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Reis LAM, Nunes Neto JP, Nascimento BLSD, Araújo AAD, Nogueira CG, Cavalcante KRLJ, Ramos DG, Durans DDBS, Wanzeler ALM, Santos MM, Júnior JWR, Gonçalves EDJ, Silva SPD, Cruz ACR, Silva EVPD. Isolation and sequencing of Orthoflavivirus ilheusense from mosquitoes collected in the Brazilian cerrado, West-Central region, Brazil. Acta Trop 2024; 257:107272. [PMID: 38885823 DOI: 10.1016/j.actatropica.2024.107272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2024] [Revised: 05/24/2024] [Accepted: 05/24/2024] [Indexed: 06/20/2024]
Abstract
The Orthoflavivirus ilheusense (ILHV) is an arbovirus that was first isolated in Brazil in 1944 during an epidemiologic investigation of yellow fever. Is a member of the Flaviviridae family and it belongs to the antigenic complex of the Ntaya virus group. Psorophora ferox is the primary vector of ILHV and this study presents the isolation and phylogenetic analysis of ILHV in a pool of Ps. ferox collected in the state of Goiás in 2021. Viral isolation tests were performed on Vero cells and C6/36 clones. The indirect immunofluorescence test (IFI) was used to confirm the positivity of the sample. The positive sample underwent RT-qPCR, sequencing, and phylogenetic analysis. This is the first report of ILHV circulation in this municipality and presented close relationship between this isolate and another ILHV isolate collected in the city of Belém (PA).
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Affiliation(s)
- Lúcia Aline Moura Reis
- Graduate Program in Parasitary Biology in the Amazon Region, Center of Biological and Health Sciences, State University of Pará, Belém 66095-663, Brazil
| | - Joaquim Pinto Nunes Neto
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute-IEC/MS/SVSA, Ananindeua 67030-000, Brazil
| | - Bruna Laís Sena do Nascimento
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute-IEC/MS/SVSA, Ananindeua 67030-000, Brazil
| | | | | | | | - Daniel Garkauskas Ramos
- Secretariat for Health Surveillance, Brazilian Ministry of Health, Brasilia, 70.709-040, Brazil
| | | | - Ana Lucia Monteiro Wanzeler
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute-IEC/MS/SVSA, Ananindeua 67030-000, Brazil
| | - Maissa Maia Santos
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute-IEC/MS/SVSA, Ananindeua 67030-000, Brazil
| | - José Wilson Rosa Júnior
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute-IEC/MS/SVSA, Ananindeua 67030-000, Brazil
| | - Ercília de Jesus Gonçalves
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute-IEC/MS/SVSA, Ananindeua 67030-000, Brazil
| | - Sandro Patroca da Silva
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute-IEC/MS/SVSA, Ananindeua 67030-000, Brazil
| | - Ana Cecília Ribeiro Cruz
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute-IEC/MS/SVSA, Ananindeua 67030-000, Brazil
| | - Eliana Vieira Pinto da Silva
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute-IEC/MS/SVSA, Ananindeua 67030-000, Brazil.
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Frazer JL, Norton R. Dengue: A review of laboratory diagnostics in the vaccine age. J Med Microbiol 2024; 73. [PMID: 38722305 DOI: 10.1099/jmm.0.001833] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/30/2024] Open
Abstract
Background. Dengue is an important arboviral infection of considerable public health significance. It occurs in a wide global belt within a variety of tropical regions. The timely laboratory diagnosis of Dengue infection is critical to inform both clinical management and an appropriate public health response. Vaccination against Dengue virus is being introduced in some areas.Discussion. Appropriate diagnostic strategies will vary between laboratories depending on the available resources and skills. Diagnostic methods available include viral culture, the serological detection of Dengue-specific antibodies in using enzyme immunoassays (EIAs), microsphere immunoassays, haemagglutination inhibition or in lateral flow point of care tests. The results of antibody tests may be influenced by prior vaccination and exposure to other flaviviruses. The detection of non-structural protein 1 in serum (NS1) has improved the early diagnosis of Dengue and is available in point-of-care assays in addition to EIAs. Direct detection of viral RNA from blood by PCR is more sensitive than NS1 antigen detection but requires molecular skills and resources. An increasing variety of isothermal nucleic acid detection methods are in development. Timing of specimen collection and choice of test is critical to optimize diagnostic accuracy. Metagenomics and the direct detection by sequencing of viral RNA from blood offers the ability to rapidly type isolates for epidemiologic purposes.Conclusion. The impact of vaccination on immune response must be recognized as it will impact test interpretation and diagnostic algorithms.
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Affiliation(s)
| | - Robert Norton
- Pathology Queensland, Townsville QLD, Australia
- Faculty of Medicine, University of Queensland, Brisbane, QLD, Australia
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Ribeiro AC, Martins L, Silva H, Freitas MN, Santos M, Gonçalves E, Sousa A, Prazeres I, Santos A, Cruz AC, Silva S, Chiang J, Casseb L, Carvalho V. Viral Interference between the Insect-Specific Virus Brejeira and the Saint Louis Encephalitis Virus In Vitro. Viruses 2024; 16:210. [PMID: 38399986 PMCID: PMC10893346 DOI: 10.3390/v16020210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 01/21/2024] [Accepted: 01/27/2024] [Indexed: 02/25/2024] Open
Abstract
The Saint Louis encephalitis virus (SLEV) is an encephalitogenic arbovirus (Flaviviridae family) that has a wide geographical distribution in the western hemisphere, especially in the Americas. The negevirus Brejeira (BREV) was isolated for the first time in Brazil in 2005. This study aimed to verify the existence of a possible interfering effect of BREV on the course of SLEV infection and vice versa. We used clone C6/36 cells. Three combinations of MOIs were used (SLEV 0.1 × BREV 1; SLEV 1 × BREV 0.1; SLEV 1 × BREV 1) in the kinetics of up to 7 days and then the techniques of indirect immunofluorescence (IFA), a plaque assay on Vero cells, and RT-PCR were performed. Our results showed that the cytopathic effect (CPE) caused by BREV was more pronounced than the CPE caused by SLEV. Results of IFA, the plaque assay, and RT-PCR showed the suppression of SLEV replication in the co-infection condition in all the MOI combinations used. The SLEV suppression was dose-dependent. Therefore, the ISV Brejeira can suppress SLEV replication in Aedes albopictus cells, but SLEV does not negatively interfere with BREV replication.
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Affiliation(s)
- Ana Cláudia Ribeiro
- Post-Graduation Program in Virology, Evandro Chagas Institute, Ananindeua 67030-000, Pará, Brazil; (L.M.); (M.N.F.); (A.C.C.); (J.C.); (L.C.)
| | - Lívia Martins
- Post-Graduation Program in Virology, Evandro Chagas Institute, Ananindeua 67030-000, Pará, Brazil; (L.M.); (M.N.F.); (A.C.C.); (J.C.); (L.C.)
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Ananindeua 67030-000, Pará, Brazil; (H.S.); (M.S.); (E.G.); (A.S.); (I.P.); (A.S.); (S.S.)
| | - Heloisa Silva
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Ananindeua 67030-000, Pará, Brazil; (H.S.); (M.S.); (E.G.); (A.S.); (I.P.); (A.S.); (S.S.)
| | - Maria Nazaré Freitas
- Post-Graduation Program in Virology, Evandro Chagas Institute, Ananindeua 67030-000, Pará, Brazil; (L.M.); (M.N.F.); (A.C.C.); (J.C.); (L.C.)
| | - Maissa Santos
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Ananindeua 67030-000, Pará, Brazil; (H.S.); (M.S.); (E.G.); (A.S.); (I.P.); (A.S.); (S.S.)
| | - Ercília Gonçalves
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Ananindeua 67030-000, Pará, Brazil; (H.S.); (M.S.); (E.G.); (A.S.); (I.P.); (A.S.); (S.S.)
| | - Alana Sousa
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Ananindeua 67030-000, Pará, Brazil; (H.S.); (M.S.); (E.G.); (A.S.); (I.P.); (A.S.); (S.S.)
| | - Ivy Prazeres
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Ananindeua 67030-000, Pará, Brazil; (H.S.); (M.S.); (E.G.); (A.S.); (I.P.); (A.S.); (S.S.)
| | - Alessandra Santos
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Ananindeua 67030-000, Pará, Brazil; (H.S.); (M.S.); (E.G.); (A.S.); (I.P.); (A.S.); (S.S.)
| | - Ana Cecilia Cruz
- Post-Graduation Program in Virology, Evandro Chagas Institute, Ananindeua 67030-000, Pará, Brazil; (L.M.); (M.N.F.); (A.C.C.); (J.C.); (L.C.)
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Ananindeua 67030-000, Pará, Brazil; (H.S.); (M.S.); (E.G.); (A.S.); (I.P.); (A.S.); (S.S.)
| | - Sandro Silva
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Ananindeua 67030-000, Pará, Brazil; (H.S.); (M.S.); (E.G.); (A.S.); (I.P.); (A.S.); (S.S.)
| | - Jannifer Chiang
- Post-Graduation Program in Virology, Evandro Chagas Institute, Ananindeua 67030-000, Pará, Brazil; (L.M.); (M.N.F.); (A.C.C.); (J.C.); (L.C.)
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Ananindeua 67030-000, Pará, Brazil; (H.S.); (M.S.); (E.G.); (A.S.); (I.P.); (A.S.); (S.S.)
| | - Livia Casseb
- Post-Graduation Program in Virology, Evandro Chagas Institute, Ananindeua 67030-000, Pará, Brazil; (L.M.); (M.N.F.); (A.C.C.); (J.C.); (L.C.)
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Ananindeua 67030-000, Pará, Brazil; (H.S.); (M.S.); (E.G.); (A.S.); (I.P.); (A.S.); (S.S.)
| | - Valéria Carvalho
- Post-Graduation Program in Virology, Evandro Chagas Institute, Ananindeua 67030-000, Pará, Brazil; (L.M.); (M.N.F.); (A.C.C.); (J.C.); (L.C.)
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Ananindeua 67030-000, Pará, Brazil; (H.S.); (M.S.); (E.G.); (A.S.); (I.P.); (A.S.); (S.S.)
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Henrique Ferreira Sucupira P, Silveira Ferreira M, Santos Coutinho-da-Silva M, Alves Bicalho K, Carolina Campi-Azevedo A, Pedro Brito-de-Sousa J, Peruhype-Magalhães V, Rios M, Konduru K, Teixeira-Carvalho A, Grazziela Alves Coelho-Dos-Reis J, Ribeiro do Valle Antonelli L, Bortolo de Rezende V, Ludolf Ribeiro de Melo F, Couto Garcia C, Carla Silva-Andrade J, Artur da Costa-Rocha I, Alves da Rocha L, Aprigio Silva V, Damasceno Pinto S, Araújo de Melo S, Guimarães Costa A, de Souza Gomes M, Rodrigues Amaral L, Luiz Lima Bertarini P, Cristina da Silva Furtado E, Vieira Pinto da Silva E, Alves Ramos B, Barros Dos Santos É, Nazaré Oliveira Freitas M, Maria Caetano Faria A, Fernando da Costa Vasconcelos P, de Souza Bastos M, Carício Martins L, Assis Martins-Filho O, Sobreira Silva Araújo M. Serotype-associated immune response and network immunoclusters in children and adults during acute Dengue virus infection. Cytokine 2023; 169:156306. [PMID: 37542834 DOI: 10.1016/j.cyto.2023.156306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 05/24/2023] [Accepted: 07/18/2023] [Indexed: 08/07/2023]
Abstract
The present study was designed as an exploratory investigation to characterize the overall profile of chemokines, growth factors, and pro-inflammatory/regulatory cytokines during acute DENV infection according to DENV-1, DENV-2, DENV-4 serotypes and age: children: <1-10-year-old (yo); adolescents:11-20 yo; adults 21-40 yo; and older adults: 41-75 yo. The levels of soluble immunemediators were measured in serum by high-throughput microbeads array in 636 subjects including 317 DENV-infected and 319 age-matching non-infected control (NI). Overall, most soluble mediators were increased in DENV-infected patients as compared to NI group regardless of age and DENV serotype, with high magnitude order of increase for CCL2, CXCL10, IL-1β, IFN-γ, IL1-Ra (fold change >3x), except PDGF in which no fold change was observed. Moreover, despite the age ranges, DENV-1 and DENV-4 presented increased levels of VEGF, IL-6, and TNF-α in serum but decreased levels of PDGF, while DENV-2 exhibited increased levels of CXCL8, CCL4, and IL-12. Noteworthy was that DENV-2 showed increased levels of IL-12, IL-15, IL-17, IL-4, IL-9, and IL-13, and maintained an unaltered levels of PDGF at younger ages (<1-10 yo and 11-20 yo), whereas in older ages (21-40 yo and 41-75 yo), the results showed increased levels of CCL2, IL-6, and TNF-α, but lower levels of PDGF. In general, DENV infection at younger age groups exhibited more complex network immunoclusters as compared to older age groups. Multivariate analysis revealed a clustering of DENV cases according to age for a set of soluble mediators especially in subjects infected with DENV-2 serotype. Altogether, our findings demonstrate that the profile of circulating soluble mediators differs substantially in acute DENV according to age and DENV serotypes suggesting the participation of serotype-associated immune response, which may represent a potential target for development of therapeutics and could be used to assist medical directive for precise clinical management of severe cases.
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Affiliation(s)
| | | | | | - Kelly Alves Bicalho
- Instituto René Rachou, Fundação Oswaldo Cruz (FIOCRUZ-Minas), Belo Horizonte, MG, Brazil
| | | | | | | | - Maria Rios
- Office of Blood Research and Review (OBRR), Center for Biologics Evaluation and Research (CBER), U.S. Food and Drug Administration (FDA), Silver Spring, MD, USA
| | - Krishnamurthy Konduru
- Office of Blood Research and Review (OBRR), Center for Biologics Evaluation and Research (CBER), U.S. Food and Drug Administration (FDA), Silver Spring, MD, USA
| | | | | | | | | | - Fernanda Ludolf Ribeiro de Melo
- Instituto René Rachou, Fundação Oswaldo Cruz (FIOCRUZ-Minas), Belo Horizonte, MG, Brazil; Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Cristiana Couto Garcia
- Instituto René Rachou, Fundação Oswaldo Cruz (FIOCRUZ-Minas), Belo Horizonte, MG, Brazil; Laboratório de Vírus Respiratórios e Sarampo, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro, RJ, Brazil
| | | | | | - Lucia Alves da Rocha
- Fundação de Medicina Tropical Dr. Heitor Vieira Dourado, Manaus, AM, Brazil; Universidade Federal do Amazonas (UFAM), Manaus, AM, Brazil
| | | | | | | | - Allyson Guimarães Costa
- Fundação de Medicina Tropical Dr. Heitor Vieira Dourado, Manaus, AM, Brazil; Universidade Federal do Amazonas (UFAM), Manaus, AM, Brazil; Fundação Hospitalar de Hematologia e Hemoterapia do Amazonas (HEMOAM), Manaus, AM, Brazil
| | - Matheus de Souza Gomes
- Laboratório de Bioinformática e Análises Moleculares, Rede Multidisciplinar de Pesquisa, Ciência e Tecnologia, Universidade Federal de Uberlândia (UFU), Campus Patos de Minas, Minas Gerais, Brazil; Laboratório de Tecnologias Urbanas e Rurais, Faculdade de Engenharia Elétrica, Universidade Federal de Uberlândia (UFU), Campus Patos de Minas, Minas Gerais, Brazil
| | - Laurence Rodrigues Amaral
- Laboratório de Bioinformática e Análises Moleculares, Rede Multidisciplinar de Pesquisa, Ciência e Tecnologia, Universidade Federal de Uberlândia (UFU), Campus Patos de Minas, Minas Gerais, Brazil; Laboratório de Tecnologias Urbanas e Rurais, Faculdade de Engenharia Elétrica, Universidade Federal de Uberlândia (UFU), Campus Patos de Minas, Minas Gerais, Brazil
| | - Pedro Luiz Lima Bertarini
- Laboratório de Bioinformática e Análises Moleculares, Rede Multidisciplinar de Pesquisa, Ciência e Tecnologia, Universidade Federal de Uberlândia (UFU), Campus Patos de Minas, Minas Gerais, Brazil; Laboratório de Tecnologias Urbanas e Rurais, Faculdade de Engenharia Elétrica, Universidade Federal de Uberlândia (UFU), Campus Patos de Minas, Minas Gerais, Brazil
| | | | | | - Bruna Alves Ramos
- Instituto Evandro Chagas, Rodovia BR-316 KM 7 S/N, Ananindeua, PA, Brazil
| | | | | | - Ana Maria Caetano Faria
- Departamento de Bioquímica e Imunologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Pedro Fernando da Costa Vasconcelos
- Instituto Evandro Chagas, Rodovia BR-316 KM 7 S/N, Ananindeua, PA, Brazil; Departamento de Patologia, Centro de Ciências Biológicas e da Saúde, Universidade do Estado do Pará, Belém, PA, Brazil
| | - Michele de Souza Bastos
- Fundação de Medicina Tropical Dr. Heitor Vieira Dourado, Manaus, AM, Brazil; Universidade Federal do Amazonas (UFAM), Manaus, AM, Brazil.
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Thergarajan G, Sekaran SD. Diagnostic approaches for dengue infection. Expert Rev Mol Diagn 2023; 23:643-651. [PMID: 37417532 DOI: 10.1080/14737159.2023.2234815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Accepted: 07/06/2023] [Indexed: 07/08/2023]
Abstract
INTRODUCTION Every year, a significant rise in dengue incidence observed is responsible for 10% of fever episodes in children and adolescents in endemic countries. Considering that the symptoms of dengue are similar to those of many other viruses, early diagnosis of the disease has long been difficult, and lack of sensitive diagnostic tools may be another factor contributing to a rise in dengue incidence. AREAS COVERED This review will highlight dengue diagnostics strategies and discuss other possible targets for dengue diagnosis. Understanding the dynamics of the immune response and how it affects viral infection has enabled informed diagnosis. As more technologies emerge, precise assays that include some clinical markers need to be included. EXPERT OPINION Future diagnostic strategies will require the use both viral and clinical markers in a serial manner with the use of artificial intelligence technology to determine from the first point of illness to better determine severity status and management. A definitive endpoint is not in the horizon as the disease as well as the virus is constantly evolving and hence many developed assays need to be constantly changing some of their reagents periodically as newer genotypes and probably too serotypes emerge.
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Damasceno-Caldeira R, Nunes-Neto JP, Aragão CF, Freitas MNO, Ferreira MS, Castro PHGD, Dias DD, Araújo PADS, Brandão RCF, Nunes BTD, Silva EVPD, Martins LC, Vasconcelos PFDC, Cruz ACR. Vector Competence of Aedes albopictus for Yellow Fever Virus: Risk of Reemergence of Urban Yellow Fever in Brazil. Viruses 2023; 15:v15041019. [PMID: 37112999 PMCID: PMC10146658 DOI: 10.3390/v15041019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 03/25/2023] [Accepted: 03/27/2023] [Indexed: 04/29/2023] Open
Abstract
The risk of the emergence and reemergence of zoonoses is high in regions that are under the strong influence of anthropogenic actions, as they contribute to the risk of vector disease transmission. Yellow fever (YF) is among the main pathogenic arboviral diseases in the world, and the Culicidae Aedes albopictus has been proposed as having the potential to transmit the yellow fever virus (YFV). This mosquito inhabits both urban and wild environments, and under experimental conditions, it has been shown to be susceptible to infection by YFV. In this study, the vector competence of the mosquito Ae. albopictus for the YFV was investigated. Female Ae. albopictus were exposed to non-human primates (NHP) of the genus Callithrix infected with YFV via a needle inoculation. Subsequently, on the 14th and 21st days post-infection, the legs, heads, thorax/abdomen and saliva of the arthropods were collected and analyzed by viral isolation and molecular analysis techniques to verify the infection, dissemination and transmission. The presence of YFV was detected in the saliva samples through viral isolation and in the head, thorax/abdomen and legs both by viral isolation and by molecular detection. The susceptibility of Ae. albopictus to YFV confers a potential risk of reemergence of urban YF in Brazil.
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Affiliation(s)
- Rossela Damasceno-Caldeira
- Programa de Pós-Graduação em Biologia de Agentes Infecciosos e Parasitários, Universidade Federal do Pará, Belém 66075-110, PA, Brazil
| | - Joaquim Pinto Nunes-Neto
- Seção de Arbovirologia e Febres Hemorrágicas, Instituto Evandro Chagas, Secretaria de Vigilância e Saúde, Ministério da Saúde, Ananindeua 67030-000, PA, Brazil
| | - Carine Fortes Aragão
- Seção de Arbovirologia e Febres Hemorrágicas, Instituto Evandro Chagas, Secretaria de Vigilância e Saúde, Ministério da Saúde, Ananindeua 67030-000, PA, Brazil
| | - Maria Nazaré Oliveira Freitas
- Seção de Arbovirologia e Febres Hemorrágicas, Instituto Evandro Chagas, Secretaria de Vigilância e Saúde, Ministério da Saúde, Ananindeua 67030-000, PA, Brazil
| | - Milene Silveira Ferreira
- Seção de Arbovirologia e Febres Hemorrágicas, Instituto Evandro Chagas, Secretaria de Vigilância e Saúde, Ministério da Saúde, Ananindeua 67030-000, PA, Brazil
| | - Paulo Henrique Gomes de Castro
- Centro Nacional de Primatas, Instituto Evandro Chagas, Secretaria de Vigilância e Saúde, Ministério da Saúde, Ananindeua 67030-000, PA, Brazil
| | - Daniel Damous Dias
- Programa de Pós'Graduação em Biologia Parasitária da Amazônia, Universidade do Estado do Pará, Belém 66087-662, PA, Brazil
| | - Pedro Arthur da Silva Araújo
- Programa de Pós-Graduação em Biologia de Agentes Infecciosos e Parasitários, Universidade Federal do Pará, Belém 66075-110, PA, Brazil
| | - Roberto Carlos Feitosa Brandão
- Seção de Arbovirologia e Febres Hemorrágicas, Instituto Evandro Chagas, Secretaria de Vigilância e Saúde, Ministério da Saúde, Ananindeua 67030-000, PA, Brazil
| | - Bruno Tardelli Diniz Nunes
- Seção de Arbovirologia e Febres Hemorrágicas, Instituto Evandro Chagas, Secretaria de Vigilância e Saúde, Ministério da Saúde, Ananindeua 67030-000, PA, Brazil
| | - Eliana Vieira Pinto da Silva
- Seção de Arbovirologia e Febres Hemorrágicas, Instituto Evandro Chagas, Secretaria de Vigilância e Saúde, Ministério da Saúde, Ananindeua 67030-000, PA, Brazil
| | - Lívia Carício Martins
- Seção de Arbovirologia e Febres Hemorrágicas, Instituto Evandro Chagas, Secretaria de Vigilância e Saúde, Ministério da Saúde, Ananindeua 67030-000, PA, Brazil
| | - Pedro Fernando da Costa Vasconcelos
- Programa de Pós-Graduação em Biologia de Agentes Infecciosos e Parasitários, Universidade Federal do Pará, Belém 66075-110, PA, Brazil
- Programa de Pós'Graduação em Biologia Parasitária da Amazônia, Universidade do Estado do Pará, Belém 66087-662, PA, Brazil
| | - Ana Cecília Ribeiro Cruz
- Programa de Pós-Graduação em Biologia de Agentes Infecciosos e Parasitários, Universidade Federal do Pará, Belém 66075-110, PA, Brazil
- Seção de Arbovirologia e Febres Hemorrágicas, Instituto Evandro Chagas, Secretaria de Vigilância e Saúde, Ministério da Saúde, Ananindeua 67030-000, PA, Brazil
- Programa de Pós'Graduação em Biologia Parasitária da Amazônia, Universidade do Estado do Pará, Belém 66087-662, PA, Brazil
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7
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Wanzeller ALM, da Silva FS, Hernández LHA, Barros LJL, Freitas MNO, Santos MM, Gonçalves EDJ, Pantoja JAS, Lima CDS, Lima MF, Costa LRO, das Chagas LL, Silva IF, da Cunha TCADS, do Nascimento BLS, Vasconcelos HB, da Rosa EST, Rodrigues SG, Azevedo RDSDS, Martins LC, Casseb LMN, Chiang JO, Nunes Neto JP, Cruz ACR, Carvalho VL, Vasconcelos PFDC, da Silva EVP. Isolation of Flaviviruses and Alphaviruses with Encephalitogenic Potential Diagnosed by Evandro Chagas Institute (Pará, Brazil) in the Period of 1954-2022: Six Decades of Discoveries. Viruses 2023; 15:v15040935. [PMID: 37112917 PMCID: PMC10146763 DOI: 10.3390/v15040935] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 03/13/2023] [Accepted: 03/20/2023] [Indexed: 04/29/2023] Open
Abstract
Viruses with encephalitogenic potential can cause neurological conditions of clinical and epidemiological importance, such as Saint Louis encephalitis virus, Venezuelan equine encephalitis virus, Eastern equine encephalitis virus, Western equine encephalitis virus, Dengue virus, Zika virus, Chikungunya virus, Mayaro virus and West Nile virus. The objective of the present study was to determine the number of arboviruses with neuroinvasive potential isolated in Brazil that corresponds to the collection of viral samples belonging to the Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute (SAARB/IEC) of the Laboratory Network of National Reference for Arbovirus Diagnosis from 1954 to 2022. In the analyzed period, a total of 1,347 arbovirus samples with encephalitogenic potential were isolated from mice; 5,065 human samples were isolated exclusively by cell culture; and 676 viruses were isolated from mosquitoes. The emergence of new arboviruses may be responsible for diseases still unknown to humans, making the Amazon region a hotspot for infectious diseases due to its fauna and flora species characteristics. The detection of circulating arboviruses with the potential to cause neuroinvasive diseases is constant, which justifies the continuation of active epidemiological surveillance work that offers adequate support to the public health system regarding the virological diagnosis of circulating arboviruses in Brazil.
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Affiliation(s)
- Ana Lucia Monteiro Wanzeller
- Viral Isolation Laboratory, Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Secretariat of Health and Environment Surveillance, Ministry of Health, Ananindeua 67030-000, Brazil
| | - Fabio Silva da Silva
- Viral Isolation Laboratory, Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Secretariat of Health and Environment Surveillance, Ministry of Health, Ananindeua 67030-000, Brazil
| | - Leonardo Henrique Almeida Hernández
- Viral Isolation Laboratory, Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Secretariat of Health and Environment Surveillance, Ministry of Health, Ananindeua 67030-000, Brazil
| | - Landerson Junior Leopoldino Barros
- Viral Isolation Laboratory, Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Secretariat of Health and Environment Surveillance, Ministry of Health, Ananindeua 67030-000, Brazil
| | - Maria Nazaré Oliveira Freitas
- Viral Isolation Laboratory, Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Secretariat of Health and Environment Surveillance, Ministry of Health, Ananindeua 67030-000, Brazil
| | - Maissa Maia Santos
- Viral Isolation Laboratory, Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Secretariat of Health and Environment Surveillance, Ministry of Health, Ananindeua 67030-000, Brazil
| | - Ercília de Jesus Gonçalves
- Viral Isolation Laboratory, Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Secretariat of Health and Environment Surveillance, Ministry of Health, Ananindeua 67030-000, Brazil
| | - Jamilla Augusta Sousa Pantoja
- Viral Isolation Laboratory, Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Secretariat of Health and Environment Surveillance, Ministry of Health, Ananindeua 67030-000, Brazil
| | - Creuza de Sousa Lima
- Viral Isolation Laboratory, Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Secretariat of Health and Environment Surveillance, Ministry of Health, Ananindeua 67030-000, Brazil
| | - Maxwell Furtado Lima
- Viral Isolation Laboratory, Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Secretariat of Health and Environment Surveillance, Ministry of Health, Ananindeua 67030-000, Brazil
| | - Luiz Roberto Oliveira Costa
- Viral Isolation Laboratory, Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Secretariat of Health and Environment Surveillance, Ministry of Health, Ananindeua 67030-000, Brazil
| | - Liliane Leal das Chagas
- Viral Isolation Laboratory, Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Secretariat of Health and Environment Surveillance, Ministry of Health, Ananindeua 67030-000, Brazil
| | - Iveraldo Ferreira Silva
- Viral Isolation Laboratory, Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Secretariat of Health and Environment Surveillance, Ministry of Health, Ananindeua 67030-000, Brazil
| | - Tania Cristina Alves da Silveira da Cunha
- Viral Isolation Laboratory, Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Secretariat of Health and Environment Surveillance, Ministry of Health, Ananindeua 67030-000, Brazil
| | - Bruna Lais Sena do Nascimento
- Viral Isolation Laboratory, Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Secretariat of Health and Environment Surveillance, Ministry of Health, Ananindeua 67030-000, Brazil
| | - Helena Baldez Vasconcelos
- Viral Isolation Laboratory, Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Secretariat of Health and Environment Surveillance, Ministry of Health, Ananindeua 67030-000, Brazil
| | - Elizabeth Salbe Travassos da Rosa
- Viral Isolation Laboratory, Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Secretariat of Health and Environment Surveillance, Ministry of Health, Ananindeua 67030-000, Brazil
| | - Sueli Guerreiro Rodrigues
- Viral Isolation Laboratory, Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Secretariat of Health and Environment Surveillance, Ministry of Health, Ananindeua 67030-000, Brazil
| | - Raimunda do Socorro da Silva Azevedo
- Viral Isolation Laboratory, Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Secretariat of Health and Environment Surveillance, Ministry of Health, Ananindeua 67030-000, Brazil
| | - Lívia Carício Martins
- Viral Isolation Laboratory, Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Secretariat of Health and Environment Surveillance, Ministry of Health, Ananindeua 67030-000, Brazil
| | - Lívia Medeiros Neves Casseb
- Viral Isolation Laboratory, Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Secretariat of Health and Environment Surveillance, Ministry of Health, Ananindeua 67030-000, Brazil
| | - Jannifer Oliveira Chiang
- Viral Isolation Laboratory, Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Secretariat of Health and Environment Surveillance, Ministry of Health, Ananindeua 67030-000, Brazil
| | - Joaquim Pinto Nunes Neto
- Viral Isolation Laboratory, Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Secretariat of Health and Environment Surveillance, Ministry of Health, Ananindeua 67030-000, Brazil
| | - Ana Cecília Ribeiro Cruz
- Viral Isolation Laboratory, Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Secretariat of Health and Environment Surveillance, Ministry of Health, Ananindeua 67030-000, Brazil
| | - Valéria Lima Carvalho
- Viral Isolation Laboratory, Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Secretariat of Health and Environment Surveillance, Ministry of Health, Ananindeua 67030-000, Brazil
| | - Pedro Fernando da Costa Vasconcelos
- Viral Isolation Laboratory, Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Secretariat of Health and Environment Surveillance, Ministry of Health, Ananindeua 67030-000, Brazil
| | - Eliana Vieira Pinto da Silva
- Viral Isolation Laboratory, Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Secretariat of Health and Environment Surveillance, Ministry of Health, Ananindeua 67030-000, Brazil
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8
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Reis LAM, Silva EVPD, Dias DD, Freitas MNO, Caldeira RD, Araújo PADS, Silva FSD, Rosa Junior JW, Brandão RCF, Nascimento BLSD, Martins LC, Neto JPN. Vector Competence of Culex quinquefasciatus from Brazil for West Nile Virus. Trop Med Infect Dis 2023; 8:tropicalmed8040217. [PMID: 37104343 PMCID: PMC10144584 DOI: 10.3390/tropicalmed8040217] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 03/08/2023] [Accepted: 03/15/2023] [Indexed: 04/08/2023] Open
Abstract
West Nile virus is characterized as a neurotropic pathogen, which can cause West Nile fever and is transmitted by mosquitoes of the genus Culex. In 2018, the Instituto Evandro Chagas performed the first isolation of a WNV strain in Brazil from a horse brain sample. The present study aimed to evaluate the susceptibility of orally infected Cx. quinquefasciatus from the Amazon region of Brazil to become infected and transmit the WNV strain isolated in 2018. Oral infection was performed with blood meal artificially infected with WNV, followed by analysis of infection, dissemination, and transmission rates, as well as viral titers of body, head, and saliva samples. At the 21st dpi, the infection rate was 100%, the dissemination rate was 80%, and the transmission rate was 77%. These results indicate that Cx. quinquefasciatus is susceptible to oral infection by the Brazilian strain of WNV and may act as a possible vector of the virus since it was detected in saliva from the 21st dpi.
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Affiliation(s)
- Lúcia Aline Moura Reis
- Graduate Program in Parasitary Biology in the Amazon Region, Center of Biological and Health Sciences, State University of Pará, Belém 66095-663, Brazil
| | - Eliana Vieira Pinto da Silva
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute—IEC/MS/SVSA, Ananindeua 67030-000, Brazil
| | - Daniel Damous Dias
- Graduate Program in Parasitary Biology in the Amazon Region, Center of Biological and Health Sciences, State University of Pará, Belém 66095-663, Brazil
| | - Maria Nazaré Oliveira Freitas
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute—IEC/MS/SVSA, Ananindeua 67030-000, Brazil
| | - Rossela Damasceno Caldeira
- Graduate Program in Biology of Infectious and Parasitary Agents, Biological Sciences Institute, Federal University of Pará, Belém 66077-830, Brazil
| | - Pedro Arthur da Silva Araújo
- Graduate Program in Biology of Infectious and Parasitary Agents, Biological Sciences Institute, Federal University of Pará, Belém 66077-830, Brazil
| | - Fábio Silva da Silva
- Graduate Program in Parasitary Biology in the Amazon Region, Center of Biological and Health Sciences, State University of Pará, Belém 66095-663, Brazil
| | - José Wilson Rosa Junior
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute—IEC/MS/SVSA, Ananindeua 67030-000, Brazil
| | | | - Bruna Laís Sena do Nascimento
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute—IEC/MS/SVSA, Ananindeua 67030-000, Brazil
| | - Lívia Caricio Martins
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute—IEC/MS/SVSA, Ananindeua 67030-000, Brazil
| | - Joaquim Pinto Nunes Neto
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute—IEC/MS/SVSA, Ananindeua 67030-000, Brazil
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9
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Ferreira MS, Martins LC, de Melo KFL, da Silva WB, Imbeloni AA, Muniz JAPC, de Oliveira CF, Freitas MNO, Dos Santos ÉB, Chagas LL, Luz MBM, de Queiroz LAD, Tesh RB, Vasconcelos PFC. Experimental Yellow Fever in the Squirrel Monkey ( Saimiri spp.): Hematological, Biochemical, and Immunological Findings. Viruses 2023; 15:v15030613. [PMID: 36992323 PMCID: PMC10052740 DOI: 10.3390/v15030613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2022] [Revised: 11/04/2022] [Accepted: 11/18/2022] [Indexed: 03/31/2023] Open
Abstract
Between 2016 and 2018, Brazil experienced the largest sylvatic epidemic of yellow fever virus (YFV). Despite to the magnitude and rapid spread of the epidemic, little is known about YFV dispersion. The study evaluated whether the squirrel monkey is a good model for yellow fever (YF) studies. Methods: Ten animals were infected with 1 × 106 PFU/mL of YFV, with one negative control. Blood samples were collected daily during the first 7 days and at 10, 20 and 30 days post infection (dpi) for detection of viral load and cytokines by RT-qPCR; measurements of AST, ALT, urea and creatinine were taken; IgM/IgG antibodies were detected by ELISA, and hemagglutination inhibition and neutralization tests were performed. The animals exhibited fever, flushed appearance, vomiting and petechiae, and one animal died. Viremia was detected between 1 and 10 dpi, and IgM/IgG antibodies appeared between 4 and 30 dpi. The levels of AST, ALT and urea increased. The immune responses were characterized by expression of S100 and CD11b cells; endothelial markers (VCAM-1, ICAM-1 and VLA-4), cell death and stress (Lysozyme and iNOS); and pro-inflammatory cytokines (IL-8, TNF-α, and IFN-γ) and anti-inflammatory cytokines (IL-10 and TGF-β). The squirrel monkeys showed changes similar to those described in humans with YF, and are a good experimental model for the study of YF.
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Affiliation(s)
- Milene S Ferreira
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Ananindeua 67030000, PA, Brazil
- Postgraduate Program in Biology of Infectious and Parasitic Agents, Federal University of Pará, Belém 66075110, PA, Brazil
| | - Lívia C Martins
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Ananindeua 67030000, PA, Brazil
| | - Karla F L de Melo
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Ananindeua 67030000, PA, Brazil
| | | | - Aline A Imbeloni
- National Primate Center, Evandro Chagas Institute, Ananindeua 67030000, PA, Brazil
| | | | - Camille F de Oliveira
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Ananindeua 67030000, PA, Brazil
| | - Maria Nazaré O Freitas
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Ananindeua 67030000, PA, Brazil
| | - Éder B Dos Santos
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Ananindeua 67030000, PA, Brazil
| | - Liliane L Chagas
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Ananindeua 67030000, PA, Brazil
| | - Márcia B M Luz
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Ananindeua 67030000, PA, Brazil
| | - Luiz A D de Queiroz
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Ananindeua 67030000, PA, Brazil
| | - Robert B Tesh
- Department of Pathology, University of Texas Medical Branch, Galveston, TX 77555, USA
| | - Pedro F C Vasconcelos
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Ananindeua 67030000, PA, Brazil
- Department of Pathology, Pará State University, Belém 66050540, PA, Brazil
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10
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Munasinghe E, Athapaththu M, Abeyewickreme W. Immuno-dominant dengue NS1 peptides as antigens for production of monoclonal antibodies. Front Mol Biosci 2022; 9:935456. [PMID: 36339720 PMCID: PMC9635855 DOI: 10.3389/fmolb.2022.935456] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Accepted: 10/04/2022] [Indexed: 08/23/2023] Open
Abstract
Synthetic peptides have recently become common as antigens for antibody production. Peptides are short chains of amino acids that can be used to elicit an immune response. The immunogenicity of the peptide antigens varies depending on the length, charge, solubility, and amino acids contained in the peptide sequence. Dengue NS1 protein is an important target antigen in the early detection of dengue infection. In this study, peptides corresponding to a highly conserved region from the dengue NS1 region were designed and synthesized. Balb/C mice were immunized against each peptide and spleen cells extracted from the immunized mice were fused with NS0 murine myeloma cells. Hybridoma clones obtained from the fusions were tested against peptides using ELISA. Out of 1,830 growing clones, 28 clones produced antibodies reacting with dengue NS1 peptides. A purified monoclonal antibody reacting with all four peptides was tested for reactivity with dengue NS1 native protein using dengue-confirmed serum and urine samples. The monoclonal antibody shows significant reactivity with both serum and urine. The findings of the current research can be used to detect dengue infection using urine, which ultimately results in the prevention of dengue epidemics through painless diagnosis, following treatment, and patient management to safeguard human and economic wellness.
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Affiliation(s)
| | | | - Wimaladharma Abeyewickreme
- Department of Para Clinical Sciences, Faculty of Medicine, General Sir John Kotelawala Defence University, Ratmalana, Sri Lanka
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11
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Ramos BA, Chagas LLD, de Arruda e Silva F, dos Santos EB, Chiang JO, Neto JPN, Vieira DBR, Junior JWR, da Silva EVP, Freitas MNO, Santos MM, Pantoja JADS, Gonçalves EDJ, Barros LJL, Silva SP, Aragão CF, Cruz ACR, Casseb LMN, Souto LCDS, Mascarenhas JDP, Furtado ECDS, Da Silva RNS, Casseb ADR, Martins LC. Arboviruses in Free-Ranging Birds and Hematophagous Arthropods (Diptera, Nematocera) from Forest Remnants and Urbanized Areas of an Environmental Protection Area in the Amazon Biome. Viruses 2022; 14:v14102101. [PMID: 36298656 PMCID: PMC9608863 DOI: 10.3390/v14102101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Revised: 09/11/2022] [Accepted: 09/14/2022] [Indexed: 11/16/2022] Open
Abstract
The rapid and disorderly urbanization in the Amazon has resulted in the insertion of forest fragments into cities, causing the circulation of arboviruses, which can involve hematophagous arthropods and free-ranging birds in the transmission cycles in urban environments. This study aimed to evaluate the circulation of arboviruses in free-ranging birds and hematophagous arthropods captured in an Environmental Protection Area in the Belem metropolitan area, Brazil. Birds were captured using mist nets, and hematophagous arthropods were collected using a human protected attraction technique and light traps. The birds’ sera were subjected to a hemagglutination inhibition test to detect antibodies against 29 arbovirus antigens. Arthropod macerates were inoculated into C6/36 and VERO cell cultures to attempt viral isolation and were tested using indirect immunofluorescence, subsequent genetic sequencing and submitted for phylogenetic analysis. Four bird sera were positive for arbovirus, and one batch of Psorophora ferox was positive for Flavivirus on viral isolation and indirect immunofluorescence. In addition, the Ilheus virus was detected in the sequencing and phylogenetic analysis. The presence of antibodies in sera from free-ranging birds and the isolation of Ilheus virus in Psorophora ferox indicate the circulation of arboviruses in forest remnants in the urban center of Belem.
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Affiliation(s)
- Bruna Alves Ramos
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, BR 316, km 07, s/n, Levilândia, Ananindeua 67030-000, PA, Brazil
- Correspondence:
| | - Liliane Leal Das Chagas
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, BR 316, km 07, s/n, Levilândia, Ananindeua 67030-000, PA, Brazil
| | - Franko de Arruda e Silva
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, BR 316, km 07, s/n, Levilândia, Ananindeua 67030-000, PA, Brazil
| | - Eder Barros dos Santos
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, BR 316, km 07, s/n, Levilândia, Ananindeua 67030-000, PA, Brazil
| | - Jannifer Oliveira Chiang
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, BR 316, km 07, s/n, Levilândia, Ananindeua 67030-000, PA, Brazil
| | - Joaquim Pinto Nunes Neto
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, BR 316, km 07, s/n, Levilândia, Ananindeua 67030-000, PA, Brazil
| | - Durval Bertram Rodrigues Vieira
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, BR 316, km 07, s/n, Levilândia, Ananindeua 67030-000, PA, Brazil
| | - José Wilson Rosa Junior
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, BR 316, km 07, s/n, Levilândia, Ananindeua 67030-000, PA, Brazil
| | - Eliana Vieira Pinto da Silva
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, BR 316, km 07, s/n, Levilândia, Ananindeua 67030-000, PA, Brazil
| | - Maria Nazaré Oliveira Freitas
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, BR 316, km 07, s/n, Levilândia, Ananindeua 67030-000, PA, Brazil
| | - Maissa Maia Santos
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, BR 316, km 07, s/n, Levilândia, Ananindeua 67030-000, PA, Brazil
| | - Jamilla Augusta de Sousa Pantoja
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, BR 316, km 07, s/n, Levilândia, Ananindeua 67030-000, PA, Brazil
| | - Ercília de Jesus Gonçalves
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, BR 316, km 07, s/n, Levilândia, Ananindeua 67030-000, PA, Brazil
| | - Landeson Junior Leopoldino Barros
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, BR 316, km 07, s/n, Levilândia, Ananindeua 67030-000, PA, Brazil
| | - Sandro Patroca Silva
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, BR 316, km 07, s/n, Levilândia, Ananindeua 67030-000, PA, Brazil
| | - Carine Fortes Aragão
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, BR 316, km 07, s/n, Levilândia, Ananindeua 67030-000, PA, Brazil
| | - Ana Cecilia Ribeiro Cruz
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, BR 316, km 07, s/n, Levilândia, Ananindeua 67030-000, PA, Brazil
| | - Lívia Medeiros Neves Casseb
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, BR 316, km 07, s/n, Levilândia, Ananindeua 67030-000, PA, Brazil
| | | | | | | | - Raimundo Nelson Souza Da Silva
- Health and Animal Production Institute, Federal Rural University of Amazonia, Boulevard Pres. Tancredo Neves, 2501, Terra Firme, Belem 66077-830, PA, Brazil
| | - Alexandre do Rosário Casseb
- Health and Animal Production Institute, Federal Rural University of Amazonia, Boulevard Pres. Tancredo Neves, 2501, Terra Firme, Belem 66077-830, PA, Brazil
| | - Lívia Carício Martins
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, BR 316, km 07, s/n, Levilândia, Ananindeua 67030-000, PA, Brazil
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12
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A fatal case of dengue hemorrhagic fever associated with dengue virus 4 (DENV-4) in Brazil: genomic and histopathological findings. Braz J Microbiol 2022; 53:1305-1312. [PMID: 35779208 DOI: 10.1007/s42770-022-00784-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Accepted: 06/10/2022] [Indexed: 11/02/2022] Open
Abstract
Dengue infection is the most prevalent arthropod-borne viral disease in subtropical and tropical regions, whose primary vector is Aedes aegypti mosquitoes. The mechanisms of dengue virus (DENV) pathogenesis are little understood because we have no good disease models. Only humans develop symptoms (dengue fever, DF, or dengue hemorrhagic fever, DHF) and research has been limited to studies involving patients. Samples from serum, brain, cerebellum, heart, lungs, liver, and kidneys from a 13-year-old male patient that died with hemorrhagic manifestations were sent for differential diagnosis at Adolfo Lutz, using both classical virological methods (RT-qPCR, virus isolation, ELISA, and hemagglutination inhibition test) and immunohistochemistry (IHQ). A DENV serotype 4 was detected by a DENV multiplex RT-qPCR, and the C6/36 cell supernatant was used for NGS using Minion. Lesions were described in the heart, liver, lung, and kidney with positive IHQ in endothelial cells of the brain, cerebellum, heart, and kidney, and also in hepatocytes and Kuppfer cells. A whole genome was obtained, revealing a DENV-4 genotype II, with no evidence of secondary dengue infection.
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13
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Coutinho-da-Silva MS, Sucupira PHF, Bicalho KA, Campi-Azevedo AC, Brito-de-Sousa JP, Peruhype-Magalhães V, Rios M, Teixeira-Carvalho A, Coelho-dos-Reis JGA, Antonelli LRDV, de Rezende VB, de Melo FLR, Garcia CC, Silva-Andrade JC, da Costa-Rocha IA, Bastos MDS, da Rocha LA, Silva VA, Ferreira EDS, Marinho EPM, Costa AG, Gomes MDS, Amaral LR, Furtado ECDS, da Silva EVP, Ramos BA, dos Santos ÉB, Freitas MNO, Vasconcelos PFDC, Martins-Filho OA, Araújo MSS, Ferreira MS, Martins LC. Serum Soluble Mediator Profiles and Networks During Acute Infection With Distinct DENV Serotypes. Front Immunol 2022; 13:892990. [PMID: 35711447 PMCID: PMC9193801 DOI: 10.3389/fimmu.2022.892990] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Accepted: 04/22/2022] [Indexed: 11/13/2022] Open
Abstract
A panoramic analysis of chemokines, pro-inflammatory/regulatory cytokines, and growth factors was performed in serum samples from patients with acute DENV infection (n=317) by a high-throughput microbeads array. Most soluble mediators analyzed were increased in DENV patients regardless of the DENV serotype. The substantial increase (≥10-fold) of CXCL10, IL-6, and IFN-γ, and decreased levels of PDGF (<0.4-fold) was universally identified in all DENV serotypes. Of note, increased levels of CXCL8, CCL4, and IL-12 (≥3-9-fold) were selectively observed in DENV2 as compared to DENV1 and DENV4. Heatmap and biomarker signatures further illustrated the massive release of soluble mediators observed in DENV patients, confirming the marked increase of several soluble mediators in DENV2. Integrative correlation matrices and networks showed that DENV infection exhibited higher connectivity among soluble mediators. Of note, DENV2 displayed a more complex network, with higher connectivity involving a higher number of soluble mediators. The timeline kinetics (Day 0-1, D2, D3, D4-6) analysis additionally demonstrated differences among DENV serotypes. While DENV1 triggers a progressive increase of soluble mediators towards D3 and with a decline at D4-6, DENV2 and DENV4 develop with a progressive increase towards D4-6 with an early plateau observed in DENV4. Overall, our results provided a comprehensive overview of the immune response elicited by DENV infection, revealing that infection with distinct DENV serotypes causes distinct profiles, rhythms, and dynamic network connectivity of soluble mediators. Altogether, these findings may provide novel insights to understand the pathogenesis of acute infection with distinct DENV serotypes.
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Affiliation(s)
| | | | - Kelly Alves Bicalho
- Instituto René Rachou, Fundação Oswaldo Cruz (FIOCRUZ-Minas), Belo Horizonte, Brazil
| | | | | | | | - Maria Rios
- Office of Blood Research and Review (OBRR), Center for Biologics Evaluation and Research (CBER), U.S. Food and Drug Administration (FDA), Silver Spring, MD, United States
| | | | | | | | | | - Fernanda Ludolf Ribeiro de Melo
- Instituto René Rachou, Fundação Oswaldo Cruz (FIOCRUZ-Minas), Belo Horizonte, Brazil
- Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Cristiana Couto Garcia
- Instituto René Rachou, Fundação Oswaldo Cruz (FIOCRUZ-Minas), Belo Horizonte, Brazil
- Laboratório de Vírus Respiratórios e Sarampo, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro, Brazil
| | | | | | - Michele de Souza Bastos
- Instituto de Pesquisa Clínica Carlos Borborema, Fundação de Medicina Tropical Dr. Heitor Vieira Dourado, Manaus, Brazil
- Escola de Enfermagem de Manaus, Universidade Federal do Amazonas (UFAM), Manaus, Brazil
| | - Lucia Alves da Rocha
- Instituto de Pesquisa Clínica Carlos Borborema, Fundação de Medicina Tropical Dr. Heitor Vieira Dourado, Manaus, Brazil
- Escola de Enfermagem de Manaus, Universidade Federal do Amazonas (UFAM), Manaus, Brazil
| | - Valderjane Aprigio Silva
- Instituto de Pesquisa Clínica Carlos Borborema, Fundação de Medicina Tropical Dr. Heitor Vieira Dourado, Manaus, Brazil
| | - Ewerton da Silva Ferreira
- Instituto de Pesquisa Clínica Carlos Borborema, Fundação de Medicina Tropical Dr. Heitor Vieira Dourado, Manaus, Brazil
| | | | - Allyson Guimarães Costa
- Instituto de Pesquisa Clínica Carlos Borborema, Fundação de Medicina Tropical Dr. Heitor Vieira Dourado, Manaus, Brazil
- Escola de Enfermagem de Manaus, Universidade Federal do Amazonas (UFAM), Manaus, Brazil
- Diretoria de Ensino e Pesquisa, Fundação Hospitalar de Hematologia e Hemoterapia do Amazonas (HEMOAM), Manaus, Brazil
| | - Matheus de Souza Gomes
- Laboratório de Bioinformática e Análises Moleculares, Rede Multidisciplinar de Pesquisa, Ciência e Tecnologia, Universidade Federal de Uberlândia (UFU), Patos de Minas, Brazil
| | - Laurence Rodrigues Amaral
- Laboratório de Bioinformática e Análises Moleculares, Rede Multidisciplinar de Pesquisa, Ciência e Tecnologia, Universidade Federal de Uberlândia (UFU), Patos de Minas, Brazil
| | | | | | - Bruna Alves Ramos
- Departamento de Arboviroses e Febres Hemorrágicas, Instituto Evandro Chagas, Ananindeua, Brazil
| | - Éder Barros dos Santos
- Departamento de Arboviroses e Febres Hemorrágicas, Instituto Evandro Chagas, Ananindeua, Brazil
| | | | | | - Olindo Assis Martins-Filho
- Instituto René Rachou, Fundação Oswaldo Cruz (FIOCRUZ-Minas), Belo Horizonte, Brazil
- *Correspondence: Olindo Assis Martins-Filho, ; Márcio Sobreira Silva Araújo,
| | - Márcio Sobreira Silva Araújo
- Instituto René Rachou, Fundação Oswaldo Cruz (FIOCRUZ-Minas), Belo Horizonte, Brazil
- *Correspondence: Olindo Assis Martins-Filho, ; Márcio Sobreira Silva Araújo,
| | | | - Livia Carício Martins
- Departamento de Arboviroses e Febres Hemorrágicas, Instituto Evandro Chagas, Ananindeua, Brazil
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14
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da Silva Ribeiro AC, Martins LC, da Silva SP, de Almeida Medeiros DB, Miranda KKP, Nunes Neto JP, de Oliveira Monteiro HA, do Nascimento BLS, Junior JWR, Cruz ACR, da Costa Vasconcelos PF, Carvalho VL, Rodrigues SG. Negeviruses isolated from mosquitoes in the Brazilian Amazon. Virol J 2022; 19:17. [PMID: 35062977 PMCID: PMC8778500 DOI: 10.1186/s12985-022-01743-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Accepted: 01/11/2022] [Indexed: 11/29/2022] Open
Abstract
BACKGROUND There are several groups of viruses including Insect Specific Viruses (ISV) such as the taxon Negevirus, a group of viruses phylogenetically related to plant viruses. Negeviruses replicate in mosquito cells, but not in vertebrate cells. METHODS Pools of hematophagous arthropods were inoculated in Vero and C6/36 cells. The cells were observed to detect possible cytopathic effect. Then, indirect immunofluorescence, RT-PCR, and nucleotide sequencing were performed. RESULTS Seven samples which presented negative results for flaviviruses, alphaviruses and bunyaviruses, but showed cytopathic effect in C6/36 cells were sequenced. We identified the occurrence of a variety of ISVs, most of them belonging to the taxon Negevirus: The Brejeira, Negev, Cordoba and Wallerfield viruses, including a new virus for science, tentatively named Feitosa virus. CONCLUSIONS We detected negeviruses in the Amazon region, including two viruses that were isolated for the first time in Brazil: Cordoba virus and the Negev virus and, a new virus for science: the Feitosa virus.
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Affiliation(s)
- Ana Cláudia da Silva Ribeiro
- Department of Arbovirology and Hemorrhagic Fevers and Postgraduate Program in Virology, Evandro Chagas Institute, Rodovia BR-316 km 7 s/n, Levilândia, Ananindeua, Pará 67030-000 Brazil
| | - Lívia Caricio Martins
- Department of Arbovirology and Hemorrhagic Fevers and Postgraduate Program in Virology, Evandro Chagas Institute, Rodovia BR-316 km 7 s/n, Levilândia, Ananindeua, Pará 67030-000 Brazil
| | - Sandro Patroca da Silva
- Department of Arbovirology and Hemorrhagic Fevers and Postgraduate Program in Virology, Evandro Chagas Institute, Rodovia BR-316 km 7 s/n, Levilândia, Ananindeua, Pará 67030-000 Brazil
| | - Daniele Barbosa de Almeida Medeiros
- Department of Arbovirology and Hemorrhagic Fevers and Postgraduate Program in Virology, Evandro Chagas Institute, Rodovia BR-316 km 7 s/n, Levilândia, Ananindeua, Pará 67030-000 Brazil
| | - Keissy Karoline Pinheiro Miranda
- Department of Arbovirology and Hemorrhagic Fevers and Postgraduate Program in Virology, Evandro Chagas Institute, Rodovia BR-316 km 7 s/n, Levilândia, Ananindeua, Pará 67030-000 Brazil
| | - Joaquim Pinto Nunes Neto
- Department of Arbovirology and Hemorrhagic Fevers and Postgraduate Program in Virology, Evandro Chagas Institute, Rodovia BR-316 km 7 s/n, Levilândia, Ananindeua, Pará 67030-000 Brazil
| | - Hamilton Antônio de Oliveira Monteiro
- Department of Arbovirology and Hemorrhagic Fevers and Postgraduate Program in Virology, Evandro Chagas Institute, Rodovia BR-316 km 7 s/n, Levilândia, Ananindeua, Pará 67030-000 Brazil
| | - Bruna Lais Sena do Nascimento
- Department of Arbovirology and Hemorrhagic Fevers and Postgraduate Program in Virology, Evandro Chagas Institute, Rodovia BR-316 km 7 s/n, Levilândia, Ananindeua, Pará 67030-000 Brazil
| | - Jose Wilson Rosa Junior
- Department of Arbovirology and Hemorrhagic Fevers and Postgraduate Program in Virology, Evandro Chagas Institute, Rodovia BR-316 km 7 s/n, Levilândia, Ananindeua, Pará 67030-000 Brazil
| | - Ana Cecilia Ribeiro Cruz
- Department of Arbovirology and Hemorrhagic Fevers and Postgraduate Program in Virology, Evandro Chagas Institute, Rodovia BR-316 km 7 s/n, Levilândia, Ananindeua, Pará 67030-000 Brazil
| | - Pedro Fernando da Costa Vasconcelos
- Department of Arbovirology and Hemorrhagic Fevers and Postgraduate Program in Virology, Evandro Chagas Institute, Rodovia BR-316 km 7 s/n, Levilândia, Ananindeua, Pará 67030-000 Brazil
| | - Valéria Lima Carvalho
- Department of Arbovirology and Hemorrhagic Fevers and Postgraduate Program in Virology, Evandro Chagas Institute, Rodovia BR-316 km 7 s/n, Levilândia, Ananindeua, Pará 67030-000 Brazil
| | - Sueli Guerreiro Rodrigues
- Department of Arbovirology and Hemorrhagic Fevers and Postgraduate Program in Virology, Evandro Chagas Institute, Rodovia BR-316 km 7 s/n, Levilândia, Ananindeua, Pará 67030-000 Brazil
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15
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Jácome FC, Caldas GC, Rasinhas ADC, de Almeida ALT, de Souza DDC, Paulino AC, da Silva MAN, Bandeira DM, Barth OM, dos Santos FB, Barreto-Vieira DF. Immunocompetent Mice Infected by Two Lineages of Dengue Virus Type 2: Observations on the Pathology of the Lung, Heart and Skeletal Muscle. Microorganisms 2021; 9:microorganisms9122536. [PMID: 34946137 PMCID: PMC8704795 DOI: 10.3390/microorganisms9122536] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 09/27/2021] [Accepted: 09/28/2021] [Indexed: 11/16/2022] Open
Abstract
Dengue virus (DENV) infection by one of the four serotypes (DENV-1 to 4) may result in a wide spectrum of clinical manifestations, with unpredictable evolution and organ involvement. Due to its association with severe epidemics and clinical manifestations, DENV-2 has been substantially investigated. In fact, the first emergence of a new lineage of the DENV-2 Asian/American genotype in Brazil (Lineage II) in 2008 was associated with severe cases and increased mortality related to organ involvement. A major challenge for dengue pathogenesis studies has been a suitable animal model, but the use of immune-competent mice, although sometimes controversial, has proven to be useful, as histological observations in infected animals reveal tissue alterations consistent to those observed in dengue human cases. Here, we aimed to investigate the outcomes caused by two distinct lineages of the DENV-2 Asian/American genotype in the lung, heart and skeletal muscle tissues of infected BALB/c mice. Tissues were submitted to histopathology, immunohistochemistry, histomorphometry and transmission electron microscopy (TEM) analysis. The viral genome was detected in heart and skeletal muscle samples. The viral antigen was detected in cardiomyocytes and endothelial cells of heart tissue. Heart and lung tissue samples presented morphological alterations comparable to those seen in dengue human cases. Creatine kinase serum levels were higher in mice infected with both lineages of DENV-2. Additionally, statistically significant differences, concerning alveolar septa thickening and heart weight, were observed between BALB/c mice infected with both DENV-2 lineages, which was demonstrated to be an appropriate experimental model for dengue pathogenesis studies on lung, heart and skeletal muscle tissues.
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Affiliation(s)
- Fernanda Cunha Jácome
- Laboratory of Viral Morphology and Morphogenesis, Instituto Oswaldo Cruz, Fiocruz, Avenida Brasil 4365, Rio de Janeiro 21040-900, Brazil; (G.C.C.); (A.d.C.R.); (A.L.T.d.A.); (D.D.C.d.S.); (A.C.P.); (M.A.N.d.S.); (D.M.B.); (O.M.B.); (D.F.B.-V.)
- Correspondence:
| | - Gabriela Cardoso Caldas
- Laboratory of Viral Morphology and Morphogenesis, Instituto Oswaldo Cruz, Fiocruz, Avenida Brasil 4365, Rio de Janeiro 21040-900, Brazil; (G.C.C.); (A.d.C.R.); (A.L.T.d.A.); (D.D.C.d.S.); (A.C.P.); (M.A.N.d.S.); (D.M.B.); (O.M.B.); (D.F.B.-V.)
| | - Arthur da Costa Rasinhas
- Laboratory of Viral Morphology and Morphogenesis, Instituto Oswaldo Cruz, Fiocruz, Avenida Brasil 4365, Rio de Janeiro 21040-900, Brazil; (G.C.C.); (A.d.C.R.); (A.L.T.d.A.); (D.D.C.d.S.); (A.C.P.); (M.A.N.d.S.); (D.M.B.); (O.M.B.); (D.F.B.-V.)
| | - Ana Luisa Teixeira de Almeida
- Laboratory of Viral Morphology and Morphogenesis, Instituto Oswaldo Cruz, Fiocruz, Avenida Brasil 4365, Rio de Janeiro 21040-900, Brazil; (G.C.C.); (A.d.C.R.); (A.L.T.d.A.); (D.D.C.d.S.); (A.C.P.); (M.A.N.d.S.); (D.M.B.); (O.M.B.); (D.F.B.-V.)
| | - Daniel Dias Coutinho de Souza
- Laboratory of Viral Morphology and Morphogenesis, Instituto Oswaldo Cruz, Fiocruz, Avenida Brasil 4365, Rio de Janeiro 21040-900, Brazil; (G.C.C.); (A.d.C.R.); (A.L.T.d.A.); (D.D.C.d.S.); (A.C.P.); (M.A.N.d.S.); (D.M.B.); (O.M.B.); (D.F.B.-V.)
| | - Amanda Carlos Paulino
- Laboratory of Viral Morphology and Morphogenesis, Instituto Oswaldo Cruz, Fiocruz, Avenida Brasil 4365, Rio de Janeiro 21040-900, Brazil; (G.C.C.); (A.d.C.R.); (A.L.T.d.A.); (D.D.C.d.S.); (A.C.P.); (M.A.N.d.S.); (D.M.B.); (O.M.B.); (D.F.B.-V.)
| | - Marcos Alexandre Nunes da Silva
- Laboratory of Viral Morphology and Morphogenesis, Instituto Oswaldo Cruz, Fiocruz, Avenida Brasil 4365, Rio de Janeiro 21040-900, Brazil; (G.C.C.); (A.d.C.R.); (A.L.T.d.A.); (D.D.C.d.S.); (A.C.P.); (M.A.N.d.S.); (D.M.B.); (O.M.B.); (D.F.B.-V.)
| | - Derick Mendes Bandeira
- Laboratory of Viral Morphology and Morphogenesis, Instituto Oswaldo Cruz, Fiocruz, Avenida Brasil 4365, Rio de Janeiro 21040-900, Brazil; (G.C.C.); (A.d.C.R.); (A.L.T.d.A.); (D.D.C.d.S.); (A.C.P.); (M.A.N.d.S.); (D.M.B.); (O.M.B.); (D.F.B.-V.)
| | - Ortrud Monika Barth
- Laboratory of Viral Morphology and Morphogenesis, Instituto Oswaldo Cruz, Fiocruz, Avenida Brasil 4365, Rio de Janeiro 21040-900, Brazil; (G.C.C.); (A.d.C.R.); (A.L.T.d.A.); (D.D.C.d.S.); (A.C.P.); (M.A.N.d.S.); (D.M.B.); (O.M.B.); (D.F.B.-V.)
| | - Flavia Barreto dos Santos
- Laboratory of Viral Immunology, Instituto Oswaldo Cruz, Fiocruz, Avenida Brasil 4365, Rio de Janeiro 21040-900, Brazil;
| | - Debora Ferreira Barreto-Vieira
- Laboratory of Viral Morphology and Morphogenesis, Instituto Oswaldo Cruz, Fiocruz, Avenida Brasil 4365, Rio de Janeiro 21040-900, Brazil; (G.C.C.); (A.d.C.R.); (A.L.T.d.A.); (D.D.C.d.S.); (A.C.P.); (M.A.N.d.S.); (D.M.B.); (O.M.B.); (D.F.B.-V.)
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16
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Morphological Aspects and Viremia Analysis of BALB/c Murine Model Experimentally Infected with Dengue Virus Serotype 4. Viruses 2021; 13:v13101954. [PMID: 34696384 PMCID: PMC8538460 DOI: 10.3390/v13101954] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 09/17/2021] [Accepted: 09/24/2021] [Indexed: 11/17/2022] Open
Abstract
Ever since its brief introduction in the Brazilian territory in 1981, dengue virus serotype 4 (DENV-4) remained absent from the national epidemiological scenario for almost 25 years. The emergence of DENV-4 in 2010 resulted in epidemics in most Brazilian states. DENV-4, however, remains one of the least studied among the four DENV serotypes. Despite being known as a mild serotype, DENV-4 is associated with severe cases and deaths and deserves to be investigated; however, the lack of suitable experimental animal models is a limiting factor for pathogenesis studies. Here, we aimed to investigate the susceptibility and potential tropism of DENV-4 for liver, lung and heart of an immunocompetent mice model, and to evaluate and investigate the resulting morphological and ultrastructural alterations upon viral infection. BALB/c mice were inoculated intravenously with non-neuroadapted doses of DENV-4 isolated from a human case. The histopathological analysis of liver revealed typical alterations of DENV, such as microsteatosis, edema and vascular congestion, while in lung, widespread areas of hemorrhage and interstitial pneumonia were observed. While milder alterations were present in heart, characterized by limited hemorrhage and discrete presence of inflammatory infiltrate, the disorganization of the structure of the intercalated disc is of particular interest. DENV-4 RNA was detected in liver, lung, heart and serum of BALB/c mice through qRT-PCR, while the NS3 viral protein was observed in all of the aforementioned organs through immunohistochemistry. These findings indicate the susceptibility of the model to the serotype and further reinforce the usefulness of BALB/c mice in studying the many alterations caused by DENV.
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17
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Brazilian Dengue Virus Type 2-Associated Renal Involvement in a Murine Model: Outcomes after Infection by Two Lineages of the Asian/American Genotype. Pathogens 2021; 10:pathogens10091084. [PMID: 34578117 PMCID: PMC8467194 DOI: 10.3390/pathogens10091084] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 07/25/2021] [Accepted: 07/29/2021] [Indexed: 12/11/2022] Open
Abstract
Dengue virus type 2 (DENV-2) is, traditionally, the most studied serotype due to its association with explosive outbreaks and severe cases. In Brazil, almost 20 years after the first introduction in the 1990s, a new lineage (Lineage II) of the DENV-2 Asian/American genotype emerged and caused an epidemic with severe cases and hospitalizations. Severe dengue includes multiple organ failure, and renal involvement can be potentially related to increased mortality. In order to better understand the role of DENV infection in renal injury, here we aimed to investigate the outcomes of infection with two distinct lineages of DENV-2 Asian/American genotype in the kidney of a murine model. BALB/c mice were infected with Lineages I and II and tissues were submitted to histopathology, immunohistochemistry, histomorphometry and ultrastructural analysis. Blood urea nitrogen (BUN) was detected in blood sample accessed by cardiac puncture. A tendency in kidney weight increase was observed in mice infected with both lineages, but urea levels, on average, were increased only in mice infected with Lineage II. The DENV antigen was detected in the tissue of mice infected with Lineage II and morphological changes were similar to those observed in human dengue cases. Furthermore, the parameters such as organ weight, urea levels and morphometric analysis, showed significant differences between the two lineages in the infected BALB/c, which was demonstrated to be a suitable experimental model for dengue pathophysiology studies in kidneys.
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18
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Chiang JO, Azevedo RS, Justino MCA, Matos HJ, Cabeça HLS, Silva SP, Henriques DF, Silva EVP, Andrade GSS, Vasconcelos PF, Martins LC, Azevedo RSS. Neurological disease caused by Oropouche virus in northern Brazil: should it be included in the scope of clinical neurological diseases? J Neurovirol 2021; 27:626-630. [PMID: 34115330 PMCID: PMC8458178 DOI: 10.1007/s13365-021-00987-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Revised: 04/12/2021] [Accepted: 05/10/2021] [Indexed: 11/13/2022]
Abstract
We describe two neurological cases of Oropouche virus infection in northern Brazil, where the virus is endemic but neglected as a pathogen. This study reiterates the necessity of developing protocols for diagnosing infections and training medical personnel to recognize the pathogenicity of Oropouche virus in neurological infections.
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Affiliation(s)
- Jannifer O Chiang
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Ananindeua, Pará, Brazil.
| | - Rafael S Azevedo
- Institutional Program for Scientific Initiation Scholarships (PIBIC), Evandro Chagas Institute. Ananindeua, Pará, Brazil
| | - Maria C A Justino
- Department of Virology, Evandro Chagas Institute. Ananindeua, Pará, Brazil
| | - Haroldo J Matos
- Epidemiology Service, Evandro Chagas Institute, Ananindeua, Pará, Brazil
| | | | - Sandro P Silva
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Ananindeua, Pará, Brazil
| | - Daniele F Henriques
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Ananindeua, Pará, Brazil
| | - Eliana V P Silva
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Ananindeua, Pará, Brazil
| | | | - Pedro Fc Vasconcelos
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Ananindeua, Pará, Brazil
| | - Lívia C Martins
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Ananindeua, Pará, Brazil
| | - Raimunda S S Azevedo
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Ananindeua, Pará, Brazil
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19
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Mechanisms Underlying Host Range Variation in Flavivirus: From Empirical Knowledge to Predictive Models. J Mol Evol 2021; 89:329-340. [PMID: 34059925 DOI: 10.1007/s00239-021-10013-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2021] [Accepted: 05/13/2021] [Indexed: 12/22/2022]
Abstract
Preventing and controlling epidemics caused by vector-borne viruses are particularly challenging due to their diverse pool of hosts and highly adaptive nature. Many vector-borne viruses belong to the Flavivirus genus, whose members vary greatly in host range and specificity. Members of the Flavivirus genus can be categorized to four main groups: insect-specific viruses that are maintained solely in arthropod populations, mosquito-borne viruses and tick-borne viruses that are transmitted to vertebrate hosts by mosquitoes or ticks via blood feeding, and those with no-known vector. The mosquito-borne group encompasses the yellow fever, dengue, and West Nile viruses, all of which are globally spread and cause severe morbidity in humans. The Flavivirus genus is genetically diverse, and its members are subject to different host-specific and vector-specific selective constraints, which do not always align. Thus, understanding the underlying genetic differences that led to the diversity in host range within this genus is an important aspect in deciphering the mechanisms that drive host compatibility and can aid in the constant arms-race against viral threats. Here, we review the phylogenetic relationships between members of the genus, their infection bottlenecks, and phenotypic and genomic differences. We further discuss methods that utilize these differences for prediction of host shifts in flaviviruses and can contribute to viral surveillance efforts.
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20
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Comparative analysis of liver involvement caused by two DENV-2 lineages using an immunocompetent murine model. Sci Rep 2021; 11:9723. [PMID: 33958631 PMCID: PMC8102549 DOI: 10.1038/s41598-021-88502-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Accepted: 04/12/2021] [Indexed: 11/30/2022] Open
Abstract
Dengue (DEN) is the most prevalent arbovirus among humans, and four billion people live at risk of infection. The clinical manifestations of DEN are variable, and the disease may present subclinically or asymptomatically. A quarter of patients develop classical dengue (CD) or severe dengue (SD), which is potentially lethal and involves vascular permeability changes, severe hemorrhage and organ damage. The involvement of the liver is a fairly common feature in DEN, and alterations range from asymptomatic elevation of transaminases to acute liver failure. Since its introduction in Brazil in 1990, two strains of Dengue virus (DENV) serotype 2 (DENV-2) have been detected: Lineage I, which is responsible for an outbreak in 1991, and Lineage II, which caused an epidemic greater than the previous one and had a different epidemiological profile. To date, studies on different strains of the same serotype/genotype and their association with disease severity are scarce. In addition, one of the greatest challenges regarding the study of DEN pathogenesis and the development of drug and vaccine therapies is the absence of an animal model that reproduces the disease as it occurs in humans. The main goals of this study were to assess BALB/c mouse susceptibility experimentally infected by two distinct DENV-2 strains and characterize possible differences in the clinical signs and alterations induced in the liver resulting from those infections. Mice infected by the two DENV-2 lineages gained less weight than uninfected mice; however, their livers were slightly heavier. Increased AST and AST levels were observed in infected mice, and the number of platelets increased in the first 72 h of infection and subsequently decreased. Mice infected with both lineages presented leukocytosis but at different times of infection. The histopathological changes induced by both lineages were similar and comparable to the changes observed in DEN fatal cases. The viral genome was detected in two liver samples. The results demonstrate the susceptibility of BALB/c mice to both DENV-2 lineages and suggest that the changes induced by those strains are similar, although for some parameters, they are manifested at different times of infection.
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21
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Prommool T, Sethanant P, Phaenthaisong N, Tangthawornchaikul N, Songjaeng A, Avirutnan P, Mairiang D, Luangaram P, Srisawat C, Kasinrerk W, Vasanawathana S, Sriruksa K, Limpitikul W, Malasit P, Puttikhunt C. High performance dengue virus antigen-based serotyping-NS1-ELISA (plus): A simple alternative approach to identify dengue virus serotypes in acute dengue specimens. PLoS Negl Trop Dis 2021; 15:e0009065. [PMID: 33635874 PMCID: PMC7946175 DOI: 10.1371/journal.pntd.0009065] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 03/10/2021] [Accepted: 12/11/2020] [Indexed: 11/30/2022] Open
Abstract
Dengue hemorrhagic fever (DHF) is caused by infection with dengue virus (DENV). Four different serotypes (DENV1-4) co-circulate in dengue endemic areas. The viral RNA genome-based reverse-transcription PCR (RT-PCR) is the most widely used method to identify DENV serotypes in patient specimens. However, the non-structural protein 1 (NS1) antigen as a biomarker for DENV serotyping is an emerging alternative method. We modified the serotyping-NS1-enzyme linked immunosorbent assay (stNS1-ELISA) from the originally established assay which had limited sensitivity overall and poor specificity for the DENV2 serotype. Here, four biotinylated serotype-specific antibodies were applied, including an entirely new design for detection of DENV2. Prediction of the infecting serotype of retrospective acute-phase plasma from dengue patients revealed 100% concordance with the standard RT-PCR method for all four serotypes and 78% overall sensitivity (156/200). The sensitivity of DENV1 NS1 detection was greatly improved (from 62% to 90%) by the addition of a DENV1/DENV3 sub-complex antibody pair. Inclusive of five antibody pairs, the stNS1-ELISA (plus) method showed an overall increased sensitivity to 85.5% (171/200). With the same clinical specimens, a commercial NS1 rapid diagnostic test (NS1-RDT) showed 72% sensitivity (147/200), significantly lower than the stNS1-ELISA (plus) performance. In conclusion, the stNS1-ELISA (plus) is an improved method for prediction of DENV serotype and for overall sensitivity. It could be an alternative assay not only for early dengue diagnosis, but also for serotype identification especially in remote resource-limited dengue endemic areas. Four serotypes of DENV co-circulate in dengue endemic areas. Secondary infection with a different DENV serotype is beleived to involve with severe dengue disease. Standard laboratory diagnosis to identify DENV serotypes in dengue patient specimens is performed by sophisticated genome-based RT-PCR method with serotype-specific oligoprimers. We have previously established an alternative protein-based NS1 assay for DENV serotyping namely, a serotyping-NS1-ELISA (stNS1-ELISA), with the use of serotype-specific monoclonal antibodies (Mabs) to NS1 protein. Due to its unsatisfactory performance, the stNS1-ELISA was modified in this study. The biotinylated serotype-specific detection Mabs were introduced to enhance the overall sensitivity. A new DENV2-specific antibody was applied to improve DENV serotype identification. Prediction of infecting serotype from NS1-positive samples by our modified assay was 100% concordant with the standard RT-PCR method for all four serotypes. The overall sensitivity was greatly improved by an additional DENV1/DENV3 sub-complex antibody. This modified assay is efficient not only for early dengue diagnosis, but also for serotype identification in epidemiological studies and disease surveillance.
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Affiliation(s)
- Tanapan Prommool
- Molecular Biology of Dengue and Flaviviruses Research Team, Medical Molecular Biotechnology Research Group, National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency, Bangkok, Thailand
| | - Pongpawan Sethanant
- Division of Dengue Hemorrhagic Fever Research, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Narodom Phaenthaisong
- Molecular Biology of Dengue and Flaviviruses Research Team, Medical Molecular Biotechnology Research Group, National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency, Bangkok, Thailand
| | - Nattaya Tangthawornchaikul
- Molecular Biology of Dengue and Flaviviruses Research Team, Medical Molecular Biotechnology Research Group, National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency, Bangkok, Thailand
| | - Adisak Songjaeng
- Division of Dengue Hemorrhagic Fever Research, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Panisadee Avirutnan
- Molecular Biology of Dengue and Flaviviruses Research Team, Medical Molecular Biotechnology Research Group, National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency, Bangkok, Thailand
- Division of Dengue Hemorrhagic Fever Research, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
- Siriraj Center of Research Excellence in Dengue and Emerging Pathogens, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Dumrong Mairiang
- Molecular Biology of Dengue and Flaviviruses Research Team, Medical Molecular Biotechnology Research Group, National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency, Bangkok, Thailand
- Division of Dengue Hemorrhagic Fever Research, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
- Siriraj Center of Research Excellence in Dengue and Emerging Pathogens, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Prasit Luangaram
- Molecular Biology of Dengue and Flaviviruses Research Team, Medical Molecular Biotechnology Research Group, National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency, Bangkok, Thailand
| | - Chatchawan Srisawat
- Department of Biochemistry, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Watchara Kasinrerk
- Biomedical Technology Research Center, National Center for Genetic Engineering and Biotechnology, National Sciences and Technology Development Agency, Chiang Mai, Thailand
- Division of Clinical Immunology, Department of Medical Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, Thailand
| | | | | | | | - Prida Malasit
- Molecular Biology of Dengue and Flaviviruses Research Team, Medical Molecular Biotechnology Research Group, National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency, Bangkok, Thailand
- Division of Dengue Hemorrhagic Fever Research, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
- Siriraj Center of Research Excellence in Dengue and Emerging Pathogens, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Chunya Puttikhunt
- Molecular Biology of Dengue and Flaviviruses Research Team, Medical Molecular Biotechnology Research Group, National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency, Bangkok, Thailand
- Division of Dengue Hemorrhagic Fever Research, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
- Siriraj Center of Research Excellence in Dengue and Emerging Pathogens, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
- * E-mail:
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22
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de Oliveira Ribeiro G, da Costa AC, Gill DE, Ribeiro ESD, Rego MODS, Monteiro FJC, Villanova F, Nogueira JS, Maeda AY, de Souza RP, Tahmasebi R, Morais VS, Pandey RP, Raj VS, Scandar SAS, da Silva Vasami FG, D'Agostino LG, Maiorka PC, Deng X, Nogueira ML, Sabino EC, Delwart E, Leal É, Cunha MS. Guapiaçu virus, a new insect-specific flavivirus isolated from two species of Aedes mosquitoes from Brazil. Sci Rep 2021; 11:4674. [PMID: 33633167 PMCID: PMC7907106 DOI: 10.1038/s41598-021-83879-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Accepted: 02/03/2021] [Indexed: 12/18/2022] Open
Abstract
Classical insect-flaviviruses (cISFVs) and dual host-related insect-specific flavivirus (dISFV) are within the major group of insect-specific flavivirus. Remarkably dISFV are evolutionarily related to some of the pathogenic flavivirus, such as Zika and dengue viruses. The Evolutionary relatedness of dISFV to flavivirus allowed us to investigate the evolutionary principle of host adaptation. Additionally, dISFV can be used for the development of flavivirus vaccines and to explore underlying principles of mammalian pathogenicity. Here we describe the genetic characterization of a novel putative dISFV, termed Guapiaçu virus (GUAPV). Distinct strains of GUAPV were isolated from pools of Aedes terrens and Aedes scapularis mosquitoes. Additionally, we also detected viral GUAPV RNA in a plasma sample of an individual febrile from the Amazon region (North of Brazil). Although GUAPV did not replicate in tested mammalian cells, 3′UTR secondary structures duplication and codon usage index were similar to pathogenic flavivirus.
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Affiliation(s)
| | | | - Danielle Elise Gill
- Institute of Tropical Medicine, University of São Paulo, São Paulo, SP, 05403-000, Brazil
| | - Edcelha Soares D'Athaide Ribeiro
- Public Health Laboratory of Amapa-LACEN/AP, Health Surveillance Superintendence of Amapa, Rua Tancredo Neves, 1.118, Macapá, AP, CEP 68905-230, Brazil
| | - Marlisson Octavio da S Rego
- Public Health Laboratory of Amapa-LACEN/AP, Health Surveillance Superintendence of Amapa, Rua Tancredo Neves, 1.118, Macapá, AP, CEP 68905-230, Brazil
| | - Fred Julio Costa Monteiro
- Public Health Laboratory of Amapa-LACEN/AP, Health Surveillance Superintendence of Amapa, Rua Tancredo Neves, 1.118, Macapá, AP, CEP 68905-230, Brazil
| | - Fabiola Villanova
- Institute of Biological Sciences, Federal University of Pará, Belém, Pará, 66075-000, Brazil
| | - Juliana Silva Nogueira
- Vector-Borne Diseases Laboratory, Virology Center, Adolfo Lutz Institute, São Paulo, SP, 01246-000, Brazil
| | - Adriana Yurika Maeda
- Vector-Borne Diseases Laboratory, Virology Center, Adolfo Lutz Institute, São Paulo, SP, 01246-000, Brazil
| | - Renato Pereira de Souza
- Vector-Borne Diseases Laboratory, Virology Center, Adolfo Lutz Institute, São Paulo, SP, 01246-000, Brazil
| | - Roozbeh Tahmasebi
- Institute of Tropical Medicine, University of São Paulo, São Paulo, SP, 05403-000, Brazil
| | - Vanessa S Morais
- Institute of Tropical Medicine, University of São Paulo, São Paulo, SP, 05403-000, Brazil
| | - Ramendra Pati Pandey
- Centre for Drug Design Discovery and Development (C4D), SRM University, Delhi-NCR, Rajiv Gandhi Education City, Sonepat, Haryana, India
| | - V Samuel Raj
- Centre for Drug Design Discovery and Development (C4D), SRM University, Delhi-NCR, Rajiv Gandhi Education City, Sonepat, Haryana, India
| | | | | | | | - Paulo César Maiorka
- Department of Pathology, Faculty of Veterinary Medicine, University of São Paulo, São Paulo, SP, Brazil
| | - Xutao Deng
- Vitalant Research Institute, 270 Masonic Avenue, San Francisco, CA, 94118-4417, USA.,Department Laboratory Medicine, University of California San Francisco, San Francisco, CA, 94143, USA
| | | | - Ester Cerdeira Sabino
- Institute of Tropical Medicine, University of São Paulo, São Paulo, SP, 05403-000, Brazil
| | - Eric Delwart
- Vitalant Research Institute, 270 Masonic Avenue, San Francisco, CA, 94118-4417, USA. .,Department Laboratory Medicine, University of California San Francisco, San Francisco, CA, 94143, USA.
| | - Élcio Leal
- Institute of Biological Sciences, Federal University of Pará, Belém, Pará, 66075-000, Brazil.
| | - Mariana Sequetin Cunha
- Institute of Tropical Medicine, University of São Paulo, São Paulo, SP, 05403-000, Brazil. .,Vector-Borne Diseases Laboratory, Virology Center, Adolfo Lutz Institute, São Paulo, SP, 01246-000, Brazil.
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23
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Barreto-Vieira DF, Couto-Lima D, Jácome FC, Caldas GC, Barth OM. Dengue, Yellow Fever, Zika and Chikungunya epidemic arboviruses in Brazil: ultrastructural aspects. Mem Inst Oswaldo Cruz 2021; 115:e200278. [PMID: 33566939 PMCID: PMC7860610 DOI: 10.1590/0074-02760200278] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Accepted: 12/21/2020] [Indexed: 08/30/2023] Open
Abstract
BACKGROUND The impact of arbovirus cocirculation in Brazil is unknown. Dengue virus (DENV) reinfection may result in more intense viraemia or immunopathology, leading to more severe disease. The Zika virus (ZIKV) epidemic in the Americas provided pathogenicity evidence that had not been previously observed in flavivirus infections. In contrast to other flaviviruses, electron microscopy studies have shown that ZIKV may replicate in viroplasm-like structures. Flaviviruses produce an ensemble of structurally different virions, collectively contributing to tissue tropism and virus dissemination. OBJECTIVES AND METHODS In this work, the Aedes albopictus mosquito cell lineage (C6/36 cells) and kidney epithelial cells from African green monkeys (Vero cells) were infected with samples of the main circulating arboviruses in Brazil [DENV-1, DENV-2, DENV-3, DENV-4, ZIKV, Yellow Fever virus (YFV) and Chikungunya virus (CHIKV)], and ultrastructural studies by transmission electron microscopy were performed. FINDINGS We observed that ZIKV, the DENV serotypes, YFV and CHIKV particles are spherical. ZIKV, DENV-1, -2, -3 and -4 presented diameters of 40-50 nm, and CHIKV presented approximate diameters of 50-60 nm. Viroplasm-like structures was observed in ZIKV replication cycle. MAIN CONCLUSIONS The morphogenesis of these arboviruses is similar to what has been presented in previous studies. However, we understand that further studies are needed to investigate the relationship between viroplasm-like structures and ZIKV replication dynamics.
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Affiliation(s)
- Debora Ferreira Barreto-Vieira
- Fundação Oswaldo Cruz-Fiocruz, Instituto Oswaldo Cruz, Laboratório de Morfologia e Morfogênese Viral, Rio de Janeiro, RJ, Brasil
| | - Dinair Couto-Lima
- Fundação Oswaldo Cruz-Fiocruz, Instituto Oswaldo Cruz, Laboratório de Mosquitos Transmissores de Hematozoários, Rio de Janeiro, RJ, Brasil
| | - Fernanda Cunha Jácome
- Fundação Oswaldo Cruz-Fiocruz, Instituto Oswaldo Cruz, Laboratório de Morfologia e Morfogênese Viral, Rio de Janeiro, RJ, Brasil
| | - Gabriela Cardoso Caldas
- Fundação Oswaldo Cruz-Fiocruz, Instituto Oswaldo Cruz, Laboratório de Morfologia e Morfogênese Viral, Rio de Janeiro, RJ, Brasil
| | - Ortrud Monika Barth
- Fundação Oswaldo Cruz-Fiocruz, Instituto Oswaldo Cruz, Laboratório de Morfologia e Morfogênese Viral, Rio de Janeiro, RJ, Brasil
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24
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Nunes JDSDSS, Casseb LMN, Guimarães RJDPS, Reis WDM, de Barros BDCV, Ferreira MS, Chiang JO, Pinheiro HHC, Vasconcelos PFDC, Cruz ACR. Serological evidence of Eastern equine encephalitis circulation in equids in Pará state, Brazil. BRAZILIAN JOURNAL OF VETERINARY MEDICINE 2021; 43:e001720. [PMID: 35749099 PMCID: PMC9185993 DOI: 10.29374/2527-2179.bjvm001720] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Accepted: 02/21/2021] [Indexed: 11/05/2022] Open
Abstract
Serum samples from 89 equids were analyzed (75 horses, 9 donkeys, and 5 mules) from the municipality of Viseu, Pará state, Brazil. Samples were collected in November 2014 and August 2015. The antibody prevalence against the following alphaviruses was estimated: Eastern equine encephalitis virus, Western equine encephalitis virus, Mucambo virus, and Mayaro virus. Seroprevalence was determined by the hemagglutination inhibition (HI) technique. Sera that exhibited HI antibodies with heterotypic reactions for the analyzed viruses were subjected to the 90% plaque reduction neutralization test (PRNT90). The HI prevalence of monotypic reactions to EEEV was 7.9%, and that of WEEV was 1.1%, as confirmed by PRNT90. Viral isolation attempts were negative for all tested blood samples. Our results suggest the circulation of equine encephalitis complex viruses. Future studies should evaluate the possible involvement of arthropod hosts and residents in the viral transmission in the study area.
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Affiliation(s)
| | | | | | | | | | - Milene Silveira Ferreira
- Biomedical Scientist, DSc, Seção de Arbovirologia e Febres Hemorrágicas, IEC, Ananindeua, PA, Brazil
| | - Jannifer Oliveira Chiang
- Biomedical Scientist, DSc, Seção de Arbovirologia e Febres Hemorrágicas, IEC, Ananindeua, PA, Brazil
| | | | | | - Ana Cecília Ribeiro Cruz
- Biomedical Scientist, DSc, Seção de Arbovirologia e Febres Hemorrágicas, IEC, Ananindeua, PA, Brazil
- Corresponding author: Ana Cecília Ribeiro Cruz Seção de Arbovirologia e Febres Hemorrágicas, Instituto Evandro Chagas (IEC) CEP 67.030-000, Ananindeua (PA), Brazil E- mail:
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25
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Ferreira MS, Júnior PSB, Cerqueira VD, Rivero GRC, Júnior CAO, Castro PHG, da Silva GA, da Silva WB, Imbeloni AA, Sousa JR, Araújo APS, Silva FDAE, Tesh RB, Quaresma JAS, Vasconcelos PFDC. Experimental yellow fever virus infection in the squirrel monkey (Saimiri spp.) I: gross anatomical and histopathological findings in organs at necropsy. Mem Inst Oswaldo Cruz 2020; 115:e190501. [PMID: 33174908 PMCID: PMC7651848 DOI: 10.1590/0074-02760190501] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2019] [Accepted: 10/05/2020] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND Non-human primates contribute to the spread of the yellow fever virus (YFV) and the establishment of transmission cycles in endemic areas. OBJECTIVE To describe the severe histopathological aspects of YFV infection, 10 squirrel monkeys were infected with YFV and blood, brain, liver, kidney, spleen, heart, lung, lymph node and stomach were collected at 1-7, 10, 20 and 30 days post-infection (dpi). METHODS Histopathological analysis and detection of the genome and viral antigens and neutralising antibodies were performed by RT-PCR, immunohistochemistry and neutralisation test, respectively. FINDINGS Only one animal died from the experimental infection. The genome and viral antigens were detected in all investigated organs (1-30 dpi) and the neutralising antibodies from seven to 30 dpi. The brain contained perivascular haemorrhage (6 dpi); in the liver, midzonal haemorrhage and lytic necrosis (6 dpi) were observed. The kidney had bleeding in the Bowman's capsule and tubular necrosis (6 dpi). Pyknotic lymphocytes were observed in the spleen (1-20 dpi), the lung had haemorrhage (2-6 dpi), in the endocardium it contained nuclear pyknosis and necrosis (2-3 dpi) and the stomach contained blood in the lumen (6 dpi). MAIN FINDINGS Squirrel monkeys reliably reproduced the responses observed in human cases of yellow fever and, therefore, constitute an excellent experimental model for studies on the pathophysiology of the disease.
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Affiliation(s)
- Milene Silveira Ferreira
- Instituto Evandro Chagas, Seção de Arbovirologia e Febres Hemorrágicas, Ananindeua, PA, Brasil
- Universidade Federal do Pará, Programa de Pós-Graduação em Biologia de Agentes Infecciosos e Parasitários, Belém, PA, Brasil
| | - Pedro Soares Bezerra Júnior
- Universidade Federal do Pará, Instituto de Medicina Veterinária, Laboratório de Patologia Animal, Castanhal, PA, Brasil
| | - Valíria Duarte Cerqueira
- Universidade Federal do Pará, Instituto de Medicina Veterinária, Laboratório de Patologia Animal, Castanhal, PA, Brasil
| | - Gabriela Riet Correa Rivero
- Universidade Federal do Pará, Instituto de Medicina Veterinária, Laboratório de Patologia Animal, Castanhal, PA, Brasil
| | | | | | | | | | | | - Jorge Rodrigues Sousa
- Instituto Evandro Chagas, Seção de Arbovirologia e Febres Hemorrágicas, Ananindeua, PA, Brasil
| | - Ana Paula Sousa Araújo
- Instituto Evandro Chagas, Seção de Arbovirologia e Febres Hemorrágicas, Ananindeua, PA, Brasil
| | | | - Robert B Tesh
- University of Texas Medical Branch, Department of Pathology, Galveston, TX, USA
| | - Juarez Antônio Simões Quaresma
- Instituto Evandro Chagas, Seção de Arbovirologia e Febres Hemorrágicas, Ananindeua, PA, Brasil
- Universidade do Estado do Pará, Departamento de Patologia, Belém, PA, Brasil
| | - Pedro Fernando da Costa Vasconcelos
- Instituto Evandro Chagas, Seção de Arbovirologia e Febres Hemorrágicas, Ananindeua, PA, Brasil
- Universidade do Estado do Pará, Departamento de Patologia, Belém, PA, Brasil
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26
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Barrio-Nuevo KM, Cunha MS, Luchs A, Fernandes A, Rocco IM, Mucci LF, de Souza RP, Medeiros-Sousa AR, Ceretti-Junior W, Marrelli MT. Detection of Zika and dengue viruses in wild-caught mosquitoes collected during field surveillance in an environmental protection area in São Paulo, Brazil. PLoS One 2020; 15:e0227239. [PMID: 33064724 PMCID: PMC7567345 DOI: 10.1371/journal.pone.0227239] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Accepted: 09/29/2020] [Indexed: 01/31/2023] Open
Abstract
Species of the genus Flavivirus are widespread in Brazil and are a major public health concern. The country's largest city, São Paulo, is in a highly urbanized area with a few forest fragments which are commonly used for recreation. These can be considered to present a potential risk of flavivirus transmission to humans as they are home simultaneously to vertebrate hosts and mosquitoes that are potential flavivirus vectors. The aim of this study was to conduct flavivirus surveillance in field-collected mosquitoes in the Capivari-Monos Environmental Protection Area (EPA) and identify the flavivirus species by sequence analysis in flavivirus IFA-positive pools. Monthly mosquito collections were carried out from March 2016 to April 2017 with CO2-baited CDC light traps. Specimens were identified morphologically and grouped in pools of up to 10 individuals according to their taxonomic category. A total of 260 pools of non-engorged females were inoculated into C6/36 cell culture, and the cell suspensions were analyzed by indirect immunofluorescence assay (IFA) after the incubation period. IFA-positive pools were tested by qRT-PCR with genus-specific primers targeting the flavivirus NS5 gene to confirm IFA-positive results and sequenced to identify the species. Anopheles cruzii (19.5%) and Wyeomyia confusa (15.3%) were the most frequent vector species collected. IFA was positive for flaviviruses in 2.3% (6/260) of the sample pools. This was confirmed by qRT-PCR in five pools (83.3%). All five flavivirus-positive pools were successfully sequenced and the species identified. DENV serotype 2 (DENV-2) was detected in Culex spp. and Culex vaxus pools, while ZIKV was identified in An. cruzii, Limatus durhamii and Wy. confusa pools. To the best of our knowledge, detection of flavivirus species of medical importance has never previously been reported in these species of wild-caught mosquitoes. The finding of DENV-2 and ZIKV circulating in wild mosquitoes suggests the existence of an enzootic cycle in the area. In-depth studies of DENV-2 and ZIKV, including investigation of mosquito infection, vector competence and infection in sylvatic hosts, are needed to shed light on the transmission dynamics of these important viruses and the potential risk of future outbreaks of DENV-2 and ZIKV infections in the region.
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Affiliation(s)
| | - Mariana Sequetin Cunha
- Vector-borne Disease Laboratory, Virology Center, Adolfo Lutz Institute, São Paulo, Brazil
| | - Adriana Luchs
- Enteric Disease Laboratory, Virology Center, Adolfo Lutz Institute, São Paulo, Brazil
| | - Aristides Fernandes
- Epidemiology Department, School of Public Health, University of São Paulo, São Paulo, Brazil
| | - Iray Maria Rocco
- Vector-borne Disease Laboratory, Virology Center, Adolfo Lutz Institute, São Paulo, Brazil
| | - Luis Filipe Mucci
- Superintendency for the Control of Endemic Diseases, State Health Department, São Paulo, Brazil
| | | | | | - Walter Ceretti-Junior
- Epidemiology Department, School of Public Health, University of São Paulo, São Paulo, Brazil
| | - Mauro Toledo Marrelli
- Epidemiology Department, School of Public Health, University of São Paulo, São Paulo, Brazil
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27
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Possible non-sylvatic transmission of yellow fever between non-human primates in São Paulo city, Brazil, 2017-2018. Sci Rep 2020; 10:15751. [PMID: 32978448 PMCID: PMC7519641 DOI: 10.1038/s41598-020-72794-x] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Accepted: 09/04/2020] [Indexed: 12/13/2022] Open
Abstract
Yellow Fever (YF) is a severe disease caused by Yellow Fever Virus (YFV), endemic in some parts of Africa and America. In Brazil, YFV is maintained by a sylvatic transmission cycle involving non-human primates (NHP) and forest canopy-dwelling mosquitoes, mainly Haemagogus-spp and Sabethes-spp. Beginning in 2016, Brazil faced one of the largest Yellow Fever (YF) outbreaks in recent decades, mainly in the southeastern region. In São Paulo city, YFV was detected in October 2017 in Aloutta monkeys in an Atlantic Forest area. From 542 NHP, a total of 162 NHP were YFV positive by RT-qPCR and/or immunohistochemistry, being 22 Callithrix-spp. most from urban areas. Entomological collections executed did not detect the presence of strictly sylvatic mosquitoes. Three mosquito pools were positive for YFV, 2 Haemagogus leucocelaenus, and 1 Aedes scapularis. In summary, YFV in the São Paulo urban area was detected mainly in resident marmosets, and synanthropic mosquitoes were likely involved in viral transmission.
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28
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Chikungunya virus Detection in Aedes aegypti and Culex quinquefasciatus during an Outbreak in the Amazon Region. Viruses 2020; 12:v12080853. [PMID: 32759878 PMCID: PMC7472183 DOI: 10.3390/v12080853] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2020] [Revised: 06/25/2020] [Accepted: 07/03/2020] [Indexed: 12/29/2022] Open
Abstract
Chikungunya virus (CHIKV) was first reported in Brazil in 2014 and, after it spread countrywide, an outbreak of febrile illness with reports of arthralgia happened in the municipality of Xinguara, Pará, Brazil in 2017, indicating the virus' circulation. Here, we aimed to investigate CHIKV in mosquito vectors collected during an active surveillance of virus isolation in cell culture by using molecular detection and viral genome sequencing. A total of 492 Aedes, Culex and Mansonia mosquitoes were collected and separated in 36 pools according to the species and sex, and 22.2% (8/36) were positive. CHIKV was indentified in pools of Ae. aegypti females (n = 5), an Ae. aegypti male (n = 1) and in Culex quinquefasciatus females (n = 2). However, as the mosquitoes' whole bodies were macerated and used for detection, one cannot suggest the role of the latter in the viral transmission. Despite this, vector competence studies must be carried out in the different species to investigate long-term adaptations. Viral genome sequencing has characterized the East-Central-South-African (ECSA) genotype in all positive pools analyzed, corroborating previous reports for the Amazon region.
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29
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Hill SC, de Souza R, Thézé J, Claro I, Aguiar RS, Abade L, Santos FCP, Cunha MS, Nogueira JS, Salles FCS, Rocco IM, Maeda AY, Vasami FGS, du Plessis L, Silveira PP, de Jesus JG, Quick J, Fernandes NCCA, Guerra JM, Réssio RA, Giovanetti M, Alcantara LCJ, Cirqueira CS, Díaz-Delgado J, Macedo FLL, Timenetsky MDCST, de Paula R, Spinola R, Telles de Deus J, Mucci LF, Tubaki RM, de Menezes RMT, Ramos PL, de Abreu AL, Cruz LN, Loman N, Dellicour S, Pybus OG, Sabino EC, Faria NR. Genomic Surveillance of Yellow Fever Virus Epizootic in São Paulo, Brazil, 2016 - 2018. PLoS Pathog 2020; 16:e1008699. [PMID: 32764827 PMCID: PMC7437926 DOI: 10.1371/journal.ppat.1008699] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Revised: 08/19/2020] [Accepted: 06/10/2020] [Indexed: 12/17/2022] Open
Abstract
São Paulo, a densely inhabited state in southeast Brazil that contains the fourth most populated city in the world, recently experienced its largest yellow fever virus (YFV) outbreak in decades. YFV does not normally circulate extensively in São Paulo, so most people were unvaccinated when the outbreak began. Surveillance in non-human primates (NHPs) is important for determining the magnitude and geographic extent of an epizootic, thereby helping to evaluate the risk of YFV spillover to humans. Data from infected NHPs can give more accurate insights into YFV spread than when using data from human cases alone. To contextualise human cases, identify epizootic foci and uncover the rate and direction of YFV spread in São Paulo, we generated and analysed virus genomic data and epizootic case data from NHPs in São Paulo. We report the occurrence of three spatiotemporally distinct phases of the outbreak in São Paulo prior to February 2018. We generated 51 new virus genomes from YFV positive cases identified in 23 different municipalities in São Paulo, mostly sampled from NHPs between October 2016 and January 2018. Although we observe substantial heterogeneity in lineage dispersal velocities between phylogenetic branches, continuous phylogeographic analyses of generated YFV genomes suggest that YFV lineages spread in São Paulo at a mean rate of approximately 1km per day during all phases of the outbreak. Viral lineages from the first epizootic phase in northern São Paulo subsequently dispersed towards the south of the state to cause the second and third epizootic phases there. This alters our understanding of how YFV was introduced into the densely populated south of São Paulo state. Our results shed light on the sylvatic transmission of YFV in highly fragmented forested regions in São Paulo state and highlight the importance of continued surveillance of zoonotic pathogens in sentinel species.
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Affiliation(s)
- Sarah C. Hill
- Department of Zoology, University of Oxford, Oxford, United Kingdom
- Department of Pathobiology and Population Sciences, Royal Veterinary College, Hawkshead, United Kingdom
| | | | - Julien Thézé
- Department of Zoology, University of Oxford, Oxford, United Kingdom
- Université Clermont Auvergne, INRAE, VetAgro Sup, UMR EPIA, Saint-Genès-Champanelle, France
| | - Ingra Claro
- Instituto de Medicina Tropical, Departamento de Moléstias Infecciosas e Parasitárias, Faculdade de Medicina e, Universidade de São Paulo, São Paulo, Brazil
| | - Renato S. Aguiar
- Laboratório de Virologia Molecular, Departamento de Genética, Instituto de Biologia, Rio de Janeiro, Brazil
| | - Leandro Abade
- Department of Zoology, University of Oxford, Oxford, United Kingdom
| | | | | | | | - Flavia C. S. Salles
- Instituto de Medicina Tropical, Departamento de Moléstias Infecciosas e Parasitárias, Faculdade de Medicina e, Universidade de São Paulo, São Paulo, Brazil
| | | | | | | | - Louis du Plessis
- Department of Zoology, University of Oxford, Oxford, United Kingdom
| | - Paola P. Silveira
- Laboratório de Virologia Molecular, Departamento de Genética, Instituto de Biologia, Rio de Janeiro, Brazil
| | - Jaqueline G. de Jesus
- Instituto de Medicina Tropical, Departamento de Moléstias Infecciosas e Parasitárias, Faculdade de Medicina e, Universidade de São Paulo, São Paulo, Brazil
| | - Joshua Quick
- Institute of Microbiology and Infection, University of Birmingham, Birmingham, United Kingdom
| | | | | | | | - Marta Giovanetti
- Laboratório de Flavivírus, Instituto Oswaldo Cruz, FIOCRUZ, Rio de Janeiro, Brazil
| | - Luiz C. J. Alcantara
- Laboratório de Flavivírus, Instituto Oswaldo Cruz, FIOCRUZ, Rio de Janeiro, Brazil
| | | | | | | | | | - Regiane de Paula
- Centro de Vigilância Epidemiológica "Prof. Alexandre Vranjac", São Paulo, Brazil
| | - Roberta Spinola
- Centro de Vigilância Epidemiológica "Prof. Alexandre Vranjac", São Paulo, Brazil
| | | | - Luís F. Mucci
- Superintendência do Controle de Endemias, São Paulo, Brazil
| | | | | | | | - Andre L. de Abreu
- Secretaria de Vigilância em Saúde, Ministério da Saúde (SVS/MS), Brasília-DF, Brazil
| | | | - Nick Loman
- Institute of Microbiology and Infection, University of Birmingham, Birmingham, United Kingdom
| | - Simon Dellicour
- Spatial Epidemiology Lab (SpELL), Université Libre de Bruxelles, CP160/12 50, Bruxelles, Belgium
- Department of Microbiology, Immunology and Transplantation, Rega Institute, KU Leuven, Leuven, Belgium
| | - Oliver G. Pybus
- Department of Zoology, University of Oxford, Oxford, United Kingdom
- Department of Pathobiology and Population Sciences, Royal Veterinary College, Hawkshead, United Kingdom
| | - Ester C. Sabino
- Instituto de Medicina Tropical, Departamento de Moléstias Infecciosas e Parasitárias, Faculdade de Medicina e, Universidade de São Paulo, São Paulo, Brazil
| | - Nuno R. Faria
- Department of Zoology, University of Oxford, Oxford, United Kingdom
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Applying a pan-flavivirus RT-qPCR assay in Brazilian public health surveillance. Arch Virol 2020; 165:1863-1868. [PMID: 32474687 DOI: 10.1007/s00705-020-04680-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Accepted: 04/24/2020] [Indexed: 10/24/2022]
Abstract
The aim of this study was to improve flavivirus field monitoring in Brazil using a reliable probe-based RT-qPCR assay. Standard flavivirus strains were employed to evaluate the performance of the assay, and its applicability was evaluated using 235 stored pools of Culicidae samples collected between 1993 and 1997 and in 2016. Flavivirus species were identified by sequencing. Sixteen (6.8%) samples tested positive: Ilheus virus, Iguape virus, and Saint Louis encephalitis virus were identified in historical specimens from 1993-1994, while insect-specific flaviviruses were detected in the samples from 2016. This approach was demonstrated to be accurate for flavivirus detection and characterization, and it can be successfully applied for vector surveillance and for monitoring and discovery of insect specific flaviviruses.
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31
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Sharp TM, Ryff KR, Santiago GA, Margolis HS, Waterman SH. Lessons Learned from Dengue Surveillance and Research, Puerto Rico, 1899-2013. Emerg Infect Dis 2020; 25:1522-1530. [PMID: 31503540 DOI: 10.3201/eid2508.190089] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Dengue was first reported in Puerto Rico in 1899 and sporadically thereafter. Following outbreaks in 1963 and 1969, the Centers for Disease Control and Prevention has worked closely with the Puerto Rico Department of Health to monitor and reduce the public health burden of dengue. During that time, evolving epidemiologic scenarios have provided opportunities to establish, improve, and expand disease surveillance and interventional research projects. These initiatives have enriched the tools available to the global public health community to understand and combat dengue, including diagnostic tests, methods for disease and vector surveillance, and vector control techniques. Our review serves as a guide to organizations seeking to establish dengue surveillance and research programs by highlighting accomplishments, challenges, and lessons learned during more than a century of dengue surveillance and research conducted in Puerto Rico.
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32
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Cunha MS, Luchs A, da Costa AC, Ribeiro GDO, Dos Santos FCP, Nogueira JS, Komninakis SV, Marinho RDSS, Witkin SS, Villanova F, Deng X, Sabino EC, Delwart E, Leal É, Nogueira ML, Maiorka PC. Detection and characterization of Ilheus and Iguape virus genomes in historical mosquito samples from Southern Brazil. Acta Trop 2020; 205:105401. [PMID: 32081658 DOI: 10.1016/j.actatropica.2020.105401] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Revised: 02/10/2020] [Accepted: 02/16/2020] [Indexed: 11/30/2022]
Abstract
In Brazil, flaviviruses have caused massive outbreaks. Surveillance programs designed to monitor virus activity in vectors provides a system for mapping disease distribution and for identifying specific vector species for targeted control. The present study aimed to describe the detection, whole genome characterization and phylogenetic analysis of Ilheus virus (ILHV) and Iguape virus (IGUV) strains obtained from historical mosquito's samples. Twelve isolates of pooled mosquito specimens (inoculated in neonate mouse brain) collected in the state of São Paulo, Brazil, in 1993, 1994 and 1997 were investigated. Viral RNA was extracted and analyzed by qRT-PCR using Flavivirus genus-specific primers. Positive samples were sequenced and underwent phylogenetic analyses. Flavivirus was detected in 50% of the specimens. Positive samples were successfully Sanger sequenced. Three Anopholes cruzii pools collected in 1994 were positive for IGUV. One Culex sp. pool, one Anopheles triannulatus pool, and one Coquillettidia juxtamansonia pool, collected in 1994, were positive for ILHV. Metagenomic sequencing successfully characterize one ILHV and four IGUV full genomes, and revealed a high degree of homology between the Brazilian ILHV and IGUV strains and isolates available in GenBank. Phylogenetic analysis of partial ILHV NS5 gene revealed three distinct lineages (clades), an indication of genetic heterogeneity in strains circulating in Brazil. Nucleotide insertions and a high-level of nucleotide diversity were observed in the NS1 protein and capsid region of IGUV strains, respectively. Detection of ILHV and IGUV in mosquitoes from Southeastern Brazil confirms the historical circulation of these viruses in this area. Furthermore, this first evidence of ILHV in Anopheles triannulatus suggests the potential importance of Anopheles mosquitoes in the IGUV transmission cycle. Genomic and phylogenetic analysis of these viruses provided insights into their diversity and evolution, which are important for the emergence patterns of flaviviruses and their evolutionary trends in Brazil, an endemic country for several arbovirus. in In-depth studies of ILHV and IGUV including vector competence and molecular studies are needed to shed light on their epidemiology and potential risk of future emergence.
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Affiliation(s)
- Mariana Sequetin Cunha
- Vector-Borne Diseases Laboratory, Virology Center, Adolfo Lutz Institute, São Paulo, Brazil.
| | - Adriana Luchs
- Enteric Diseases Laboratory, Virology Center, Adolfo Lutz Institute, São Paulo, Brazil
| | | | | | | | - Juliana Silva Nogueira
- Vector-Borne Diseases Laboratory, Virology Center, Adolfo Lutz Institute, São Paulo, Brazil
| | - Shirley Vasconcelos Komninakis
- Postgraduate Program in Health Science, Faculty of Medicine of ABC, Santo Andre, Brazil; Retrovirology Laboratory, Federal University of Sao Paulo, Sao Paulo, Brazil
| | | | - Steven S Witkin
- Tropical Medicine Institute of São Paulo, University of São Paulo, São Paulo, Brazil; Department of Obstetrics and Gynecology, Weill Cornell Medicine, New York, USA
| | - Fabiola Villanova
- Biological Sciences Institute, Federal University of Para, Belém, Brazil
| | - Xutao Deng
- Vitalant Research Institute, San Francisco, USA; Department of Laboratory Medicine, University of California San Francisco, San Francisco, USA
| | - Ester Cerdeira Sabino
- Tropical Medicine Institute of São Paulo, University of São Paulo, São Paulo, Brazil; School of Medicine, LIM/46, University of São Paulo, Sao Paulo, Brazil
| | - Eric Delwart
- Vitalant Research Institute, San Francisco, USA; Department of Laboratory Medicine, University of California San Francisco, San Francisco, USA
| | - Élcio Leal
- Biological Sciences Institute, Federal University of Para, Belém, Brazil
| | | | - Paulo César Maiorka
- Department of Pathology, School of Veterinary Medicine, University of Sao Paulo, Sao Paulo, Brazil
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Lima PC, Dutra IS, Araújo FAA, Lustosa R, Zeppelini CG, Franke CR. First record of mass wild waterfowl mortality due to Clostridium botulinum in Brazilian semiarid. AN ACAD BRAS CIENC 2020; 92:e20180370. [PMID: 32321011 DOI: 10.1590/0001-3765202020180370] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Accepted: 02/11/2019] [Indexed: 11/22/2022] Open
Abstract
In 2008, 270 wild birds from aquatic environments were found dead or debilitated on the banks of smaller lakes that had been formed due to the decrease in the level of the holding lake of the Sobradinho Dam located on the São Francisco River in the Caatinga of Bahia, Brazil. The outbreak occurred months after the dam's partial drainage, with the formation of puddles that accumulated decomposing organic material. Amongst the 270 individuals examined and/or found dead, the majority (50%) of the birds found belonged to the Anatidae family. The debilitated birds presented neurological clinical signs including lack of motor coordination, weakness, grave flaccid paralysis in the legs, wings, neck and eyelids, diarrhea, and dyspnea. Tissue samples of the birds were collected, as were water samples and samples of the substrate of the lakes. Zoonotic arboviroses or heavy metals were not detected. Analyses of liver and digestive tract content samples through bioassay and serum neutralization in mice revealed the presence of type C botulinic toxin in the viscerae samples, and type D in sediment samples. According to our knowledge, this is the first record of an outbreak of botulism in wild birds in natural conditions in Brazil.
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Affiliation(s)
- Pedro C Lima
- Laboratório de Infectologia Veterinária, Universidade Federal da Bahia, Rua Barão do Jeremoabo, s/n, 40170-155 Salvador, BA, Brazil
| | - Iveraldo S Dutra
- Escola de Medicina Veterinária, Universidade Estadual Paulista, Rua Clóvis Pestana, 793, Dona Amélia, 16050-680 Araçatuba, SP, Brazil
| | - Francisco A A Araújo
- Faculdades Integradas da União Educacional do Planalto Central, SIGA Área Especial para Indústria Lote 2/3, Sce St. Leste Industrial, Gama, 72445-020 Brasília, DF, Brazil
| | - Ricardo Lustosa
- Laboratório de Infectologia Veterinária, Universidade Federal da Bahia, Rua Barão do Jeremoabo, s/n, 40170-155 Salvador, BA, Brazil
| | - Caio G Zeppelini
- Programa de Pós-Graduação em Ecologia: Teoria, Aplicação e Valores (PPGETAV), Universidade Federal da Bahia, Rua Barão do Jeremoabo, s/n, 40170-155 Salvador, BA, Brazil
| | - Carlos R Franke
- Laboratório de Infectologia Veterinária, Universidade Federal da Bahia, Rua Barão do Jeremoabo, s/n, 40170-155 Salvador, BA, Brazil
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34
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Shastri J, Williamson M, Vaidya N, Agrawal S, Shrivastav O. Nine year trends of dengue virus infection in Mumbai, Western India. J Lab Physicians 2020; 9:296-302. [PMID: 28966494 PMCID: PMC5607761 DOI: 10.4103/jlp.jlp_169_16] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
INTRODUCTION: Dengue virus (DENV) causes a wide range of diseases in humans, from acute febrile illness Dengue fever (DF) to life-threatening Dengue hemorrhagic fever (DHF) or Dengue shock syndrome (DSS). Factors believed to be responsible for spread of Dengue virus infection include explosive population growth, unplanned urban overpopulation with inadequate public health systems, poor standing water and vector control, climate changes and increased international recreational, business, military travel to endemic areas. All of these factors must be addressed to control the spread of Dengue and other mosquito-borne infections. The detection of Dengue virus RNA by reverse transcriptase PCR (RT-PCR) in human serum or plasma samples is highly indicative of acute Dengue fever. Moreover, the method is able to identify the Dengue virus serotype by demonstrating defined sequence homologies in the viral genomic RNA. METHODS AND RESULTS: During the nine year period of this study analysis, 6767 strongly suspected cases were tested by RT-PCR. 1685 (24.9%) were Dengue PCR positive and confirmed as Dengue cases. Observations on the seasonality were based on the nine year's data as the intensity of sampling was at its maximum during monsoon season. Dengue typing was done on 100 positive samples after storage of Dengue RNA at – 80°C. Dengue serotypes were detected in 69 samples of which Dengue 2 was most predominant. 576 samples were processed for NS1 antigen and PCR simultaneously. 19/576 were positive (3.3 %) for NS1 as well as by PCR. 23/576 samples were negative for NS1 antigen, but were positive by RT-PCR. The remaining 534 samples which were negative for NS1 antigen were also negative by Dengue RT-PCR. CONCLUSION: In this study we sought to standardize rapid, sensitive, and specific fluorogenic probe-based RT-PCR assay to screen and serotype a representative range of Dengue viruses that are found in and around Mumbai. Qualitative Dengue virus TaqMan assays could have tremendous utility for the epidemiological investigation of Dengue illness and especially for the study of the viremic response with candidate live-attenuated dengue virus vaccines.
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Affiliation(s)
- Jayanthi Shastri
- Department of Microbiology, B.Y.L.Nair Charitable Hospital, Mumbai, Maharashtra, India
| | - Manita Williamson
- Department of Microbiology, B.Y.L.Nair Charitable Hospital, Mumbai, Maharashtra, India
| | - Nilima Vaidya
- Kasturba Hospital of Infectious Diseases, Mumbai, Maharashtra, India
| | - Sachee Agrawal
- Department of Microbiology, B.Y.L.Nair Charitable Hospital, Mumbai, Maharashtra, India
| | - Om Shrivastav
- Kasturba Hospital of Infectious Diseases, Mumbai, Maharashtra, India
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35
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Aragão CF, Pinheiro VCS, Nunes Neto JP, da Silva EVP, Pereira GJG, do Nascimento BLS, Castro KDS, Maia AM, Catete CP, Martins LC, Tadei WP, da Silva SP, Cruz ACR. Natural Infection of Aedes aegypti by Chikungunya and Dengue type 2 Virus in a Transition Area of North-Northeast Brazil. Viruses 2019; 11:E1126. [PMID: 31817553 PMCID: PMC6949906 DOI: 10.3390/v11121126] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2019] [Revised: 11/06/2019] [Accepted: 11/07/2019] [Indexed: 01/16/2023] Open
Abstract
Dengue fever, chikungunya, and Zika are diseases caused by viruses transmitted by Aedes aegypti and Aedes albopictus. In Brazil, the number of human infections is high, but few studies are performed in mosquito vectors. This study aimed to investigate the presence of Zika, Dengue and Chikungunya viruses in Ae. aegypti and Ae. albopictus from the municipalities of Alto Alegre, Caxias, Codó, and São Mateus do Maranhão, located in the state of Maranhão, Northeast Brazil. The mosquitoes were collected with a mechanical aspirator, identified, triturated, and then submitted to RNA extraction and RT-qPCR. The positive samples were confirmed by virus isolation and genome sequencing. Three hundred and forty-eight Ae. aegypti (176 males and 172 females) and 12 Ae. albopictus (eight males and four females) were collected and tested. Ae. aegypti was the only vector positive in two municipalities-Codó, with detection of Chikungunya virus (CHIKV) belonging to the East-Central-South African genotype, and in Caxias, with detection of Dengue virus (DENV)-2 belonging to the Asian/American genotype. The detection of CHIKV and DENV-2 is evidence that those viruses are maintained in arthropod vectors, and shows the epidemiological risk in the area for chikungunya cases and a possible increase of severe dengue cases, associated with the occurrence of dengue hemorrhagic fever.
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Affiliation(s)
- Carine Fortes Aragão
- Programa de Pós-Graduação em Biologia dos Agentes Infecciosos e Parasitários, Universidade Federal do Pará, Belém, PA 66075-110, Brazil;
| | - Valéria Cristina Soares Pinheiro
- Laboratório de Entomologia Médica, Centro de Estudos Superiores de Caxias, Universidade Estadual do Maranhão, Caxias, MA 65604-380, Brazil;
| | - Joaquim Pinto Nunes Neto
- Seção de Arbovirologia e Febres Hemorrágicas, Instituto Evandro Chagas, Secretaria de Vigilância e Saúde, Ministério da Saúde, Ananindeua, PA 67030-000, Brazil; (J.P.N.N.); (E.V.P.d.S.); (G.J.G.P.); (B.L.S.d.N.); (L.C.M.); (S.P.d.S.)
| | - Eliana Vieira Pinto da Silva
- Seção de Arbovirologia e Febres Hemorrágicas, Instituto Evandro Chagas, Secretaria de Vigilância e Saúde, Ministério da Saúde, Ananindeua, PA 67030-000, Brazil; (J.P.N.N.); (E.V.P.d.S.); (G.J.G.P.); (B.L.S.d.N.); (L.C.M.); (S.P.d.S.)
| | - Glennda Juscely Galvão Pereira
- Seção de Arbovirologia e Febres Hemorrágicas, Instituto Evandro Chagas, Secretaria de Vigilância e Saúde, Ministério da Saúde, Ananindeua, PA 67030-000, Brazil; (J.P.N.N.); (E.V.P.d.S.); (G.J.G.P.); (B.L.S.d.N.); (L.C.M.); (S.P.d.S.)
| | - Bruna Laís Sena do Nascimento
- Seção de Arbovirologia e Febres Hemorrágicas, Instituto Evandro Chagas, Secretaria de Vigilância e Saúde, Ministério da Saúde, Ananindeua, PA 67030-000, Brazil; (J.P.N.N.); (E.V.P.d.S.); (G.J.G.P.); (B.L.S.d.N.); (L.C.M.); (S.P.d.S.)
| | - Karoline da Silva Castro
- Programa de Pós-Graduação em Biologia Parasitária na Amazônia, Universidade do Estado do Pará, Belém, PA 66087-670, Brazil; (K.d.S.C.); (A.M.M.)
| | - Ariadne Mendonça Maia
- Programa de Pós-Graduação em Biologia Parasitária na Amazônia, Universidade do Estado do Pará, Belém, PA 66087-670, Brazil; (K.d.S.C.); (A.M.M.)
| | - Clistenes Pamplona Catete
- Instituto Evandro Chagas, Secretaria de Vigilância e Saúde, Ministério da Saúde, Ananindeua, PA 67030-000, Brazil;
| | - Lívia Carício Martins
- Seção de Arbovirologia e Febres Hemorrágicas, Instituto Evandro Chagas, Secretaria de Vigilância e Saúde, Ministério da Saúde, Ananindeua, PA 67030-000, Brazil; (J.P.N.N.); (E.V.P.d.S.); (G.J.G.P.); (B.L.S.d.N.); (L.C.M.); (S.P.d.S.)
| | - Wanderli Pedro Tadei
- Laboratório de Malária e Dengue, Instituto Nacional de Pesquisas da Amazônia, Manaus, CEP 69060-001, Manaus - AM, Brazil;
| | - Sandro Patroca da Silva
- Seção de Arbovirologia e Febres Hemorrágicas, Instituto Evandro Chagas, Secretaria de Vigilância e Saúde, Ministério da Saúde, Ananindeua, PA 67030-000, Brazil; (J.P.N.N.); (E.V.P.d.S.); (G.J.G.P.); (B.L.S.d.N.); (L.C.M.); (S.P.d.S.)
| | - Ana Cecília Ribeiro Cruz
- Seção de Arbovirologia e Febres Hemorrágicas, Instituto Evandro Chagas, Secretaria de Vigilância e Saúde, Ministério da Saúde, Ananindeua, PA 67030-000, Brazil; (J.P.N.N.); (E.V.P.d.S.); (G.J.G.P.); (B.L.S.d.N.); (L.C.M.); (S.P.d.S.)
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36
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Azevedo BP, Farias PCS, Pastor AF, Davi CCM, Neco HVPDC, Lima RED, Acioli-Santos B. AAIDO1Variant Genotype (G2431A, rs3739319) Is Associated with Severe Dengue Risk Development in a DEN-3 Brazilian Cohort. Viral Immunol 2019; 32:296-301. [DOI: 10.1089/vim.2018.0149] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Affiliation(s)
| | - Pablo Cantalice S. Farias
- Department of Virology, Aggeu Magalhães Institute, Oswaldo Cruz Foundation (FIOCRUZ). Recife/PE, Brazil
| | - André Filipe Pastor
- Institute of Education, Science, and Technology of Sertão Pernambucano (IFSertão-PE), Floresta, Pernambuco, Brazil
| | | | | | - Raul Emídio de Lima
- Department of Virology, Aggeu Magalhães Institute, Oswaldo Cruz Foundation (FIOCRUZ). Recife/PE, Brazil
| | - Bartolomeu Acioli-Santos
- Department of Virology, Aggeu Magalhães Institute, Oswaldo Cruz Foundation (FIOCRUZ). Recife/PE, Brazil
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37
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Araújo PA, Freitas MO, Chiang JO, Silva FA, Chagas LL, Casseb SM, Silva SP, Nunes-Neto JP, Rosa-Júnior JW, Nascimento BS, Hernández LA, Paz TB, Barros LL, Silva EP, Azevedo RS, Martins LC, Ferreira MS, Vasconcelos PF. Investigation about the Occurrence of Transmission Cycles of Arbovirus in the Tropical Forest, Amazon Region. Viruses 2019; 11:E774. [PMID: 31443500 PMCID: PMC6784179 DOI: 10.3390/v11090774] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Revised: 07/18/2019] [Accepted: 07/20/2019] [Indexed: 12/30/2022] Open
Abstract
Because of its ecological characteristics, the Caxiuanã National Forest (FLONA) is a potential area of arbovirus circulation. The present study aimed to investigate the occurrence of arbovirus transmission cycles at FLONA de Caxiuanã. Five field trips were performed to capture mosquitoes and sylvatic vertebrates. For these vertebrates, we attempted viral isolation by cell monolayer inoculation from blood, and hemagglutination inhibition and further seroneutralization assays from sera. For mosquitoes, we performed tests of viral genome detection. A total of 338 vertebrates were captured, and the greatest representative was birds (251/74.26%). A total of 16,725 mosquitoes were captured, distributed among 56 species. There were no viruses isolated by newborn mouse inoculation. Among birds, antibodies against Ilheus virus were the most prevalent. Catu virus, Caraparu virus, and Mucambo virus were the most prevalent among mammals and reptiles. Fragments of Mucambo virus, Ilheus virus, Bussuquara virus, and Rocio virus genome were detected in a pool of mosquito samples. These results of the study suggest the occurrence of arbovirus transmission cycles in the FLONA of Caxiuanã. The proximity of human populations with elements, involved in transmission cycles, makes surveillance necessary in this population to avoid dispersion of arboviruses to naïve locations.
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Affiliation(s)
- Pedro A Araújo
- Institute of Biological Sciences, Federal University of Pará, Belém, PA 66075-110, Brazil.
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Ananindeua, PA 67030-000, Brazil.
| | - Maria O Freitas
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Ananindeua, PA 67030-000, Brazil
| | - Jannifer Oliveira Chiang
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Ananindeua, PA 67030-000, Brazil
| | - Franko Arruda Silva
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Ananindeua, PA 67030-000, Brazil
| | - Liliane Leal Chagas
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Ananindeua, PA 67030-000, Brazil
| | - Samir Mansour Casseb
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Ananindeua, PA 67030-000, Brazil
| | - Sandro Patroca Silva
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Ananindeua, PA 67030-000, Brazil
| | - Joaquim Pinto Nunes-Neto
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Ananindeua, PA 67030-000, Brazil
| | - José Wilson Rosa-Júnior
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Ananindeua, PA 67030-000, Brazil
| | - Bruna Sena Nascimento
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Ananindeua, PA 67030-000, Brazil
| | - Leonardo Almeida Hernández
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Ananindeua, PA 67030-000, Brazil
| | - Thito Bezerra Paz
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Ananindeua, PA 67030-000, Brazil
| | - Landeson L Barros
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Ananindeua, PA 67030-000, Brazil
| | - Eliana P Silva
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Ananindeua, PA 67030-000, Brazil
| | - Raimunda S Azevedo
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Ananindeua, PA 67030-000, Brazil
| | - Lívia C Martins
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Ananindeua, PA 67030-000, Brazil
| | - Milene S Ferreira
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Ananindeua, PA 67030-000, Brazil
| | - Pedro F Vasconcelos
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Ananindeua, PA 67030-000, Brazil
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Gonçalves BDS, Nogueira RMR, Bispo de Filippis AM, Horta MAP. Factors predicting the severity of dengue in patients with warning signs in Rio de Janeiro, Brazil (1986–2012). Trans R Soc Trop Med Hyg 2019; 113:670-677. [DOI: 10.1093/trstmh/trz066] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Revised: 05/29/2019] [Accepted: 06/25/2019] [Indexed: 01/15/2023] Open
Abstract
AbstractBackgroundSince 1981, >12 million cases of dengue have been reported in Brazil. Early prediction of severe dengue with no warning signs is crucial to avoid progression to severe dengue. Here we aimed to identify early markers of dengue severity and characterize dengue infection in patients in Rio de Janeiro.MethodsWe evaluated early severity markers, serotypes, infection status, number of days of illness and viral loads associated with dengue fever in patients from Rio de Janeiro, Brazil through an observational retrospective study (1986–2012). We compared dengue without warning signs and dengue with warning signs/severe dengue (DWWS/SD). Infection status was classified by enzyme-linked immunosorbent assay and viraemia was quantified by quantitative real-time reverse transcription polymerase chain reaction.ResultsThe presence of DWWS/ SD was significantly associated with younger age; patients 13–19 y of age had a significantly greater chance of presenting warning signs. Dengue virus type 3 (DENV3) was more likely to induce DWWS/SD, which was more frequent on days 4–5 of illness.ConclusionsDENV3, 4–5 d of illness and 13–19 y of age were early biomarkers of dengue severity. To our knowledge, this was the first study to analyse the characteristics of dengue severity in the state of Rio de Janeiro over 27 y of epidemics since the introduction of DENV.
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Affiliation(s)
- Bianca De Santis Gonçalves
- Flavivirus Laboratory, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Av Brasil, 4365, Manguinhos, Rio de Janeiro, RJ, Brazil
| | - Rita Maria Ribeiro Nogueira
- Flavivirus Laboratory, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Av Brasil, 4365, Manguinhos, Rio de Janeiro, RJ, Brazil
| | - Ana Maria Bispo de Filippis
- Flavivirus Laboratory, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Av Brasil, 4365, Manguinhos, Rio de Janeiro, RJ, Brazil
| | - Marco Aurélio Pereira Horta
- Flavivirus Laboratory, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Av Brasil, 4365, Manguinhos, Rio de Janeiro, RJ, Brazil
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Almeida MABD, Santos ED, Cardoso JDC, Noll CA, Lima MDM, Silva FDAE, Ferreira MS, Martins LC, Vasconcelos PFDC, Bicca-Marques JC. Detection of antibodies against Icoaraci, Ilhéus, and Saint Louis Encephalitis arboviruses during yellow fever monitoring surveillance in non-human primates (Alouatta caraya) in southern Brazil. J Med Primatol 2019; 48:211-217. [PMID: 31032984 DOI: 10.1111/jmp.12417] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Revised: 03/14/2019] [Accepted: 04/04/2019] [Indexed: 11/30/2022]
Abstract
BACKGROUND Free-ranging non-human primates (NHPs) can host a variety of pathogenic microorganisms, such as arboviruses, which include the yellow fever virus (YFV). This study aimed to detect the circulation of YF and other arboviruses in three wild Alouatta caraya populations in forests in southern Brazil. METHODS We collected 40 blood and serum samples from 26 monkeys captured/recaptured up to four times from 2014 to 2016, searching for evidence of arboviruses by virus isolation, PCR, and neutralization tests. RESULTS Viral isolation and genome detection were negative; however, we detected neutralizing antibodies against the Saint Louis, Ilhéus, and Icoaraci viruses in three NHPs. CONCLUSIONS Saint Louis Encephalitis, Ilhéus, and Icoaraci viruses circulated recently in the region. Future studies should investigate the role of NHPs, other vertebrate hosts and wild vectors in the region's arbovirus circulation and the potential risks of the arboviruses to wildlife, domestic animals, and humans.
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Affiliation(s)
- Marco Antonio Barreto de Almeida
- Centro Estadual de Vigilância em Saúde, Secretaria da Saúde do Estado do Rio Grande do Sul, Porto Alegre, Brazil.,Escola de Ciências, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Brazil
| | - Edmilson Dos Santos
- Centro Estadual de Vigilância em Saúde, Secretaria da Saúde do Estado do Rio Grande do Sul, Porto Alegre, Brazil
| | - Jáder da Cruz Cardoso
- Centro Estadual de Vigilância em Saúde, Secretaria da Saúde do Estado do Rio Grande do Sul, Porto Alegre, Brazil
| | - Carlos Alberto Noll
- 17ª Coordenadoria Regional de Saúde, Secretaria da Saúde do Estado do Rio Grande do Sul, Ijuí, Brazil
| | - Marcelo de Moura Lima
- 17ª Coordenadoria Regional de Saúde, Secretaria da Saúde do Estado do Rio Grande do Sul, Ijuí, Brazil
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40
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Epizootics due to Yellow Fever Virus in São Paulo State, Brazil: viral dissemination to new areas (2016-2017). Sci Rep 2019; 9:5474. [PMID: 30940867 PMCID: PMC6445104 DOI: 10.1038/s41598-019-41950-3] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Accepted: 03/21/2019] [Indexed: 11/23/2022] Open
Abstract
Beginning in late 2016 Brazil faced the worst outbreak of Yellow Fever in recent decades, mainly located in southeastern rural regions of the country. In the present study we characterize the Yellow Fever Virus (YFV) associated with this outbreak in São Paulo State, Brazil. Blood or tissues collected from 430 dead monkeys and 1030 pools containing a total of 5,518 mosquitoes were tested for YFV by quantitative RT-PCR, immunohistochemistry (IHC) and indirect immunofluorescence. A total of 67 monkeys were YFV-positive and 3 pools yielded YFV following culture in a C6/36 cell line. Analysis of five nearly full length genomes of YFV from collected samples was consistent with evidence that the virus associated with the São Paulo outbreak originated in Minas Gerais. The phylogenetic analysis also showed that strains involved in the 2016–2017 outbreak in distinct Brazilian states (i.e., Minas Gerais, Rio de Janeiro, Espirito Santo) intermingled in maximum-likelihood and Bayesian trees. Conversely, the strains detected in São Paulo formed a monophyletic cluster, suggesting that they were local-adapted. The finding of YFV by RT-PCR in five Callithrix monkeys who were all YFV-negative by histopathology or immunohistochemistry suggests that this YFV lineage circulating in Sao Paulo is associated with different outcomes in Callithrix when compared to other monkeys.
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41
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Austin Suthanthiraraj PP, Sen AK. Localized surface plasmon resonance (LSPR) biosensor based on thermally annealed silver nanostructures with on-chip blood-plasma separation for the detection of dengue non-structural protein NS1 antigen. Biosens Bioelectron 2019; 132:38-46. [PMID: 30851494 DOI: 10.1016/j.bios.2019.02.036] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Revised: 02/05/2019] [Accepted: 02/15/2019] [Indexed: 12/29/2022]
Abstract
Early diagnosis of dengue biomarkers by employing a technology that is less labor- and time-intensive and offers higher sensitivity and lower limits of detection would find great significance in the developing world. Here, we report the development of a biosensor that exploits the localized surface plasmon resonance (LSPR) effect of silver nanostructures, created via thermal annealing of thin metal film, to detect dengue NS1 antigen, which appears as early as the onset of infection. The biosensor integrates membrane-based blood-plasma separation to develop lab-on-chip device that facilitates rapid diagnosis (within 30 min) of dengue NS1 antigen from a small volume (10 µL) of whole blood. The refractive index (RI) sensitivity of the LSPR biosensor was verified by using aqueous glycerol (0-100 wt%) which showed that it is sufficiently sensitive to detect 10-3 change in RI, which is comparable to that observed with protein-protein interaction. The RI sensitivity was utilized to demonstrate protein binding by using bovine serum albumin and detection of antibody-antigen immune reaction by binding human chorionic gonadotropin antigen to immunoglobulin antibody immobilized in our LSPR biosensor. Next, we demonstrated the detection of NS1 in plasma obtained via centrifugation and in plasma separated on-chip. From 10 µL of whole blood spiked with NS1 antigen, our biosensor reliably detects 0.06 µg/mL of NS1, which lies within the clinical limit observed during the first seven days of infection, with a sensitivity of 9 nm/(µg/mL). These results confirm that the proposed LSPR biosensor can potentially be used in point-of-care dengue diagnostics.
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Affiliation(s)
| | - Ashis Kumar Sen
- Department of Mechanical Engineering, Indian Institute of Technology Madras, Chennai 600036, India.
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42
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Genetic Determinants of the Re-Emergence of Arboviral Diseases. Viruses 2019; 11:v11020150. [PMID: 30759739 PMCID: PMC6410223 DOI: 10.3390/v11020150] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Revised: 02/03/2019] [Accepted: 02/06/2019] [Indexed: 01/06/2023] Open
Abstract
Mosquito-borne diseases constitute a large portion of infectious diseases, causing more than 700,000 deaths annually. Mosquito-transmitted viruses, such as yellow fever, dengue, West Nile, chikungunya, and Zika viruses, have re-emerged recently and remain a public health threat worldwide. Global climate change, rapid urbanization, burgeoning international travel, expansion of mosquito populations, vector competence, and host and viral genetics may all together contribute to the re-emergence of arboviruses. In this brief review, we summarize the host and viral genetic determinants that may enhance infectivity in the host, viral fitness in mosquitoes and viral transmission by mosquitoes.
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Gonçalves BDS, Horta MAP, Acero PHC, Bochner R, Queiroz Lima MDR, de Araújo ES, Sampaio SA, Nogueira RMR, de Filippis AMB. Dynamics of nonstructural glycoprotein-1 in dengue patients presenting with different clinical manifestations from 1986 to 2012 in Rio de Janeiro, Brazil. J Med Virol 2018; 91:555-563. [DOI: 10.1002/jmv.25356] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Accepted: 11/06/2018] [Indexed: 01/12/2023]
Affiliation(s)
| | | | | | - Rosany Bochner
- Laboratory of Scientific and Technological Information in Health; Institute of Communication and Scientific and Technological Information in Health/ FIOCRUZ; Rio de Janeiro Brazil
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Cholleti H, Berg M, Hayer J, Blomström AL. Vector-borne viruses and their detection by viral metagenomics. Infect Ecol Epidemiol 2018. [DOI: 10.1080/20008686.2018.1553465] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Affiliation(s)
- Harindranath Cholleti
- Section of Virology, Department of Biomedical Sciences and Veterinary Public Health, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Mikael Berg
- Section of Virology, Department of Biomedical Sciences and Veterinary Public Health, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Juliette Hayer
- SLU Global Bioinformatics Centre, Department of Animal Breeding and Genetics, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Anne-Lie Blomström
- Section of Virology, Department of Biomedical Sciences and Veterinary Public Health, Swedish University of Agricultural Sciences, Uppsala, Sweden
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45
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de Bruycker-Nogueira F, Souza TMA, Chouin-Carneiro T, da Costa Faria NR, Santos JB, Torres MC, Ramalho ILC, de Aguiar SF, Nogueira RMR, de Filippis AMB, Dos Santos FB. DENV-1 Genotype V in Brazil: Spatiotemporal dispersion pattern reveals continuous co-circulation of distinct lineages until 2016. Sci Rep 2018; 8:17160. [PMID: 30464188 PMCID: PMC6249214 DOI: 10.1038/s41598-018-35622-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Accepted: 11/08/2018] [Indexed: 02/03/2023] Open
Abstract
In Brazil, DENV-1 introduced in the 80’s, remained the prevalent serotype from 2012 to 2016. After its re-emergence in the country in 2009, the co-circulation of different viral lineages was identified, however, its transmission dynamics afterwards, was not fully characterized. In this study, we performed the continuous molecular surveillance after the reemergence period (2012 to 2016), covering the 30 years of circulation of DENV-1 in Brazil. Phylogenetic analysis allowed confirmation of the continued presence of genotype V, as well as three distinct co-circulating lineages. The molecular characterization of the E gene presented two new amino acid substitutions previously unidentified in the country. Phylogeographic analysis has shown that a large flow of migrations has occurred between Brazil and Argentina in the last 10 years.
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Affiliation(s)
| | | | - Thaís Chouin-Carneiro
- Viral Immunology Laboratory, Oswaldo Cruz Institute - FIOCRUZ, Rio de Janeiro, Brazil
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46
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de Bruycker‐Nogueira F, Faria NRDC, Nunes PCG, Nogueira RMR, de Filippis AMB, dos Santos FB. First detection and molecular characterization of a DENV-1/DENV-4 co-infection during an epidemic in Rio de Janeiro, Brazil. Clin Case Rep 2018; 6:2075-2080. [PMID: 30455894 PMCID: PMC6230646 DOI: 10.1002/ccr3.1750] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Revised: 07/11/2018] [Accepted: 07/13/2018] [Indexed: 11/29/2022] Open
Abstract
In the 80s, dengue viruses type 1 and 4 (DENV-1 and 4) were isolated in North region of Brazil. However, it was only after the DENV-1 introduction in the state of Rio de Janeiro (RJ) in mid-1980s, that dengue became a nationwide public health problem. In 2009, this serotype re-emerged causing an explosive epidemic in the country. DENV-4 was first detected in RJ in 2011 and in 2012, and DENV-1 and 4 were co-circulating and responsible for a high number of cases notifications. Here, we describe the detection and molecular characterization of a DENV-1/4 co-infection in sample of 2012 in RJ.
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47
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Ramalho ILC, Araújo FMDC, Cavalcanti LPDG, Braga DNM, Perdigão ACB, Santos FBD, Nogueira FDB, Escóssia KNFD, Guedes MIF. Dengue 4 in Ceará, Brazil: characterisation of epidemiological and laboratorial aspects and causes of death during the first epidemic in the state. Mem Inst Oswaldo Cruz 2018; 113:e180320. [PMID: 30365646 PMCID: PMC6193373 DOI: 10.1590/0074-02760180320] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Accepted: 09/11/2018] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND The first dengue cases in Brazil with laboratory confirmation occurred in the northern region of the country, with the isolation of two serotypes, dengue virus 1 (DENV-1) and DENV-4. In Ceará, the introduction of DENV-4 was reported during a DENV-1 epidemic in 2011, with only two isolations. OBJECTIVES The aim of this study was to characterise the first DENV-4 epidemic in the state of Ceará, Brazil. METHODS The study population was composed of patients with suspected dengue that were reported to health care units from January to December 2012. The laboratory confirmation of infection was made by viral isolation, reverse transcription polymerase chain reaction (RT-PCR), AgNS1, immunohistochemistry and IgM enzyme-linked immunosorbent assay (ELISA). MAIN CONCLUSIONS In the study year, 72,211 suspected dengue cases were reported and 51,865 of these cases (71.8%) were confirmed to be positive. Co-circulation of three serotypes, DENV-1, DENV-3 and DENV-4, was detected with a predominance of DENV-4 (95.3%). Most cases were not severe, but there were 44 fatal outcomes. DENV-4 Genotype II was identified for the first time in Ceará.
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Affiliation(s)
- Izabel Letícia Cavalcante Ramalho
- Laboratório Central de Saúde Pública, Setor de Virologia, Fortaleza, CE, Brasil.,Universidade Estadual do Ceará, Rede Nordeste de Biotecnologia, Fortaleza, CE, Brasil
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48
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Nunes PCG, de Filippis AMB, Lima MQDR, Faria NRDC, de Bruycker-Nogueira F, Santos JB, Heringer M, Chouin-Carneiro T, Couto-Lima D, de Santis Gonçalves B, Sampaio SA, de Araújo ESM, Sánchez-Arcila JC, dos Santos FB, Nogueira RMR. 30 years of dengue fatal cases in Brazil: a laboratorial-based investigation of 1047 cases. BMC Infect Dis 2018; 18:346. [PMID: 30053833 PMCID: PMC6062978 DOI: 10.1186/s12879-018-3255-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2017] [Accepted: 07/13/2018] [Indexed: 01/24/2023] Open
Abstract
BACKGROUND Dengue viruses (DENV) have emerged and reemerged in Brazil in the past 30 years causing explosive epidemics. The disease may range from clinically asymptomatic infections to severe and fatal outcomes. We aimed to describe the epidemiological, clinical and laboratorial aspects of the dengue fatal cases received by a Regional Reference Laboratory, Brazil in 30 years. METHODS A total of 1047 suspected fatal dengue cases were received from 1986 to 2015 and analyzed in the Laboratory of Flavivirus, FIOCRUZ. Suspected cases were submitted to viral detection, serological and molecular methods for cases confirmation. Influence of gender, age, serotype and type of infection (primary/secondary) on death outcome, as well the interactions between serotype and age or infection and age and type of infection were also studied. RESULTS A total of 359 cases (34.2%) were confirmed and DENV-1 (11.1%), DENV-2 (43.9%), DENV-3 (32.8%) and DENV-4 (13.7%) were detected. Overall, fatal cases occurred more often in primary infections (59.3%, p = 0.001). However, in 2008, fatal cases were mainly associated to secondary infections (p = 0.003). In 2008 and 2011, deaths were more frequent on children and those infected by DENV-2 presented a higher risk for fatal outcome. Moreover, children with secondary infections had a 4-fold higher risk for death. CONCLUSIONS Dengue is a multifactorial disease and, factors such as viral strain/serotype, occurrence of secondary infections and co-morbidities may lead to a severe outcome. However, the high dengue incidence and transmission during epidemics, such as those observed in Brazil may overwhelm and collapse the public health services, potentially impacting on increased disease severity and mortality.
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Affiliation(s)
- Priscila Conrado Guerra Nunes
- Viral Immunology Laboratory (LIV), Oswaldo Cruz Institute, IOC, FIOCRUZ, Avenida Brasil, 4365. Manguinhos, Rio de Janeiro, Brazil
- Flavivirus Laboratory (LABFLA), Oswaldo Cruz Institute- FIOCRUZ, Avenida Brasil, 4365. Manguinhos, Rio de Janeiro, Brazil
| | - Ana Maria Bispo de Filippis
- Flavivirus Laboratory (LABFLA), Oswaldo Cruz Institute- FIOCRUZ, Avenida Brasil, 4365. Manguinhos, Rio de Janeiro, Brazil
| | - Monique Queiroz da Rocha Lima
- Viral Immunology Laboratory (LIV), Oswaldo Cruz Institute, IOC, FIOCRUZ, Avenida Brasil, 4365. Manguinhos, Rio de Janeiro, Brazil
| | - Nieli Rodrigues da Costa Faria
- Flavivirus Laboratory (LABFLA), Oswaldo Cruz Institute- FIOCRUZ, Avenida Brasil, 4365. Manguinhos, Rio de Janeiro, Brazil
| | - Fernanda de Bruycker-Nogueira
- Viral Immunology Laboratory (LIV), Oswaldo Cruz Institute, IOC, FIOCRUZ, Avenida Brasil, 4365. Manguinhos, Rio de Janeiro, Brazil
| | - Jaqueline Bastos Santos
- Flavivirus Laboratory (LABFLA), Oswaldo Cruz Institute- FIOCRUZ, Avenida Brasil, 4365. Manguinhos, Rio de Janeiro, Brazil
| | - Manoela Heringer
- Viral Immunology Laboratory (LIV), Oswaldo Cruz Institute, IOC, FIOCRUZ, Avenida Brasil, 4365. Manguinhos, Rio de Janeiro, Brazil
| | - Thaís Chouin-Carneiro
- Viral Immunology Laboratory (LIV), Oswaldo Cruz Institute, IOC, FIOCRUZ, Avenida Brasil, 4365. Manguinhos, Rio de Janeiro, Brazil
- Hematozoa Transmittors Mosquitoes Laboratory, Oswaldo Cruz Institute- FIOCRUZ, Avenida Brasil, 4365. Manguinhos, Rio de Janeiro, Brazil
| | - Dinair Couto-Lima
- Hematozoa Transmittors Mosquitoes Laboratory, Oswaldo Cruz Institute- FIOCRUZ, Avenida Brasil, 4365. Manguinhos, Rio de Janeiro, Brazil
| | - Bianca de Santis Gonçalves
- Flavivirus Laboratory (LABFLA), Oswaldo Cruz Institute- FIOCRUZ, Avenida Brasil, 4365. Manguinhos, Rio de Janeiro, Brazil
| | - Simone Alves Sampaio
- Flavivirus Laboratory (LABFLA), Oswaldo Cruz Institute- FIOCRUZ, Avenida Brasil, 4365. Manguinhos, Rio de Janeiro, Brazil
| | | | - Juan Camilo Sánchez-Arcila
- Viral Immunology Laboratory (LIV), Oswaldo Cruz Institute, IOC, FIOCRUZ, Avenida Brasil, 4365. Manguinhos, Rio de Janeiro, Brazil
| | - Flávia Barreto dos Santos
- Viral Immunology Laboratory (LIV), Oswaldo Cruz Institute, IOC, FIOCRUZ, Avenida Brasil, 4365. Manguinhos, Rio de Janeiro, Brazil
| | - Rita Maria Ribeiro Nogueira
- Flavivirus Laboratory (LABFLA), Oswaldo Cruz Institute- FIOCRUZ, Avenida Brasil, 4365. Manguinhos, Rio de Janeiro, Brazil
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Prado PS, Almeida Júnior JTD, Abreu LTD, Silva CG, Souza LDC, Gomes MC, Mendes LMT, Santos EMD, Romero GAS. Validation and reliability of the rapid diagnostic test 'SD Bioeasy Dengue Duo' for dengue diagnosis in Brazil: a phase III study. Mem Inst Oswaldo Cruz 2018; 113:e170433. [PMID: 29947711 PMCID: PMC6014722 DOI: 10.1590/0074-02760170433] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2017] [Accepted: 05/18/2018] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND The diagnosis of dengue is complex. Until recently, only specialised laboratories were able to confirm dengue infection. However, this has changed with the newly available immunochromatographic rapid tests. Early diagnosis is of great interest, and point-of-care rapid tests have been increasingly used in Brazil. Most of those tests have not undergone validation in the Brazilian population. In this context, we decided to evaluate a rapid test introduced in the Federal District (FD). OBJECTIVES To estimate the accuracy and reliability of the SD Bioeasy Dengue Duo rapid test and its components to detect dengue infections in a consecutive sample of symptomatic residents in the FD, Brazil. METHODS In total, 1353 venous blood samples were collected between 2013 and 2014. Two hundred and six positive samples (cases) and 246 negative samples (non cases) were required for sensitivity and specificity estimation, respectively; for agreement evaluation, we used 401 samples. The reference standard used was a composite of MAC-ELISA, virus isolation and real-time polymerase chain reaction (RT-qPCR). The evaluation was conducted prospectively under field conditions in the public health units of the FD. FINDINGS The results for the overall accuracy of the rapid test (NS1/IgM combined) showed 76% sensitivity and 98% specificity. The sensitivity for the NS1 component (67%) was better than that for the IgM component (35%). The positive likelihood ratio was 46, and the negative likelihood ratio was 0.24. The reliability of the test (NS1/IgM combined) demonstrated crude agreement of 98% (Kappa index 0.94). MAIN CONCLUSIONS The present phase III, large-scale validation study demonstrates that the rapid test SD Bioeasy Dengue Duo has moderate sensitivity (NS1/IgM combined) and high specificity. Therefore, the test is useful in confirming the diagnosis of dengue, but not enough to rule out the diagnosis. Our results also suggest that Dengue virus (DENV) viral load estimated through the RT-qPCR and antibody level measured through the MAC-ELISA could have had a direct influence on the accuracy of the rapid test.
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Affiliation(s)
- Paulo Sousa Prado
- Universidade de Brasília, Núcleo de Medicina Tropical, Brasília, DF, Brasil.,Laboratório Central de Saúde Pública, Brasília, DF, Brasil
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50
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Nunes PCG, Nogueira RMR, Heringer M, Chouin-Carneiro T, Damasceno Dos Santos Rodrigues C, de Filippis AMB, Lima MDRQ, Dos Santos FB. NS1 Antigenemia and Viraemia Load: Potential Markers of Progression to Dengue Fatal Outcome? Viruses 2018; 10:E326. [PMID: 29903980 PMCID: PMC6024368 DOI: 10.3390/v10060326] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2018] [Revised: 02/22/2018] [Accepted: 03/01/2018] [Indexed: 01/29/2023] Open
Abstract
Dengue is a worldwide problem characterized by a multifactorial pathogenesis. Considering the viral components, it is known that high viremia or high levels of the secreted nonstructural protein 1 (NS1) may be associated with a more severe disease. We aimed to characterize the NS1 antigenemia and viremia in dengue fatal and non-fatal cases, as potential markers of progression to a fatal outcome. NS1 antigenemia and viremia were determined in Brazilian dengue fatal cases (n = 40) and non-fatal cases (n = 40), representative of the four dengue virus (DENV) serotypes. Overall, the fatal cases presented higher NS1 levels and viremia. Moreover, the fatal cases from secondary infections showed significantly higher NS1 levels than the non-fatal ones. Here, irrespective of the disease outcome, DENV-1 cases presented higher NS1 levels than the other serotypes. However, DENV-2 and DENV-4 fatal cases had higher NS1 antigenemia than the non-fatal cases with the same serotype. The viremia in the fatal cases was higher than in the non-fatal ones, with DENV-3 and DENV-4 presenting higher viral loads. Viral components, such as NS1 and viral RNA, may be factors influencing the disease outcome. However, the host immune status, comorbidities, and access to adequate medical support cannot be ruled out as interfering in the disease outcome.
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Affiliation(s)
- Priscila Conrado Guerra Nunes
- Viral Immunology Laboratory (LIV), Oswaldo Cruz Institute-FIOCRUZ, Avenida Brasil, 4365. Manguinhos, Rio de Janeiro 21040-360, Brazil.
- Flavivirus Laboratory (LABFLA), Oswaldo Cruz Institute-FIOCRUZ, Avenida Brasil, 4365. Manguinhos, Rio de Janeiro 21040-360, Brazil.
| | - Rita Maria Ribeiro Nogueira
- Flavivirus Laboratory (LABFLA), Oswaldo Cruz Institute-FIOCRUZ, Avenida Brasil, 4365. Manguinhos, Rio de Janeiro 21040-360, Brazil.
| | - Manoela Heringer
- Viral Immunology Laboratory (LIV), Oswaldo Cruz Institute-FIOCRUZ, Avenida Brasil, 4365. Manguinhos, Rio de Janeiro 21040-360, Brazil.
| | - Thaís Chouin-Carneiro
- Viral Immunology Laboratory (LIV), Oswaldo Cruz Institute-FIOCRUZ, Avenida Brasil, 4365. Manguinhos, Rio de Janeiro 21040-360, Brazil.
- Hematozoa Transmittors Mosquitoes Laboratory, Oswaldo Cruz Institute, Rio de Janeiro 21040-360, Brazil.
| | | | - Ana Maria Bispo de Filippis
- Flavivirus Laboratory (LABFLA), Oswaldo Cruz Institute-FIOCRUZ, Avenida Brasil, 4365. Manguinhos, Rio de Janeiro 21040-360, Brazil.
| | - Monique da Rocha Queiroz Lima
- Viral Immunology Laboratory (LIV), Oswaldo Cruz Institute-FIOCRUZ, Avenida Brasil, 4365. Manguinhos, Rio de Janeiro 21040-360, Brazil.
| | - Flávia Barreto Dos Santos
- Viral Immunology Laboratory (LIV), Oswaldo Cruz Institute-FIOCRUZ, Avenida Brasil, 4365. Manguinhos, Rio de Janeiro 21040-360, Brazil.
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