Ferreira Cardoso
- Center for Technological Innovations, Evandro Chagas Institute, Ministry of Health, Ananindeua, Pará, Brazil
| | - Jannifer de Oliveira Chiang
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Ministry of Health, Ananindeua, Pará, Brazil
| | | | | | - Luiz Tadeu Moraes Figueiredo
- Virology Research Center, School of Medicine of Ribeirão Preto of University of São Paulo, Ribeirão Preto, SP, Brazil
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Santos-Júnior JAD, Santos FMD, Barros PA, Medeiros NPT, Sabino-Santos Júnior G, Lima MCD, Figueiredo LTM, Borges AA. First serologic evidence of human hantavirus infection in Alagoas State in Northeastern Brazil. Rev Soc Bras Med Trop 2018; 50:819-823. [PMID: 29340460 DOI: 10.1590/0037-8682-0117-2017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2017] [Accepted: 08/24/2017] [Indexed: 11/21/2022] Open
Abstract
INTRODUCTION Hantavirus cardiopulmonary syndrome (HCPS) is rare in Northeastern Brazil. METHODS Prospective surveillance was conducted over a two-year period in Alagoas State, Northeastern Brazil. The prevalence of anti-hantavirus N-antigen IgM and IgG in human serum samples was determined by enzyme-linked immunosorbent assay testing. RESULTS High avidity IgG was found in nine of 476 serum samples tested (from 102 patients with clinical manifestations compatible with HCPS, 124 patients with leptospirosis, and 250 healthy rural workers). CONCLUSIONS Serologic evidence of past hantavirus infection in residents of Alagoas State indicates that hantaviruses are present in northeastern Brazil, even in areas silent for HCPS.
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Affiliation(s)
- José Alfredo Dos Santos-Júnior
- Laboratório de Pesquisas em Virologia e Imunologia, Instituto de Ciências Biológicas e da Saúde, Universidade Federal Alagoas, Maceió, AL, Brasil
| | - Flávio Martins Dos Santos
- Laboratório de Pesquisas em Virologia e Imunologia, Instituto de Ciências Biológicas e da Saúde, Universidade Federal Alagoas, Maceió, AL, Brasil
| | - Patrícia Alves Barros
- Laboratório de Pesquisas em Virologia e Imunologia, Instituto de Ciências Biológicas e da Saúde, Universidade Federal Alagoas, Maceió, AL, Brasil
| | - Nedja Poliane Torres Medeiros
- Laboratório de Pesquisas em Virologia e Imunologia, Instituto de Ciências Biológicas e da Saúde, Universidade Federal Alagoas, Maceió, AL, Brasil
| | - Gilberto Sabino-Santos Júnior
- Centro de Pesquisa em Virologia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brasil
| | | | - Luiz Tadeu Moraes Figueiredo
- Centro de Pesquisa em Virologia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brasil
| | - Alessandra Abel Borges
- Laboratório de Pesquisas em Virologia e Imunologia, Instituto de Ciências Biológicas e da Saúde, Universidade Federal Alagoas, Maceió, AL, Brasil
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de Souza WM, Fumagalli MJ, de Araujo J, Sabino-Santos G, Maia FGM, Romeiro MF, Modha S, Nardi MS, Queiroz LH, Durigon EL, Nunes MRT, Murcia PR, Figueiredo LTM. Discovery of novel anelloviruses in small mammals expands the host range and diversity of the Anelloviridae. Virology 2017; 514:9-17. [PMID: 29128758 DOI: 10.1016/j.virol.2017.11.001] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2017] [Revised: 10/26/2017] [Accepted: 11/01/2017] [Indexed: 10/18/2022]
Abstract
The Anelloviridae comprises single-stranded DNA viruses currently grouped in sixty-eight species classified in twelve genera. They have been found in many vertebrate hosts including primates. In this study, we describe the application of the high-throughput sequencing to examine the frequency and diversity of anelloviruses in rodents, bats and opossums captured in São Paulo State, Brazil. We report a total of twenty-six anelloviruses with sixteen nearly complete genomes and ten partial genomes, which include eleven potential novel species identified in rodents (Cricetidae), bats (Molossidae and Phyllostomidae), and opossums (Didelphidae). We also propose the inclusion of two potential new genera within the Anelloviridae family, provisionally named Omegatorquevirus and Sigmatorquevirus, including six and three novel species of anelloviruses, respectively. In summary, this study expands the diversity and the host range of the known anelloviruses.
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Affiliation(s)
- William Marciel de Souza
- Virology Research Center, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil; MRC-University of Glasgow Centre for Virus Research, Glasgow, United Kingdom.
| | - Marcílio Jorge Fumagalli
- Virology Research Center, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Jansen de Araujo
- Laboratory Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Gilberto Sabino-Santos
- Virology Research Center, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Felipe Gonçalves Motta Maia
- Virology Research Center, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil; Department of Microbiology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Marilia Farignoli Romeiro
- Virology Research Center, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Sejal Modha
- MRC-University of Glasgow Centre for Virus Research, Glasgow, United Kingdom
| | - Marcello Schiavo Nardi
- Divisão Técnica de Medicina Veterinária e Manejo da Fauna Silvestre, Prefeitura de São Paulo, Brazil
| | | | - Edison Luiz Durigon
- Laboratory Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Márcio Roberto Teixeira Nunes
- Center for Technological Innovations, Evandro Chagas Institute, Ministry of Health, Ananindeua, Pará, Brazil; Department of Pathology, University of Texas Medical Branch, Galveston, TX, USA
| | - Pablo Ramiro Murcia
- MRC-University of Glasgow Centre for Virus Research, Glasgow, United Kingdom
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Figueiredo MLGD, Amarilla AA, Figueiredo GGD, Alfonso HL, Lippi V, Maia FGM, Morais FA, Costa CAD, Henriques DA, Durigon EL, Figueiredo LTM, Aquino VH. Cacipacore virus as an emergent mosquito-borne Flavivirus. Rev Soc Bras Med Trop 2017; 50:539-542. [PMID: 28954077 DOI: 10.1590/0037-8682-0485-2016] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2016] [Accepted: 03/28/2017] [Indexed: 01/13/2023] Open
Abstract
INTRODUCTION: Cacipacore virus (CPCV), a possible bird-associated flavivirus, has yet to be detected in mosquitoes. Our purpose is examining CPCV in mosquitoes from the Amazon region of Brazil. METHODS: Approximately 3,253 Culicidae (grouped into 264 pools) were collected from the Amazon region during 2002-2006 and analyzed using a Flavivirus genus-specific reverse transcription- polymerase chain reaction followed by nested polymerase chain reaction assay and by nucleotide sequencing of amplicons. RESULTS: Nucleotide sequences from five mosquito samples showed high similarity to the those of CPCV originally isolated in the Amazon region. CONCLUSIONS: This is the first report of CPCV-infected mosquitoes which has implications on the arbovirus maintenance in nature and transmission to man.
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Affiliation(s)
- Mario Luis Garcia de Figueiredo
- Laboratório de Virologia, Departamento de Análises Clínicas, Toxicológicas e Bromatológicas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brasil.,Departamento de Microbiologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, SP, Brasil
| | - Alberto Anastacio Amarilla
- Laboratório de Virologia, Departamento de Análises Clínicas, Toxicológicas e Bromatológicas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brasil
| | - Glauciane Garcia de Figueiredo
- Laboratório de Virologia, Departamento de Análises Clínicas, Toxicológicas e Bromatológicas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brasil
| | - Helda Liz Alfonso
- Laboratório de Virologia, Departamento de Análises Clínicas, Toxicológicas e Bromatológicas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brasil
| | - Veronica Lippi
- Laboratório de Virologia, Departamento de Análises Clínicas, Toxicológicas e Bromatológicas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brasil
| | - Felipe Gonçalves Motta Maia
- Centro de Pesquisa em Virologia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brasil
| | - Felipe Alves Morais
- Faculdade de Zootecnia e Engenharia de Alimentos, Universidade de São Paulo, Campus de Pirassununga, Pirassununga, SP, Brasil
| | | | - Dyana Alves Henriques
- Departamento de Microbiologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, SP, Brasil
| | - Edison Luis Durigon
- Departamento de Microbiologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, SP, Brasil
| | - Luiz Tadeu Moraes Figueiredo
- Centro de Pesquisa em Virologia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brasil
| | - Victor Hugo Aquino
- Laboratório de Virologia, Departamento de Análises Clínicas, Toxicológicas e Bromatológicas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brasil
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Figueiredo LTM. Large outbreaks of Chikungunya virus in Brazil reveal uncommon clinical features and fatalities. Rev Soc Bras Med Trop 2017; 50:583-584. [DOI: 10.1590/0037-8682-0397-2017] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2017] [Accepted: 10/09/2017] [Indexed: 11/21/2022] Open
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Schwartzmann PV, Simões MV, Moraes Figueiredo LT. In Reply-Zika Virus Meningoencelphalitis. Mayo Clin Proc 2017; 92:1313-1314. [PMID: 28778267 DOI: 10.1016/j.mayocp.2017.05.018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/17/2017] [Revised: 05/10/2017] [Accepted: 05/23/2017] [Indexed: 11/23/2022]
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Nunes-Neto JP, Souza WMD, Acrani GO, Romeiro MF, Fumagalli M, Vieira LC, Medeiros DBDA, Lima JA, Lima CPSD, Cardoso JF, Figueiredo LTM, Silva SPD, Tesh R, Nunes MRT, Vasconcelos PFDC. Characterization of the Bujaru, frijoles and Tapara antigenic complexes into the sandfly fever group and two unclassified phleboviruses from Brazil. J Gen Virol 2017; 98:585-594. [PMID: 28141497 DOI: 10.1099/jgv.0.000724] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The genus Phlebovirus includes the sandfly fever viruses and tick-transmitted uukuviruses. Sandfly fever group viruses have been isolated from various vertebrate species and from phlebotomines and occasionally alternative arthropods, e.g. mosquitoes, or ceratopogonids of the genus Culicoides. Uukuniemi serogroup viruses have been isolated from various vertebrate species and from ticks. Despite the public health importance of some viruses of the genus, the genomic diversity of phleboviruses that could be incriminated as causative of human or veterinary diseases remains underestimated. Here we describe the nearly complete sequences and genomic characterization of two phleboviruses belonging to the Bujaru antigenic complex: the prototype species and the Munguba virus. Furthermore, six previously unclassified phleboviruses isolated in Brazil were also sequenced and characterized: Ambe, Anhanga, Joa, Uriurana, Urucuri and Tapara viruses. The results of the phylogenetic analysis indicated that these viruses group with viruses of three antigenic complexes (Bujaru, Tapara and frijoles clades), with two unclassified phleboviruses. We also performed genomic reassortment analysis and confirmed that there were no events for the viruses described in this study, but we found a new potential reassortment in Medjerda Valley virus, which contains S and L segments of Arbia virus, and probably a unique M segment, both viruses circulate in the same geographic region, indicating these two isolates represent two distinct viruses. This study provides insights into the genetic diversity, classification and evolution of phleboviruses.
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Affiliation(s)
- Joaquim Pinto Nunes-Neto
- Departamento de Arbovirologia e Febres Hemorrágicas, Instituto Evandro Chagas, Ananindeua, Pará, Brazil
| | - William Marciel de Souza
- Virology Research Center, School of Medicine of Ribeirao Preto of University of São Paulo, Ribeirao Preto, São Paulo, Brazil.,MRC-University of Glasgow Centre for Virus Research, Glasgow, Scotland, UK
| | | | - Marilia Farignoli Romeiro
- Virology Research Center, School of Medicine of Ribeirao Preto of University of São Paulo, Ribeirao Preto, São Paulo, Brazil
| | - MarcílioJorge Fumagalli
- Virology Research Center, School of Medicine of Ribeirao Preto of University of São Paulo, Ribeirao Preto, São Paulo, Brazil
| | - Luiz Carlos Vieira
- Virology Research Center, School of Medicine of Ribeirao Preto of University of São Paulo, Ribeirao Preto, São Paulo, Brazil
| | | | - Juliana Abreu Lima
- Departamento de Arbovirologia e Febres Hemorrágicas, Instituto Evandro Chagas, Ananindeua, Pará, Brazil
| | | | | | - Luiz Tadeu Moraes Figueiredo
- Virology Research Center, School of Medicine of Ribeirao Preto of University of São Paulo, Ribeirao Preto, São Paulo, Brazil
| | | | - Robert Tesh
- Department of Pathology, University of Texas Medical Branch, Galveston Texas, USA
| | - Márcio Roberto Teixeira Nunes
- Departamento de Arbovirologia e Febres Hemorrágicas, Instituto Evandro Chagas, Ananindeua, Pará, Brazil.,Center for Technological Innovation, Instituto Evandro Chagas, Ananindeua, Pará, Brazil.,Department of Pathology, University of Texas Medical Branch, Galveston Texas, USA
| | - Pedro Fernando da Costa Vasconcelos
- Departamento de Arbovirologia e Febres Hemorrágicas, Instituto Evandro Chagas, Ananindeua, Pará, Brazil.,Department of Pathology, Pará State University, Belém, Pará, Brazil
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de Souza WM, Romeiro MF, Fumagalli MJ, Modha S, de Araujo J, Queiroz LH, Durigon EL, Figueiredo LTM, Murcia PR, Gifford RJ. Chapparvoviruses occur in at least three vertebrate classes and have a broad biogeographic distribution. J Gen Virol 2017; 98:225-229. [PMID: 28284244 PMCID: PMC5646239 DOI: 10.1099/jgv.0.000671] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Chapparvoviruses are a highly divergent group of parvoviruses (family Parvoviridae) that have recently been identified via metagenomic sampling of animal faeces. Here, we report the sequences of six novel chapparvoviruses identified through both metagenomic sampling of bat tissues and in silico screening of published vertebrate genome assemblies. The novel chapparvoviruses share several distinctive genomic features and group together as a robustly supported monophyletic clade in phylogenetic trees. Our data indicate that chapparvoviruses have a broad host range in vertebrates and a global distribution.
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Affiliation(s)
- William Marciel de Souza
- MRC-University of Glasgow Centre for Virus Research, Glasgow, UK
- Virology Research Center, School of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Marilia Farignoli Romeiro
- Virology Research Center, School of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Marcílio Jorge Fumagalli
- Virology Research Center, School of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Sejal Modha
- MRC-University of Glasgow Centre for Virus Research, Glasgow, UK
| | - Jansen de Araujo
- Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | | | - Edison Luiz Durigon
- Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | | | | | - Robert James Gifford
- MRC-University of Glasgow Centre for Virus Research, Glasgow, UK
- *Correspondence: Robert James Gifford,
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Romeiro MF, Souza WMD, Tolardo AL, Vieira LC, Colombo TE, Aquino VH, Nogueira ML, Figueiredo LTM. Evaluation and optimization of SYBR Green real-time reverse transcription polymerase chain reaction as a tool for diagnosis of the Flavivirus genus in Brazil. Rev Soc Bras Med Trop 2017; 49:279-85. [PMID: 27384823 DOI: 10.1590/0037-8682-0444-2015] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2016] [Accepted: 05/26/2016] [Indexed: 02/07/2023] Open
Abstract
INTRODUCTION The genus Flavivirus includes several pathogenic species that cause severe illness in humans. Therefore, a rapid and accurate molecular method for diagnosis and surveillance of these viruses would be of great importance. Here, we evaluate and optimize a quantitative real-time reverse transcription polymerase chain reaction (RT-PCR) method for the diagnosis of the Flavivirus genus. METHODS We evaluated different commercial kits that use the SYBR Green system for real-time RT-PCR with a primer set that amplifies a fragment of the NS5 flavivirus gene. The specificity and sensitivity of the assay were tested using twelve flaviviruses and ribonucleic acid (RNA) transcribed from the yellow fever virus. Additionally, this assay was evaluated using the sera of 410 patients from different regions of Brazil with acute febrile illness and a negative diagnosis for the dengue virus. RESULTS The real-time RT-PCR amplified all flaviviruses tested at a melting temperature of 79.92 to 83.49°C. A detection limit of 100 copies per ml was determined for this assay. Surprisingly, we detected dengue virus in 4.1% (17/410) of samples from patients with febrile illness and a supposedly negative dengue infection diagnosis. The viral load in patients ranged from 2.1×107to 3.4×103copies per ml. CONCLUSIONS The real-time RT-PCR method may be very useful for preliminary diagnoses in screenings, outbreaks, and other surveillance studies. Moreover, this assay can be easily applied to monitor viral activity and to measure viral load in pathogenesis studies.
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Affiliation(s)
- Marilia Farignoli Romeiro
- Centro de Pesquisa em Virologia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, São Paulo, Brasil
| | - William Marciel de Souza
- Centro de Pesquisa em Virologia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, São Paulo, Brasil
| | - Aline Lavado Tolardo
- Centro de Pesquisa em Virologia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, São Paulo, Brasil
| | - Luiz Carlos Vieira
- Centro de Pesquisa em Virologia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, São Paulo, Brasil
| | - Tatiana Elias Colombo
- Laboratório de Pesquisa em Virologia, Faculdade de Medicina de São José do Rio Preto, São José do Rio Preto, São Paulo, Brasil
| | - Victor Hugo Aquino
- Laboratório de Virologia, Departamento de Análises Clínicas, Toxicológicas e Bromatológicas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, São Paulo, Brasil
| | - Maurício Lacerda Nogueira
- Laboratório de Pesquisa em Virologia, Faculdade de Medicina de São José do Rio Preto, São José do Rio Preto, São Paulo, Brasil
| | - Luiz Tadeu Moraes Figueiredo
- Centro de Pesquisa em Virologia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, São Paulo, Brasil
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de Souza Luna LK, Rodrigues AH, Santos RIM, Sesti-Costa R, Criado MF, Martins RB, Silva ML, Delcaro LS, Proença-Modena JL, Figueiredo LTM, Acrani GO, Arruda E. Oropouche virus is detected in peripheral blood leukocytes from patients. J Med Virol 2017; 89:1108-1111. [PMID: 27787907 DOI: 10.1002/jmv.24722] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/20/2016] [Indexed: 11/05/2022]
Abstract
Oropouche virus (OROV) is a frequent cause of arboviral febrile disease in the Amazon. The present report describes studies done in two patients, one of them; the first OROV human case acquired outside of the Amazon, which have revealed for the first time the presence of OROV in peripheral blood leukocytes. This novel finding raises important issues regarding pathogenesis of human infections and may offer a new tool, for the rapid diagnosis of this neglected infection. J. Med. Virol. 89:1108-1111, 2017. © 2017 Wiley Periodicals, Inc.
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Affiliation(s)
- Luciano Kleber de Souza Luna
- Department of Cell and Molecular Biology, Virology Research Center, Ribeirao Preto School of Medicine, University of Sao Paulo, Ribeirao Preto, São Paulo, Brazil
| | - Alcir Humberto Rodrigues
- Department of Cell and Molecular Biology, Virology Research Center, Ribeirao Preto School of Medicine, University of Sao Paulo, Ribeirao Preto, São Paulo, Brazil
| | - Rodrigo Ivo Marques Santos
- Department of Cell and Molecular Biology, Virology Research Center, Ribeirao Preto School of Medicine, University of Sao Paulo, Ribeirao Preto, São Paulo, Brazil
| | - Renata Sesti-Costa
- Department of Biochemistry and Immunology, University of Sao Paulo School of Medicine, Ribeirao Preto, São Paulo, Brazil
| | - Miriã Ferreira Criado
- Department of Cell and Molecular Biology, Virology Research Center, Ribeirao Preto School of Medicine, University of Sao Paulo, Ribeirao Preto, São Paulo, Brazil
| | - Ronaldo B Martins
- Department of Cell and Molecular Biology, Virology Research Center, Ribeirao Preto School of Medicine, University of Sao Paulo, Ribeirao Preto, São Paulo, Brazil
| | - Maria Lúcia Silva
- Department of Cell and Molecular Biology, Virology Research Center, Ribeirao Preto School of Medicine, University of Sao Paulo, Ribeirao Preto, São Paulo, Brazil
| | - Luana Sella Delcaro
- Department of Internal Medicine, Virology Research Center, University of Sao Paulo School of Medicine, Ribeirao Preto, São Paulo, Brazil
| | - Jose Luiz Proença-Modena
- Department of Cell and Molecular Biology, Virology Research Center, Ribeirao Preto School of Medicine, University of Sao Paulo, Ribeirao Preto, São Paulo, Brazil
| | - Luiz Tadeu Moraes Figueiredo
- Department of Internal Medicine, Virology Research Center, University of Sao Paulo School of Medicine, Ribeirao Preto, São Paulo, Brazil
| | - Gustavo Olszanski Acrani
- Department of Cell and Molecular Biology, Virology Research Center, Ribeirao Preto School of Medicine, University of Sao Paulo, Ribeirao Preto, São Paulo, Brazil
| | - Eurico Arruda
- Department of Cell and Molecular Biology, Virology Research Center, Ribeirao Preto School of Medicine, University of Sao Paulo, Ribeirao Preto, São Paulo, Brazil
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Tolardo AL, Souza WMD, Romeiro MF, Vieira LC, Luna LKDS, Henriques DA, Araujo JD, Siqueira CEH, Colombo TE, Aquino VH, Fonseca BALD, Bronzoni RVDM, Nogueira ML, Durigon EL, Figueiredo LTM. A real-time reverse transcriptase polymerase chain reaction for detection and quantification of Vesiculovirus. Mem Inst Oswaldo Cruz 2017; 111:385-90. [PMID: 27276185 PMCID: PMC4909037 DOI: 10.1590/0074-02760150456] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2015] [Accepted: 05/06/2016] [Indexed: 01/01/2023] Open
Abstract
Vesiculoviruses (VSV) are zoonotic viruses that cause vesicular stomatitis disease in cattle, horses and pigs, as well as sporadic human cases of acute febrile illness. Therefore, diagnosis of VSV infections by reliable laboratory techniques is important to allow a proper case management and implementation of strategies for the containment of virus spread. We show here a sensitive and reproducible real-time reverse transcriptase polymerase chain reaction (RT-PCR) for detection and quantification of VSV. The assay was evaluated with arthropods and serum samples obtained from horses, cattle and patients with acute febrile disease. The real-time RT-PCR amplified the Piry, Carajas, Alagoas and Indiana Vesiculovirus at a melting temperature 81.02 ± 0.8ºC, and the sensitivity of assay was estimated in 10 RNA copies/mL to the Piry Vesiculovirus. The viral genome has been detected in samples of horses and cattle, but not detected in human sera or arthropods. Thus, this assay allows a preliminary differential diagnosis of VSV infections.
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Affiliation(s)
- Aline Lavado Tolardo
- Universidade de São Paulo, Universidade de São Paulo, Faculdade de Medicina de Ribeirão Preto, Centro de Pesquisa em Virologia, Ribeirão Preto SP , Brasil, Universidade de São Paulo, Faculdade de Medicina de Ribeirão Preto, Centro de Pesquisa em Virologia, Ribeirão Preto, SP, Brasil
| | - William Marciel de Souza
- Universidade de São Paulo, Universidade de São Paulo, Faculdade de Medicina de Ribeirão Preto, Centro de Pesquisa em Virologia, Ribeirão Preto SP , Brasil, Universidade de São Paulo, Faculdade de Medicina de Ribeirão Preto, Centro de Pesquisa em Virologia, Ribeirão Preto, SP, Brasil
| | - Marilia Farignoli Romeiro
- Universidade de São Paulo, Universidade de São Paulo, Faculdade de Medicina de Ribeirão Preto, Centro de Pesquisa em Virologia, Ribeirão Preto SP , Brasil, Universidade de São Paulo, Faculdade de Medicina de Ribeirão Preto, Centro de Pesquisa em Virologia, Ribeirão Preto, SP, Brasil
| | - Luiz Carlos Vieira
- Universidade de São Paulo, Universidade de São Paulo, Faculdade de Medicina de Ribeirão Preto, Centro de Pesquisa em Virologia, Ribeirão Preto SP , Brasil, Universidade de São Paulo, Faculdade de Medicina de Ribeirão Preto, Centro de Pesquisa em Virologia, Ribeirão Preto, SP, Brasil
| | - Luciano Kleber de Souza Luna
- Universidade de São Paulo, Universidade de São Paulo, Faculdade de Medicina de Ribeirão Preto, Centro de Pesquisa em Virologia, Ribeirão Preto SP , Brasil, Universidade de São Paulo, Faculdade de Medicina de Ribeirão Preto, Centro de Pesquisa em Virologia, Ribeirão Preto, SP, Brasil
| | - Dyana Alves Henriques
- Universidade de São Paulo, Universidade de São Paulo, Instituto de Ciências Biomédicas, Laboratório de Virologia Clínica e Molecular, São Paulo SP , Brasil, Universidade de São Paulo, Instituto de Ciências Biomédicas, Laboratório de Virologia Clínica e Molecular, São Paulo, SP, Brasil
| | - Jansen de Araujo
- Universidade de São Paulo, Universidade de São Paulo, Instituto de Ciências Biomédicas, Laboratório de Virologia Clínica e Molecular, São Paulo SP , Brasil, Universidade de São Paulo, Instituto de Ciências Biomédicas, Laboratório de Virologia Clínica e Molecular, São Paulo, SP, Brasil
| | - Carlos Eduardo Hassegawa Siqueira
- Universidade Federal de Mato Grosso, Universidade Federal de Mato Grosso, Instituto de Ciências da Saúde, Centro Universitário de Sinop, Sinop MT , Brasil, Universidade Federal de Mato Grosso, Instituto de Ciências da Saúde, Centro Universitário de Sinop, Sinop, MT, Brasil
| | - Tatiana Elias Colombo
- Faculdade de Medicina de São José do Rio Preto, Faculdade de Medicina de São José do Rio Preto, Laboratório de Pesquisa em Virologia, São José do Rio Preto SP , Brasil, Faculdade de Medicina de São José do Rio Preto, Laboratório de Pesquisa em Virologia, São José do Rio Preto, SP, Brasil
| | - Victor Hugo Aquino
- Universidade de São Paulo, Universidade de São Paulo, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Departamento de Análises Clínicas, Toxicológicas e Bromatológicas, Ribeirão Preto SP , Brasil, Universidade de São Paulo, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Departamento de Análises Clínicas, Toxicológicas e Bromatológicas, Laboratório de Virologia, Ribeirão Preto, SP, Brasil
| | - Benedito Antonio Lopes da Fonseca
- Universidade de São Paulo, Universidade de São Paulo, Faculdade de Medicina de Ribeirão Preto, Centro de Pesquisa em Virologia, Ribeirão Preto SP , Brasil, Universidade de São Paulo, Faculdade de Medicina de Ribeirão Preto, Centro de Pesquisa em Virologia, Ribeirão Preto, SP, Brasil
| | - Roberta Vieira de Morais Bronzoni
- Universidade Federal de Mato Grosso, Universidade Federal de Mato Grosso, Instituto de Ciências da Saúde, Centro Universitário de Sinop, Sinop MT , Brasil, Universidade Federal de Mato Grosso, Instituto de Ciências da Saúde, Centro Universitário de Sinop, Sinop, MT, Brasil
| | - Maurício Lacerda Nogueira
- Faculdade de Medicina de São José do Rio Preto, Faculdade de Medicina de São José do Rio Preto, Laboratório de Pesquisa em Virologia, São José do Rio Preto SP , Brasil, Faculdade de Medicina de São José do Rio Preto, Laboratório de Pesquisa em Virologia, São José do Rio Preto, SP, Brasil
| | - Edison Luiz Durigon
- Universidade de São Paulo, Universidade de São Paulo, Instituto de Ciências Biomédicas, Laboratório de Virologia Clínica e Molecular, São Paulo SP , Brasil, Universidade de São Paulo, Instituto de Ciências Biomédicas, Laboratório de Virologia Clínica e Molecular, São Paulo, SP, Brasil
| | - Luiz Tadeu Moraes Figueiredo
- Universidade de São Paulo, Universidade de São Paulo, Faculdade de Medicina de Ribeirão Preto, Centro de Pesquisa em Virologia, Ribeirão Preto SP , Brasil, Universidade de São Paulo, Faculdade de Medicina de Ribeirão Preto, Centro de Pesquisa em Virologia, Ribeirão Preto, SP, Brasil
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43
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Figueiredo LTM. How are so many foreign arboviruses introduced in Brazil? Rev Soc Bras Med Trop 2016; 49:665-667. [DOI: 10.1590/0037-8682-0499-2016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2016] [Accepted: 11/28/2016] [Indexed: 11/22/2022] Open
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Macciocchi D, Lanini S, Vairo F, Zumla A, Figueiredo LTM, Lauria FN, Strada G, Brouqui P, Puro V, Krishna S, Kremsner P, Scognamiglio P, Köhler C, Nicastri E, Di Caro A, Cieri RM, Ioannidis JPA, Kobinger G, Burattini MN, Ippolito G. Short-term economic impact of the Zika virus outbreak. New Microbiol 2016; 39:287-289. [PMID: 28004846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Accepted: 12/19/2016] [Indexed: 06/06/2023]
Abstract
Zika virus (ZIKV) is mainly transmitted by mosquitoes bites. However, transmission by sexual contacts has been reported in 11 non endemic countries. The rapid spread of ZIKV in Latin American and Caribbean Countries (LCR), person-to-person transmission and perceived risk on people's well being can affect the emerging economies of LCR which historically dependent on truism. Here we present an analysis on economic outputs for assessing the current impact of ZIKV on markets. Our analysis show an unexpected resilience of LCR markets to international alerts. This positive response represents an opportunity to scale-up interventions for preventing the further spreading of the ZIKV epidemic.
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Affiliation(s)
- Daniele Macciocchi
- University of Utah, David Eccles School of Business, Salt Lake City, Utah, USA
| | - Simone Lanini
- 'Lazzaro Spallanzani' National Institute for Infectious Diseases-IRCCS, Rome, Italy
- International Public Health Crisis Group (IPHCG)
| | - Francesco Vairo
- 'Lazzaro Spallanzani' National Institute for Infectious Diseases-IRCCS, Rome, Italy
- International Public Health Crisis Group (IPHCG)
| | - Alimuddin Zumla
- Division of Infection and Immunity, University College London, London, and UK National Institute for Health Research Biomedical Research Centre, UCL Hospitals National Health Service Foundation Trust, London, UK
| | | | | | | | - Philippe Brouqui
- Institut Hospital Universitaire Méditérranée, Service de Maladies Infectieuses et Tropicales, Marseille, France
| | - Vincenzo Puro
- 'Lazzaro Spallanzani' National Institute for Infectious Diseases-IRCCS, Rome, Italy
| | - Sanjeev Krishna
- Division of Infection and Immunity, University College London, London, UK
| | - Peter Kremsner
- Institut für Tropenmedizin, Universitätsklinikum Tübingen, Tübingen, Germany and Centre de Recherches Medicales de Lambarene, Lambarene, Gabon
| | - Paola Scognamiglio
- 'Lazzaro Spallanzani' National Institute for Infectious Diseases-IRCCS, Rome, Italy
| | - Carsten Köhler
- Institut für Tropenmedizin, Universitätsklinikum Tübingen, Tübingen, Germany and Centre de Recherches Medicales de Lambarene, Lambarene, Gabon
| | - Emanuele Nicastri
- 'Lazzaro Spallanzani' National Institute for Infectious Diseases-IRCCS, Rome, Italy
| | - Antonino Di Caro
- 'Lazzaro Spallanzani' National Institute for Infectious Diseases-IRCCS, Rome, Italy
- International Public Health Crisis Group (IPHCG)
| | | | - John P A Ioannidis
- Stanford Prevention Research Center, Stanford University School of Medicine, Stanford, CA, USA
| | - Gary Kobinger
- International Public Health Crisis Group (IPHCG)
- Department of Microbiology and Immunology, Faculty of Medicine, Infectious Disease Research Centre, Quebec-Laval University, Quebec, Canada
| | | | - Giuseppe Ippolito
- 'Lazzaro Spallanzani' National Institute for Infectious Diseases-IRCCS, Rome, Italy
- International Public Health Crisis Group (IPHCG)
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Figueiredo LTM. Serious disease outbreaks caused by viruses transmitted by Aedes aegypti in Brazil. Rev Soc Bras Med Trop 2016; 49:265-6. [PMID: 27384820 DOI: 10.1590/0037-8682-0209-2016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2016] [Accepted: 06/03/2016] [Indexed: 11/22/2022] Open
Affiliation(s)
- Luiz Tadeu Moraes Figueiredo
- Centro de Pesquisa em Virologia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, São Paulo, Brasil
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Souza WMD, Machado AM, Figueiredo LTM. Experimental infection of Rio Mamore hantavirus in Sigmodontinae rodents. Mem Inst Oswaldo Cruz 2016; 111:399-402. [PMID: 27223653 PMCID: PMC4909039 DOI: 10.1590/0074-02760160021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2016] [Accepted: 04/14/2016] [Indexed: 12/22/2022] Open
Abstract
This study shows an experimental spillover infection of Sigmodontinae rodents with Rio Mamore hantavirus (RIOMV). Necromys lasiurus and Akodon sp were infected with 103 RNA copies of RIOMV by intraperitoneal administration. The viral genome was detected in heart, lung, and kidney tissues 18 days after infection (ai), and viral excretion in urine and faeces began at four and six ai, respectively. These results reveal that urine and faeces of infected rodents contain the virus for at least 18 days. It is possible that inhaled aerosols of these excreta could transmit hantavirus to humans and other animals.
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Affiliation(s)
- William Marciel de Souza
- Universidade de São Paulo, Universidade de São Paulo, Faculdade de Medicina de Ribeirão Preto, Centro de Pesquisa em Virologia, Ribeirão Preto SP , Brasil, Universidade de São Paulo, Faculdade de Medicina de Ribeirão Preto, Centro de Pesquisa em Virologia, Ribeirão Preto, SP, Brasil
| | - Alex Martins Machado
- Universidade de São Paulo, Universidade de São Paulo, Faculdade de Medicina de Ribeirão Preto, Centro de Pesquisa em Virologia, Ribeirão Preto SP , Brasil, Universidade de São Paulo, Faculdade de Medicina de Ribeirão Preto, Centro de Pesquisa em Virologia, Ribeirão Preto, SP, Brasil.,Universidade Federal de Mato Grosso do Sul, Universidade Federal de Mato Grosso do Sul, Três Lagoas MS , Brasil, Universidade Federal de Mato Grosso do Sul, Três Lagoas, MS, Brasil
| | - Luiz Tadeu Moraes Figueiredo
- Universidade de São Paulo, Universidade de São Paulo, Faculdade de Medicina de Ribeirão Preto, Centro de Pesquisa em Virologia, Ribeirão Preto SP , Brasil, Universidade de São Paulo, Faculdade de Medicina de Ribeirão Preto, Centro de Pesquisa em Virologia, Ribeirão Preto, SP, Brasil
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47
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de Souza WM, Acrani GO, Romeiro MF, Júnior OR, Tolardo AL, de Andrade AAS, da Silva Gonçalves Vianez Júnior JL, de Almeida Medeiros DB, Nunes MRT, Figueiredo LTM. Complete genome sequence of Piry vesiculovirus. Arch Virol 2016; 161:2325-8. [PMID: 27216928 DOI: 10.1007/s00705-016-2905-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2016] [Accepted: 05/17/2016] [Indexed: 11/25/2022]
Abstract
Piry virus (PIRYV) is a rhabdovirus (genus Vesiculovirus) and is described as a possible human pathogen, originally isolated from a Philander opossum trapped in Para State, Northern Brazil. This study describes the complete full coding sequence and the genetic characterization of PIRYV. The genome sequence reveals that PIRYV has a typical vesiculovirus-like organization, encoding the five genes typical of the genus. Phylogenetic analysis confirmed that PIRYV is most closely related to Perinet virus and clustered in the same clade as Chandipura and Isfahan vesiculoviruses.
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Affiliation(s)
- William Marciel de Souza
- Virology Research Center, School of Medicine of Ribeirao Preto, University of São Paulo, Av. Bandeirantes, 3900, Ribeirao Preto, Sao Paulo State, 14049-900, Brazil.
| | - Gustavo Olszanski Acrani
- Department of Cell and Molecular Biology, University of Sao Paulo School of Medicine, Ribeirão Preto, Brazil
| | - Marilia Farignoli Romeiro
- Virology Research Center, School of Medicine of Ribeirao Preto, University of São Paulo, Av. Bandeirantes, 3900, Ribeirao Preto, Sao Paulo State, 14049-900, Brazil
| | - Osvaldo Reis Júnior
- Laboratório Central de Tecnologias de Alto Desempenho em Ciências da Vida (LaCTAD), Universidade Estadual de Campinas (UNICAMP), Campinas, Brazil
| | - Aline Lavado Tolardo
- Virology Research Center, School of Medicine of Ribeirao Preto, University of São Paulo, Av. Bandeirantes, 3900, Ribeirao Preto, Sao Paulo State, 14049-900, Brazil
| | | | | | | | | | - Luiz Tadeu Moraes Figueiredo
- Virology Research Center, School of Medicine of Ribeirao Preto, University of São Paulo, Av. Bandeirantes, 3900, Ribeirao Preto, Sao Paulo State, 14049-900, Brazil
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de Souza WM, Acrani GO, Romeiro MF, Reis O, Tolardo AL, da Silva SP, de Almeida Medeiros DB, Varela M, Nunes MRT, Figueiredo LTM. Molecular characterization of Capim and Enseada orthobunyaviruses. Infect Genet Evol 2016; 40:47-53. [PMID: 26921797 DOI: 10.1016/j.meegid.2016.02.024] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2015] [Revised: 02/19/2016] [Accepted: 02/20/2016] [Indexed: 11/29/2022]
Abstract
Capim and Enseada viruses are members of the genus Orthobunyavirus isolated from mosquitoes and mammals in Brazil. Despite seroprevalence studies indicating human infections in Latin America, these viruses remain relatively unknown and unstudied. In order to better understand the genetic and evolutionary relationships among orthobunyaviruses, we sequenced the three genomic segments of Capim and Enseada orthobunyaviruses. Based on phylogenetic analysis, we demonstrated that these viruses depicted two new distinct clades, one represented by Enseada and another composed of Capim virus. In general, the genome organization and genetic traits of these viruses are similar to other orthobunyaviruses however, the open reading frame (ORF) of the putative nonstructural NSs protein of Enseada orthobunyavirus precedes the nucleocapsid ORF. Overall, our study provides details on the molecular characteristics of the prototype species of two groups within the Orthobunyavirus genus, revealing novel features into the genetic diversity and evolution of this genus.
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Affiliation(s)
- William Marciel de Souza
- Virology Research Center, School of Medicine of Ribeirao Preto of University of São Paulo, Ribeirao Preto, Brazil.
| | - Gustavo Olszanski Acrani
- Department of Cell and Molecular Biology, University of Sao Paulo School of Medicine, Ribeirão Preto, Brazil
| | - Marilia Farignoli Romeiro
- Virology Research Center, School of Medicine of Ribeirao Preto of University of São Paulo, Ribeirao Preto, Brazil
| | - Osvaldo Reis
- Laboratório Central de Tecnologias de Alto Desempenho em Ciências da Vida (LaCTAD), Universidade Estadual de Campinas (UNICAMP), Campinas, Brazil
| | - Aline Lavado Tolardo
- Virology Research Center, School of Medicine of Ribeirao Preto of University of São Paulo, Ribeirao Preto, Brazil
| | | | | | - Mariana Varela
- MRC-University of Glasgow Centre for Virus Research, 464 Bearsden Road, Glasgow G61 1QH, UK
| | | | - Luiz Tadeu Moraes Figueiredo
- Virology Research Center, School of Medicine of Ribeirao Preto of University of São Paulo, Ribeirao Preto, Brazil
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Affiliation(s)
- Luiz Tadeu Moraes Figueiredo
- Centro de Pesquisa em Virologia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, São Paulo, Brazil
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Mourão MPG, Bastos MDS, Figueiredo RMPD, Gimaque JBDL, Alves VDCR, Saraiva MDGG, Figueiredo MLG, Ramasawmy R, Nogueira ML, Figueiredo LTM. Arboviral diseases in the Western Brazilian Amazon: a perspective and analysis from a tertiary health & research center in Manaus, State of Amazonas. Rev Soc Bras Med Trop 2015; 48 Suppl 1:20-6. [PMID: 26061367 DOI: 10.1590/0037-8682-0133-2013] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2013] [Accepted: 05/22/2014] [Indexed: 11/22/2022] Open
Abstract
The Fundação de Medicina Tropical Dr. Heitor Vieira Dourado (FMT-HVD), located in Manaus, the capital of the State of Amazonas (Western Brazilian Amazon), is a pioneering institution in this region regarding the syndromic surveillance of acute febrile illness, including arboviral infections. Based on the data from patients at the FMT-HVD, we have detected recurrent outbreaks in Manaus by the four dengue serotypes in the past 15 years, with increasing severity of the disease. This endemicity has culminated in the simultaneous circulation of all four serotypes in 2011, the first time this has been reported in Brazil. Between 1996 and 2009, 42 cases of yellow fever (YF) were registered in the State of Amazonas, and 71.4% (30/42) were fatal. Since 2010, no cases have been reported. Because the introduction of the yellow fever virus into a large city such as Manaus, which is widely infested by Aedes mosquitoes, may pose a real risk of a yellow fever outbreak, efforts to maintain an appropriate immunization policy for the populace are critical. Manaus has also suffered silent outbreaks of Mayaro and Oropouche fevers lately, most of which were misdiagnosed as dengue fever. The tropical conditions of the State of Amazonas favor the existence of other arboviruses capable of producing human disease. Under this real threat, represented by at least 4 arboviruses producing human infections in Manaus and in other neighboring countries, it is important to develop an efficient public health surveillance strategy, including laboratories that are able to make proper diagnoses of arboviruses.
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