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Hernández DL, Somma AT, Steuernagel A, Vieira TSWJ, Moore B, Reifur L, Montiani-Ferreira F, Pinto HA. A Molecular Phylogenetic Study of the Eye Fluke Philophthalmus lacrymosus (Trematoda: Philophthalmidae) Found in Larus dominicanus (Aves: Laridae) from Brazil. Acta Parasitol 2024; 69:1027-1034. [PMID: 37989828 DOI: 10.1007/s11686-023-00738-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Accepted: 10/17/2023] [Indexed: 11/23/2023]
Abstract
PURPOSE Species of the genus Philophthalmus are eye flukes with a complex taxonomy, which began to be improved with the help of molecular data only recently. However, most described species have never been placed into a phylogenetic context. In this study, eye flukes previously found on kelp gulls, Larus dominicanus, from Brazil and identified as Philophthalmus lacrymosus were subjected to molecular analysis. METHODS For the molecular analyses, we analyzed parasites found in six infected gulls (one worm per bird) collected from different municipalities of the state of Santa Catarina, Brazil. We carried out the amplification and sequencing of the partial region of the 28S and cox1 genes and the data obtained were compared with sequences available to philophthalmid species and subjected to phylogenetic analysis. RESULTS The isolates of P. lacrymosus from Brazil grouped in well-supported clades with five other species of Philophthalmus with sequences available for comparison. Interspecific divergences of 0.1-1.6% in 28S and 8.2-14.9% in cox1 were found in relation to other isolates of Philophthalmus spp. Two cox1 haplotypes differing in one nucleotide (0.1%) were found between the six eye flukes isolates in gulls from different localities. The Brazilian isolates grouped in a subclade with parasites identified as P. lacrymosus in Portugal; however, the molecular divergences found in cox1 (8.2-8.5%) strongly suggest that these isolates belong to different species. The phylogenetic trees obtained and the intergeneric divergences to species of the genera Cloacitrema and Parorchis did not support the validity of the genus Natterophthalmus, for which P. lacrymosus was proposed as the type species in the past. CONCLUSION As P. lacrymosus was described from Brazil, we recommend that this name be applied to the South American isolates and that the Portuguese isolates be provisionally considered as Philophthalmus sp., a probable cryptic species. Moreover, data obtained supports the previous morphology-based synonymizing between Natterophthalmus and Philophthalmus. Considering our results and most of previous reports of P. lacrymosus in South America, we suggest this species presents a marine life cycle.
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Affiliation(s)
- Danimar López Hernández
- Laboratório de Biologia de Trematoda, Department of Parasitology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, P.O. Box 486, Belo Horizonte, Minas Gerais, 31270-901, Brazil
| | - André Tavares Somma
- Department of Veterinary Medicine, Universidade Federal do Paraná, Curitiba, Brazil
| | - Adriane Steuernagel
- Unidade de Estabilização de Animais Marinhos de Penha, Universidade do Vale do Itajaí, Praia de Armação do Itapocorói, Penha, Brazil
| | | | - Bret Moore
- College of Veterinary Medicine, Department of Small Animal Clinical Sciences, University of Florida, Gainesville, FL, USA
| | - Larissa Reifur
- Departament of Basic Pathology, Universidade Federal do Paraná, Curitiba, Brazil
| | | | - Hudson Alves Pinto
- Laboratório de Biologia de Trematoda, Department of Parasitology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, P.O. Box 486, Belo Horizonte, Minas Gerais, 31270-901, Brazil.
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Cândido SL, de Assis Pereira N, de Oliveira Rosa Fonseca MJ, de Campos Pacheco R, Morgado TO, Colodel EM, Nakazato L, Dutra V, Vieira TSWJ, de Aguiar DM. Molecular detection and genetic characterization of Ehrlichia canis and Ehrlichia sp. in neotropical primates from Brazil. Ticks Tick Borne Dis 2023; 14:102179. [PMID: 36989601 DOI: 10.1016/j.ttbdis.2023.102179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 03/20/2023] [Accepted: 03/21/2023] [Indexed: 03/29/2023]
Abstract
The Anaplasmataceae family includes obligate, arthropod-transmitted intracellular bacteria that can be zoonotic and potentially fatal. Studies focusing on the interaction between neotropical primates and the agents of this family are scarce. The present study aimed to identify agents of the Anaplasmataceae family in the whole blood of free-living and captive neotropical primates in the State of Mato Grosso, Central-West Brazil. Thirty-eight samples of six nonhuman primate (NHP) species were collected in seven municipalities and analysed through polymerase chain reaction (PCR), nucleotide sequencing, and phylogenetic analysis of the dsb, groEL, 16S rRNA, and gltA genes. DNA fragments similar to those of Ehrlichia canis were detected in Sapajus apella and Ehrlichia chaffeensis from Mico melanurus. The sequences generated in this study and homologous sequences retrieved from GenBank® were used for phylogenetic analyses to characterize the Ehrlichial agents detected in NHPs. The agents were then grouped into clades corresponding to different isolates from the NHP species. In addition, an Anaplasma sp. closely related to Anaplasma marginale was identified in two S. apella individuals. These findings shed light on the susceptibility of neotropical NHPs to Anaplasmataceae agents. These bacteria are known to be transmitted by ticks, which can also serve as possible sources of infection for other animals, including humans.
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Affiliation(s)
- Stéfhano Luís Cândido
- Veterinary Microbiology and Molecular Biology Laboratory, Faculty of Veterinary Medicine - FAVET, Veterinary Hospital - HOVET, Federal University of Mato Grosso - UFMT, 2367 Fernando Correa Avenue, Cuiabá, MT 78060-900, Brazil
| | - Nathalia de Assis Pereira
- Virology and Rickettsiosis Laboratory, HOVET, FAVET, UFMT, 2367 Fernando Correa Avenue, Cuiabá, MT 78060-900, Brazil
| | | | - Richard de Campos Pacheco
- Laboratory of Veterinary Parasitology and Parasitic Diseases Veterinary Parasitology of Domestic and Wild Animals, HOVET, FAVET, UFMT, 2367 Fernando Correa Avenue, Cuiabá, MT 78060-900, Brazil
| | - Thais Oliveira Morgado
- Wild Animals Sector, HOVET, FAVET, UFMT, 2367 Fernando Correa Avenue, Cuiabá, MT 78060-900, Brazil
| | - Edson Moleta Colodel
- Veterinary Pathology Laboratory, HOVET, FAVET, UFMT, 2367 Fernando Correa Avenue, Cuiabá, MT 78060-900, Brazil
| | - Luciano Nakazato
- Veterinary Microbiology and Molecular Biology Laboratory, Faculty of Veterinary Medicine - FAVET, Veterinary Hospital - HOVET, Federal University of Mato Grosso - UFMT, 2367 Fernando Correa Avenue, Cuiabá, MT 78060-900, Brazil
| | - Valéria Dutra
- Veterinary Microbiology and Molecular Biology Laboratory, Faculty of Veterinary Medicine - FAVET, Veterinary Hospital - HOVET, Federal University of Mato Grosso - UFMT, 2367 Fernando Correa Avenue, Cuiabá, MT 78060-900, Brazil
| | - Thállitha Samih Wischral Jayme Vieira
- Vector-Borne Diseases Laboratory, Department of Veterinary Medicine, Federal University of Paraná - UFPR, 1540 Funcionários Street, Curitiba, PR, 80035-050, Brazil
| | - Daniel Moura de Aguiar
- Virology and Rickettsiosis Laboratory, HOVET, FAVET, UFMT, 2367 Fernando Correa Avenue, Cuiabá, MT 78060-900, Brazil.
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Kamani J, Vieira TSWJ, da Costa Vieira RF, Shekaro A, Nahum-Biala Y, Olubade T, Abasiama MS, Gajibo UA, Bukar L, Shand M, Harrus S, Baneth G. Molecular detection of Theileria annulata, Theileria mutans and Theileria velifera but no evidence of Theileria parva infected or vaccinated cattle in Nigeria despite extensive transboundary migrations. Vet Parasitol Reg Stud Reports 2023; 41:100887. [PMID: 37208076 DOI: 10.1016/j.vprsr.2023.100887] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 04/11/2023] [Accepted: 05/03/2023] [Indexed: 05/21/2023]
Abstract
The extensive livestock management system predominant in Nigeria necessitates active disease surveillance for the early detection and prompt control of transboundary animal diseases. Theileriae are obligate intracellular protozoa which infect both wild and domestic bovidae throughout much of the world causing East Coast Fever (Theileria parva), Tropical or Mediterranean theileriosis (Theileria annulata) or benign theileriosis (Theileria mutans; Theileria velifera). This study aimed to detect and characterize Theileria spp. infecting cattle in Nigeria using conventional PCR and sequencing approach. Five hundred and twenty-two DNA samples obtained from different cattle blood samples were subjected to PCR targeting the 18S rRNA gene of piroplasmida and specifically, the p104 kDa and Tp1 genes for the evidence of infection or vaccination respectively, with T. parva. A total of 269 out of 522 (51.5%) of the cattle tested PCR- positive for DNA of piroplasmida. Nucleotide sequence and phylogenetic analyses showed that the cattle were infected with T. annulata, T. mutans and T. velifera. Piroplasmida DNA was associated with sex (ꭓ2 = 7.2; p = 0.007), breed (ꭓ2 = 115; p = 0.000002) of animals and the state where the samples were collected (ꭓ2 = 78.8; p = 0.000002). None of the samples tested positive for T. parva DNA or showed evidence of vaccination (Tp1 gene). This is the first report on the molecular detection and characterization of T. annulata in the blood of cattle from Nigeria. Continuous surveillance of Nigerian cattle for East Coast Fever (ECF) is encouraged considering the recent report of the disease in cattle in the neighboring country, Cameroon, where unregulated transboundary cattle movement into Nigeria has been observed.
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Affiliation(s)
- Joshua Kamani
- National Veterinary Research Institute (NVRI), PMB 01 Vom, Plateau State, Nigeria.
| | | | - Rafael Felipe da Costa Vieira
- Vector-borne Diseases Laboratory, Department of Veterinary Medicine, Universidade Federal do Parana, Brazil; Department of Public Health Sciences, University of North Carolina at Charlotte, Charlotte, USA; Center for Computational Intelligence to Predict Health and Environmental Risks (CIPHER), University of North Carolina at Charlotte, Charlotte, USA
| | - Audu Shekaro
- National Veterinary Research Institute (NVRI), PMB 01 Vom, Plateau State, Nigeria
| | - Yaarit Nahum-Biala
- Koret School of Veterinary Medicine, The Hebrew University of Jerusalem, Rehovot, Israel
| | - Toyin Olubade
- National Veterinary Research Institute (NVRI), PMB 01 Vom, Plateau State, Nigeria
| | | | - Umar A Gajibo
- National Veterinary Research Institute (NVRI), PMB 01 Vom, Plateau State, Nigeria
| | - Laminu Bukar
- National Veterinary Research Institute (NVRI), PMB 01 Vom, Plateau State, Nigeria
| | - Mike Shand
- School of Geographical & Earth Sciences, University of Glasgow, UK
| | - Shimon Harrus
- Koret School of Veterinary Medicine, The Hebrew University of Jerusalem, Rehovot, Israel
| | - Gad Baneth
- Koret School of Veterinary Medicine, The Hebrew University of Jerusalem, Rehovot, Israel
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Orozco AMO, Bento LD, Souto PC, Girardi FM, Nogueira BCF, Yamatogi RS, Campos AK, Cray C, Montiani-Ferreira F, Collere FCM, Vieira TSWJ, Vieira RFDC, da Fonseca LA. ' Candidatus Mycoplasma Haemoalbiventris' and Tick-Borne Pathogens in Black-Eared Opossum ( Didelphis aurita) from Southeastern Brazil. Microorganisms 2022; 10:microorganisms10101955. [PMID: 36296231 PMCID: PMC9611284 DOI: 10.3390/microorganisms10101955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 09/26/2022] [Accepted: 09/28/2022] [Indexed: 01/25/2023] Open
Abstract
The black-eared opossum (Didelphis aurita) is a South American synanthropic marsupial. The presence of opossums in domestic spaces is relevant in the One-Health context since they are hosts of pathogens and ectoparasites that may affect the health of domestic animals and humans. In this study, we aim to determine the occurrence of hemoplasmas and selected tick-borne pathogens in free-ranging black-eared opossums, along with their molecular characterization, hematological and biochemical evaluation and factors associated with infection, in the municipality of Viçosa, State of Minas Gerais, southeastern Brazil. Thirty black-eared opossums were trapped between March 2021 and June 2022. Ectoparasites were collected. Hematological and biochemical analyses were performed. DNA from EDTA-blood samples were analyzed by PCR and qPCR assays. By molecular analyses, 'Candidatus Mycoplasma haemoalbiventris' was the most prevalent hemoparasite (73.3%), followed by Hepatozoon sp. (22.2%). Significant differences were observed in the number of platelets, and in the concentration of protein and globulins in the animals infected by 'Ca. M. haemoalbiventris' when compared with the negative group. This is the first report of 'Ca. M. haemoalbiventris' infection in D. aurita.
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Affiliation(s)
| | - Lucas Drumond Bento
- Veterinary Departament, Universidade Federal de Viçosa, Viçosa 36570-900, Brazil
| | | | | | | | | | | | - Carolyn Cray
- Division of Comparative Pathology, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | | | - Flávia Carolina Meira Collere
- Vector-Borne Diseases Laboratory, Department of Veterinary Medicine, Universidade Federal do Paraná, Curitiba 80035-050, Brazil
| | | | - Rafael Felipe da Costa Vieira
- Vector-Borne Diseases Laboratory, Department of Veterinary Medicine, Universidade Federal do Paraná, Curitiba 80035-050, Brazil
- Global One Health initiative (GOHi), The Ohio State University, Columbus, OH 43210, USA
- Correspondence: (R.F.d.C.V.); (L.A.d.F.)
| | - Leandro Abreu da Fonseca
- Veterinary Departament, Universidade Federal de Viçosa, Viçosa 36570-900, Brazil
- Correspondence: (R.F.d.C.V.); (L.A.d.F.)
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Oliveira RPAD, Collere FCM, Ferrari LDR, Coradi VDS, Soares NDA, Leandro ADS, Oliveira WFD, Galvão SR, Kafka R, Delai RM, Martini R, Saldanha A, Santos LPD, Cubas ZS, Lange RR, Vieira TSWJ, Vieira RFDC. 'Candidatus Mycoplasma haemoalbiventris' and tick-borne pathogens screening in white-eared opossums (Didelphis albiventris) from Curitiba and Foz do Iguaçu Cities, Paraná State, southern Brazil. Rev Bras Parasitol Vet 2021; 30:e009721. [PMID: 34495043 DOI: 10.1590/s1984-29612021072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Accepted: 07/13/2021] [Indexed: 11/22/2022]
Abstract
Hemoplasmas are epierythrocytic bacteria that infect mammals. 'Candidatus Mycoplasma haemoalbiventris' was detected in white-eared opossums (Didelphis albiventris) from southern and central-western Brazil. The present study aimed at: i) screening opossums for tick-borne (TBP) pathogens (Piroplasmida and Anaplasmataceae) and ii) detecting and characterizing hemoplasma species infecting opossums from Curitiba and Foz do Iguaçu cities in the Paraná State, southern Brazil. Thirty blood samples from white-eared opossums were evaluated by PCR assays. Animals were not infested by ectoparasites. The mammalian endogenous gapdh gene was consistently amplified in all samples. All opossums tested negative for Theileria/Babesia spp. and Ehrlichia/Anaplasma spp. by PCR based on 18S rRNA and 16S rRNA genes, respectively. A genus-specific PCR assay based on the 16S rRNA gene of hemoplasmas showed that three/13 (23.08%; CI 95%: 8.18-50.26%) opossums from Foz do Iguaçu were positive for hemotropic Mycoplasma sp. All opossums from Curitiba tested negative for hemoplasmas. Sequencing of both the 16S and 23S rRNA genes revealed that the animals were infected by 'Ca. M. haemoalbiventris'. Although 'Ca. M. haemoalbiventris' is prevalent in opossums in Brazil, clinical signs associated with its infection and its putative vectors remain unknown.
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Affiliation(s)
| | - Flávia Carolina Meira Collere
- Laboratório de Doenças Transmitidas por Vetores, Departamento de Medicina Veterinária, Universidade Federal do Paraná - UFPR, Curitiba, PR, Brasil
| | - Larissa Dantas Roeder Ferrari
- Laboratório de Doenças Transmitidas por Vetores, Departamento de Medicina Veterinária, Universidade Federal do Paraná - UFPR, Curitiba, PR, Brasil
| | - Vanessa Dos Santos Coradi
- Laboratório de Doenças Transmitidas por Vetores, Departamento de Medicina Veterinária, Universidade Federal do Paraná - UFPR, Curitiba, PR, Brasil
| | - Nathália de Albuquerque Soares
- Laboratório de Doenças Transmitidas por Vetores, Departamento de Medicina Veterinária, Universidade Federal do Paraná - UFPR, Curitiba, PR, Brasil
| | - André de Souza Leandro
- Unidade de Vigilância em Zoonoses, Secretaria Municipal de Saúde, Foz do Iguaçu, PR, Brasil
| | | | - Sandro Roberto Galvão
- Unidade de Vigilância em Zoonoses, Secretaria Municipal de Saúde, Foz do Iguaçu, PR, Brasil
| | - Rosinei Kafka
- Unidade de Vigilância em Zoonoses, Secretaria Municipal de Saúde, Foz do Iguaçu, PR, Brasil
| | - Robson Michael Delai
- Laboratório de Saúde Única, Centro de Medicina Tropical das Três Fronteiras, Fundação Itaiguapy, Instituto de Ensino e Pesquisa, Foz do Iguaçu, PR, Brasil
| | - Rafaella Martini
- Departamento de Medicina Veterinária, Universidade Federal do Paraná - UFPR, Curitiba, PR, Brasil
| | - André Saldanha
- Laboratório de Doenças Transmitidas por Vetores, Departamento de Medicina Veterinária, Universidade Federal do Paraná - UFPR, Curitiba, PR, Brasil
| | - Leonardo Pereira Dos Santos
- Laboratório de Doenças Transmitidas por Vetores, Departamento de Medicina Veterinária, Universidade Federal do Paraná - UFPR, Curitiba, PR, Brasil
| | | | - Rogério Ribas Lange
- Departamento de Medicina Veterinária, Universidade Federal do Paraná - UFPR, Curitiba, PR, Brasil
| | | | - Rafael Felipe da Costa Vieira
- Laboratório de Doenças Transmitidas por Vetores, Departamento de Medicina Veterinária, Universidade Federal do Paraná - UFPR, Curitiba, PR, Brasil.,Global One Health initiative - GOHi, The Ohio State University, Columbus, OH, USA
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Paiva TRP, Antunes AV, Oliveira LBD, Costa BND, Stedile STDO, Vieira TSWJ, Sousa MG. Espessamento miocárdico transitório em gato positivo para Bartonella spp.: Relato de Caso. Pubvet 2021. [DOI: 10.31533/pubvet.v15n05a825.1-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Um gato de dois anos de idade, sem raça definida, foi atendido por manifestar inapetência e apatia. Ao exame físico foram observados taquipneia, febre e sopro cardíaco. O animal apresentava também puliciose intensa e histórico de livre acesso à rua. O exame ecocardiográfico evidenciou espessamento miocárdico no ventrículo esquerdo. A partir de amostra de sangue, foi realizada reação em cadeia da polimerase (PCR) para detecção de Bartonella spp., com resultado positivo. Foi realizado ainda o teste rápido (ELISA) para o vírus da imunodeficiência felina (FIV) e vírus da leucemia felina (FELV), sendo ambos negativos. O gato foi tratado por 30 dias com doxiciclina (10 mg/kg, VO, BID), mostrando boa recuperação. Após 1 ano e 4 meses do término do tratamento, um novo ecocardiograma foi realizado e revelou o ventrículo esquerdo com espessura normal, o que sugere que o gato apresentou um espessamento miocárdico transitório (EMT), por provável cardiomiopatia inflamatória, decorrente da infecção pela Bartonella spp. A bartonelose, apesar de ser uma doença pouco investigada na rotina clínica, deve ser levada em consideração no diagnóstico diferencial em gatos jovens com espessamento do miocárdio, principalmente naqueles com sinais clínicos compatíveis.
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Coradi VDS, Soares NDA, Farias MJ, Silva AM, Valente JDM, Ferrari LR, Vieira RFDC, Vieira TSWJ. PESQUISA DE EHRLICHIA SPP. EM EQUINOS DO MUNICÍPIO DE PARANAGUÁ, PR – DADOS PRELIMINARES. AVS 2020. [DOI: 10.5380/avs.v15i5.77029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Erliquioses são doenças transmitidas por carrapatos que afetam animais e seres humanos. No Brasil, Ehrlichia canis em cães e Ehrlichia minasensis em bovinos são as principais espécies descritas. Em equinos, uma potencial nova espécie de Ehrlichia foi descrita infectando animais do Brasil e da Nicarágua. Entretanto, o potencial vetor e sinais clínicos associados à infecção permanecem desconhecidos. Neste sentido, o objetivo deste estudo foi avaliar equinos do município de Paranaguá, litoral do Estado do Paraná. Um total de cinco animais foram avaliados até o momento. O DNA das amostras foi extraído utilizando um kit comercial. Todas as amostras foram negativas para Ehrlichia spp. por PCR para os genes 16S rRNA e dsb de Ehrlichia. O gene endógeno gliceraldeído 3-fosfato desidrogenase (gapdh) foi amplificado em todas as amostras. Quatro de cinco (80%) equinos estavam infestados por carrapatos da espécie Amblyomma sculptum (1 M, 3 F e 2 ninfas) e um de cinco (20%) animal por carrapatos da espécie Dermacentor nitens (1 F). O estudo envolverá ainda a triagem sorológica dos equinos, bem como dos carrapatos por PCR em tempo real.
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Mongruel ACB, Spanhol VC, Valente JDM, Porto PP, Ogawa L, Otomura FH, Marquez EDS, André MR, Vieira TSWJ, Vieira RFDC. Survey of vector-borne and nematode parasites involved in the etiology of anemic syndrome in sheep from Southern Brazil. ACTA ACUST UNITED AC 2020; 29:e007320. [PMID: 32935770 DOI: 10.1590/s1984-29612020062] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Accepted: 06/22/2020] [Indexed: 12/16/2022]
Abstract
Although anemia has been historically linked to Haemonchus contortus infection, other infectious agents, such as hemotropic mycoplasmas and tick-borne disease pathogens, may also lead to anemic crisis in sheep. This study has aimed to investigate infections related to anemia in a sheep herd from Bandeirantes City, Paraná State, southern Brazil. Seven out of forty-two (16.6%; 95% CI: 8.32-30.6%) sheep were positive for hemoplasmas by a PCR targeting the 16S rRNA gene and all tested negative for A. marginale/A. ovis and Babesia/Theileria spp. by PCR based on msp4 and 18S rRNA genes, respectively. Two (4.7%; 95% CI: 1.32-15.79%) animals were infested with Rhipicephalus microplus ticks. Fecal egg counting was performed in 38 sheep and 24 (63.15%; 95% CI: 47.2-76.6%) presented > 500 eggs per gram. Phylogenetic analysis of partial sequences of the detected hemotropic Mycoplasma sp. 16S and 23S rRNA genes confirmed that the animals were infected with Mycoplasma ovis. Polymorphism analysis of partial 16S rRNA sequences showed three different genotypes of M. ovis infecting sheep assessed in the present study. Mycoplasma ovis and gastrointestinal nematodes occurs in sheep from the northern region of Paraná State.
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Affiliation(s)
- Anna Claudia Baumel Mongruel
- Vector-Borne Diseases Laboratory, Departamento de Medicina Veterinária, Universidade Federal do Paraná - UFPR, Curitiba, PR, Brasil
| | - Viviane Campos Spanhol
- Vector-Borne Diseases Laboratory, Departamento de Medicina Veterinária, Universidade Federal do Paraná - UFPR, Curitiba, PR, Brasil
| | - Jessica Damiana Marinho Valente
- Vector-Borne Diseases Laboratory, Departamento de Medicina Veterinária, Universidade Federal do Paraná - UFPR, Curitiba, PR, Brasil
| | - Petrônio Pinheiro Porto
- Departamento de Ciências Biológicas, Universidade Estadual do Norte do Paraná - UENP, Bandeirantes, PR, Brasil
| | - Liza Ogawa
- Departamento de Ciências Biológicas, Universidade Estadual do Norte do Paraná - UENP, Bandeirantes, PR, Brasil
| | - Flávio Haragushiku Otomura
- Departamento de Ciências Biológicas, Universidade Estadual do Norte do Paraná - UENP, Bandeirantes, PR, Brasil
| | - Ellen de Souza Marquez
- Departamento de Ciências Biológicas, Universidade Estadual do Norte do Paraná - UENP, Bandeirantes, PR, Brasil
| | - Marcos Rogério André
- Laboratório de Imunoparasitologia, Departamento de Patologia, Teriogenologia e Saúde Única, Faculdade de Ciências Agrárias e Veterinárias - FCAV, Universidade Estadual Paulista - Unesp, Jaboticabal, SP, Brasil
| | | | - Rafael Felipe da Costa Vieira
- Vector-Borne Diseases Laboratory, Departamento de Medicina Veterinária, Universidade Federal do Paraná - UFPR, Curitiba, PR, Brasil.,Global One Health initiative - GOHi, The Ohio State University, Columbus, OH, USA
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Pontarolo GH, Kühl LF, Pedrassani D, Campos M, Figueiredo FB, Valente JDM, Gonçalves LR, André MR, Vieira TSWJ, Vieira RFDC, Roque de Barros Filho I. 'Candidatus Mycoplasma haemoalbiventris', a novel hemoplasma species in white-eared opossums (Didelphis albiventris) from Brazil. Transbound Emerg Dis 2020; 68:565-572. [PMID: 32644252 DOI: 10.1111/tbed.13716] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 06/27/2020] [Accepted: 07/01/2020] [Indexed: 12/12/2022]
Abstract
Opossums of the genus Didelphis are considered synanthropic animals due to their close contact with human beings. Previously, two species of hemotropic mycoplasmas (hemoplasmas) have been detected in opossums: 'Candidatus Mycoplasma haemodidelphidis' in the North American opossum (Didelphis virginiana) and a potentially novel hemotropic Mycoplasma sp. in the white-eared opossums (Didelphis albiventris) from Brazil. Accordingly, the aims of this study were as follows: (a) to determine the prevalence of hemotropic Mycoplasma spp. in free-ranging opossums, (b) to characterize molecularly the hemotropic Mycoplasma sp. infecting opossums and (c) to determine factors associated with hemoplasma infection in opossums from Canoinhas municipality, Santa Catarina State, southern Brazil. For this purpose, 50 white-eared opossums (33 captured and 17 road-killed animals) were evaluated by a pan-hemoplasma PCR assay based on 16S rRNA. Six out of 50 (12%; 95% CI: 5.6%-23.8%) opossums were infested by Ctenocephalides felis fleas. Twenty out of 50 (40%; 95% CI: 26.41%-54.82%) opossums tested positive for hemotropic Mycoplasma sp. by PCR. Sequencing and phylogenetic analysis of the 16S and 23S rRNA gene fragments confirmed that animals were infected by a potentially novel hemotropic Mycoplasma sp. previously reported in white-eared opossums from Brazil. No significant association was found between gender (p = .7759), trap area (p = .0887) or presence of fleas (p = .3811) and positivity for hemoplasmas. The potentially novel hemoplasma species seems to be highly prevalent in white-eared opossums from the states of Paraná, Santa Catarina and Mato Grosso do Sul. Based on the phylogenetic analyses of the 16S rRNA and 23S rRNA genes along with epidemiological data, the name 'Candidatus Mycoplasma haemoalbiventris' is proposed for this novel organism.
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Affiliation(s)
- Giane Helenita Pontarolo
- Departamento de Medicina Veterinária, Universidade do Contestado, Canoinhas, Brazil.,Department of Veterinary Medicine, Universidade Federal do Paraná, Curitiba, Brazil
| | - Luís Felipe Kühl
- Departamento de Medicina Veterinária, Universidade do Contestado, Canoinhas, Brazil
| | - Daniela Pedrassani
- Departamento de Medicina Veterinária, Universidade do Contestado, Canoinhas, Brazil
| | - Monique Campos
- Laboratório de Biologia Celular, Instituto Carlos Chagas, Fiocruz, Curitiba, Brazil
| | | | | | - Luiz Ricardo Gonçalves
- Laboratório de Imunoparasitologia, Departamento de Patologia, Teriogenologia e Saúde Única, Faculdade de Ciências Agrárias e Veterinárias, Universidade Estadual Paulista (FCAV/UNESP), Jaboticabal, Brazil
| | - Marcos Rogério André
- Laboratório de Imunoparasitologia, Departamento de Patologia, Teriogenologia e Saúde Única, Faculdade de Ciências Agrárias e Veterinárias, Universidade Estadual Paulista (FCAV/UNESP), Jaboticabal, Brazil
| | | | - Rafael Felipe da Costa Vieira
- Vector-Borne Diseases Laboratory, Department of Veterinary Medicine, Universidade Federal do Paraná, Curitiba, Brazil.,Global One Health initiative (GOHi), The Ohio State University, Columbus, OH, USA
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Correia Dos Santos L, Vidotto O, Dos Santos NJR, Ribeiro J, Pellizzaro M, Dos Santos AP, Haisi A, Wischral Jayme Vieira TS, de Barros Filho IR, Cubilla MP, Araujo JP, da Costa Vieira RF, Ullmann LS, Biondo AW. Hemotropic mycoplasmas (hemoplasmas) in free-ranging bats from Southern Brazil. Comp Immunol Microbiol Infect Dis 2020; 69:101416. [PMID: 31931453 DOI: 10.1016/j.cimid.2020.101416] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2019] [Revised: 12/07/2019] [Accepted: 01/03/2020] [Indexed: 11/15/2022]
Abstract
Hemotropic mycoplasmas (hemoplasmas) are bacteria distributed worldwide and affect domestic and wildlife animals and human beings. Hemoplasmas have been described infecting hematophagous and non-hematophagous bats; however, transmission risk and zoonotic potential in vampire bats remain to be fully established. This study aimed to evaluate the presence of hemotropic mycoplasma species in free-ranging bats from this area using a universal PCR protocol for hemoplasmas. Accordingly, ten blood samples were collected from six male common vampire bats (Desmodus rotundus), two male hairy-legged vampire bats (Diphylla ecaudata), and two female non-hematophagous Pallas's mastiff bats (Molossus sp.) from the Curitiba's region, Paraná State, Southern Brazil. A total of eight (8/10) blood samples were positive byconventional PCR; five (5/6) Desmodus rotundus, two (2/2) Diphylla ecaudata, and one (1/2) Molossus sp. bats. The analyses of the partial sequence of the 16S rDNA gene suggest that the hemoplasma detected in Desmodus rotundus in South Brazil has a high identity compared to the hemoplasma circulating in vampire bats from Central and South America.
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Affiliation(s)
- Leonilda Correia Dos Santos
- Engineering and Exact Sciences Center, Universidade Estadual do Oeste do Paraná, Foz do Iguaçu, PR, 85870-650, Brazil; Department of Veterinary Medicine, Universidade Federal do Paraná, R. dos Funcionários, 1540, Curitiba, PR, 80035-050, Brazil.
| | - Odilon Vidotto
- Department of Preventive Veterinary Medicine, Universidade Estadual de Londrina, Londrina, PR, 86057-970, Brazil.
| | | | - Juliano Ribeiro
- Department of Cell and Molecular Biology, Universidade Federal do Paraná, Av. Cel. Francisco H. dos Santos, s/n, Curitiba, PR, 81531-980, Brazil.
| | - Maysa Pellizzaro
- Department of Veterinary Medicine, Universidade Federal do Paraná, R. dos Funcionários, 1540, Curitiba, PR, 80035-050, Brazil.
| | - Andrea Pires Dos Santos
- Department of Comparative Pathobiology, College of Veterinary Medicine, Purdue University, West Lafayette, IN, USA.
| | - Amanda Haisi
- Biotechnology Institute, Universidade Estadual Paulista (UNESP), Al. das Tecomarias, s/n, Chácara Capão Bonito, Botucatu, SP, 18607-440, Brazil.
| | | | - Ivan Roque de Barros Filho
- Department of Veterinary Medicine, Universidade Federal do Paraná, R. dos Funcionários, 1540, Curitiba, PR, 80035-050, Brazil.
| | - Michelle Pires Cubilla
- Department of Cell and Molecular Biology, Universidade Federal do Paraná, Av. Cel. Francisco H. dos Santos, s/n, Curitiba, PR, 81531-980, Brazil.
| | - João Pessoa Araujo
- Biotechnology Institute, Universidade Estadual Paulista (UNESP), Al. das Tecomarias, s/n, Chácara Capão Bonito, Botucatu, SP, 18607-440, Brazil.
| | - Rafael Felipe da Costa Vieira
- Department of Veterinary Medicine, Universidade Federal do Paraná, R. dos Funcionários, 1540, Curitiba, PR, 80035-050, Brazil.
| | - Leila Sabrina Ullmann
- Biotechnology Institute, Universidade Estadual Paulista (UNESP), Al. das Tecomarias, s/n, Chácara Capão Bonito, Botucatu, SP, 18607-440, Brazil.
| | - Alexander Welker Biondo
- Department of Veterinary Medicine, Universidade Federal do Paraná, R. dos Funcionários, 1540, Curitiba, PR, 80035-050, Brazil; Department of Cell and Molecular Biology, Universidade Federal do Paraná, Av. Cel. Francisco H. dos Santos, s/n, Curitiba, PR, 81531-980, Brazil.
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11
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Dos Santos LG, Cordeiro CT, Vieira RFDC, Vieira TSWJ, Stedile STO. INVESTIGAÇÃO DO CONHECIMENTO DE PESSOAS INFECTADAS POR Leptospira spp. E DA SOROPREVALÊNCIA, LEPTOSPIRÚRIA E LEPTOSPIREMIA DE SEUS CÃES CONTACTANTES. AVS 2019. [DOI: 10.5380/avs.v24i4.64526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
A leptospirose é uma zoonose, endêmica no Brasil, que afeta diversos mamíferos, inclusive o homem. Os cães portadores assintomáticos podem transmiti-la e é provável que o número de animais nesta condição seja subestimado. Apesar de a maioria dos estudos ser baseada em resultados sorológicos, este teste não prediz se o animal apresenta leptospirúria. Para a detecção de leptospiras na urina é indicado o diagnóstico molecular por meio da reação em cadeia da polimerase (PCR). Devido à escassez de dados para avaliar o quão presentes estes cães reservatórios são e o quanto estão envolvidos na transmissão para seres humanos, este estudo teve como objetivo investigar o estado de portador renal para Leptospira spp. em cães contactantes de pessoas acometidas por leptospirose no município de Curitiba/Paraná. Sangue e urina foram coletados de 15 cães, pertencentes a oito tutores com histórico recente de leptospirose para realização de sorologia (soro-aglutinação microscópica) e PCR destas amostras. Todos os testes sorológicos dos cães foram negativos, bem como os resultados das PCR do sangue e da urina. Este resultado sugere que os cães submetidos à pesquisa não serviram como fonte de infecção, não havendo, portanto, relação entre portadores assintomáticos e tutores infectados neste estudo.
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Abate HL, Santos NJRD, Brito DRB, Valente JDM, Vieira TSWJ, Garcia JL, Vieira RFDC, Vidotto O. Theileria sp. in water buffaloes from Maranhão State, northeastern Brazil. ACTA ACUST UNITED AC 2018; 27:593-596. [PMID: 30427528 DOI: 10.1590/s1984-296120180075] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Accepted: 08/07/2018] [Indexed: 11/22/2022]
Abstract
Anaplasma marginale and piroplasm species are widespread among Brazilian cattle herds. Both of these tick-borne pathogens hamper livestock production and cause a significant economic impact. Although buffaloes have demonstrated a high level of adaptability, data on tick-borne pathogens are scarcely reported in Brazil. Thus, the aim of this study was to screen water buffaloes from the state of Maranhão for piroplasm and A. marginale occurrence using PCR assays. All samples were negative for A. marginale. One of the 287 (0.35%) water buffaloes tested was positive for Theileria sp. Sequencing of the 18S rDNA fragment (356 bp) showed that the Theileria sp. identified was closely related to the T. buffeli /orientalis group. Future studies on the clinical signs of infection and the main vector in this country are needed.
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Affiliation(s)
- Hugo Luca Abate
- Departamento de Medicina Veterinária Preventiva, Universidade Estadual de Londrina - UEL, Londrina, PR, Brasil
| | | | | | | | | | - João Luis Garcia
- Departamento de Medicina Veterinária Preventiva, Universidade Estadual de Londrina - UEL, Londrina, PR, Brasil
| | | | - Odilon Vidotto
- Departamento de Medicina Veterinária Preventiva, Universidade Estadual de Londrina - UEL, Londrina, PR, Brasil
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13
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Nascimento DAG, Vieira RFDC, Vieira TSWJ, Toledo RDS, Tamekuni K, Santos NJRD, Gonçalves DD, Vieira ML, Biondo AW, Vidotto O. Serosurvey of Borrelia in dogs, horses, and humans exposed to ticks in a rural settlement of southern Brazil. ACTA ACUST UNITED AC 2016; 25:418-422. [PMID: 27982299 DOI: 10.1590/s1984-29612016085] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2016] [Accepted: 08/23/2016] [Indexed: 11/21/2022]
Abstract
The aims of the present study were to serosurvey dogs, horses, and humans highly exposed to tick bites for anti-Borrelia burgdorferi s.l. antibodies, identify tick species present, and determine risk factors associated with seropositivity in a rural settlement of Paraná State, southern Brazil. Eighty-seven residents were sampled, along with their 83 dogs and 18 horses, and individual questionnaires were administered. Immunofluorescence antibody test (IFAT) was performed on serum samples and positive samples were subjected to western blot (WB) analysis. Anti-B. burgdorferi antibodies were found in 4/87 (4.6%) humans, 26/83 (31.3%) dogs, and 7/18 (38.9%) horses by IFAT, with 4/4 humans also positive by WB. Ticks identified were mostly from dogs and included 45/67 Rhipicephalus sanguineus, 21/67 Amblyomma ovale, and 1/67 A. cajennense sensu lato. All (34/34) horse ticks were identified as A. cajennense s.l.. No significant association was found when age, gender, or presence of ticks was correlated to seropositivity to Borrelia sp. In conclusion, although anti-Borrelia antibodies have been found in dogs, horses and their owners from the rural settlement, the lack of isolation, molecular characterization, absence of competent vectors and the low specificity of the commercial WB kit used herein may have impaired risk factor analysis.
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Affiliation(s)
| | | | | | - Roberta Dos Santos Toledo
- Departamento de Medicina Veterinária Preventiva, Universidade Estadual de Londrina - UEL, Londrina, PR, Brasil
| | - Katia Tamekuni
- Departamento de Medicina Veterinária Preventiva, Universidade Estadual de Londrina - UEL, Londrina, PR, Brasil
| | | | - Daniela Dibb Gonçalves
- Departamento de Medicina Veterinária e Saúde Pública, Universidade Paranaense - UNIPAR, Umuarama, PR, Brasil
| | - Maria Luísa Vieira
- Grupo de Leptospirose e Doença de Lyme, Unidade de Microbiologia Médica, Institute of Hygiene and Tropical Medicine - IHMT, Universidade Nova de Lisboa - UNL, Lisboa, Portugal
| | - Alexander Welker Biondo
- Departamento de Medicina Veterinária, Universidade Federal do Paraná - UFPR, Curitiba, PR, Brasil
| | - Odilon Vidotto
- Departamento de Medicina Veterinária Preventiva, Universidade Estadual de Londrina - UEL, Londrina, PR, Brasil
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Constantino C, Pellizzaro M, Paula EFED, Vieira TSWJ, Brandão APD, Ferreira F, Vieira RFDC, Langoni H, Biondo AW. Serosurvey for Leishmania spp., Toxoplasma gondii, Trypanosoma cruzi and Neospora caninum in neighborhood dogs in Curitiba-Paraná, Brazil. Rev Bras Parasitol Vet 2016; 25:504-510. [DOI: 10.1590/s1984-29612016062] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2016] [Accepted: 06/27/2016] [Indexed: 11/21/2022]
Abstract
Abstract Neighborhood dogs may act as reservoirs for several zoonotic protozoan infections, particularly in urban areas, thus constituting a potential public health threat. Accordingly, the aim of the present study was to evaluate the exposure of neighborhood dogs to four protozoan pathogens in public areas with high levels of human movement in Curitiba, southern Brazil. Blood samples from 26 neighborhood dogs were screened by means of the indirect immunofluorescent antibody test (IFAT) for Leishmania spp., Toxoplasma gondii, Trypanosoma cruzi and Neospora caninum, and a questionnaire was answered by the respective keeper. A total of 8/26 dogs (30.7%) seroreactive to T. gondii, 3/26 (11.5%) to N. caninum and 2/26 (7.7%) to both were identified. All the samples were seronegative for T. cruzi and Leishmania spp. Pathogen seroreactivity was not associated with the daily human movements or other epidemiological variables investigated (p > 0.05). In conclusion, the low seroprevalence for T. gondii and N. caninum indicated low environmental and food risk for animal infection and the seronegativity for Leishmania spp. and T. cruzi may reflect the absence of these pathogens in urban areas of Curitiba. Moreover, neighborhood dogs may be used as environmental sentinels for the presence of protozoan pathogens and their vectors.
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Vieira RFDC, Vidotto O, Vieira TSWJ, Guimaraes AMS, Santos APD, Nascimento NC, Santos NJRD, Martins TF, Labruna MB, Marcondes M, Biondo AW, Messick JB. MOLECULAR INVESTIGATION OF HEMOTROPIC MYCOPLASMAS IN HUMAN BEINGS, DOGS AND HORSES IN A RURAL SETTLEMENT IN SOUTHERN BRAZIL. Rev Inst Med Trop Sao Paulo 2016; 57:353-7. [PMID: 26422162 PMCID: PMC4616923 DOI: 10.1590/s0036-46652015000400014] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The aims of this study were to determine the prevalence of hemoplasmas in a rural Brazilian settlement's population of human beings, their dogs and horses, highly exposed to tick bites; to identify the tick species parasitizing dogs and horses, and analyze factors associated with their infection. Blood samples from 132 dogs, 16 horses and 100 humans were screened using a pan-hemoplasma SYBR green real-time PCR assay followed by a species-specific TaqMan real-time PCR. A total of 59/132 (44.7%) dog samples were positive for hemoplasmas (21 Mycoplasma haemocanisalone, 12 ' Candidatus Mycoplasma haematoparvum' alone and 21 both). Only 1/100 (1.0%) human sample was positive by qPCR SYBR green, with no successful amplification of 16S rRNA or 23 rRNA genes despite multiple attempts. All horse samples were negative. Dogs >1 year of age were more likely to be positive for hemoplasmas ( p= 0.0014). In conclusion, although canine hemoplasma infection was highly prevalent, cross-species hemoplasma transmission was not observed, and therefore may not frequently occur despite overexposure of agents and vectors.
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Affiliation(s)
| | - Odilon Vidotto
- Department of Preventive Veterinary Medicine, Universidade Estadual de Londrina, Londrina, PR, BR
| | | | - Ana Márcia Sá Guimaraes
- Department of Comparative Pathobiology, College of Veterinary Medicine, Purdue University, West Lafayette, IN, US
| | - Andrea Pires dos Santos
- Department of Comparative Pathobiology, College of Veterinary Medicine, Purdue University, West Lafayette, IN, US
| | - Naíla Cannes Nascimento
- Department of Comparative Pathobiology, College of Veterinary Medicine, Purdue University, West Lafayette, IN, US
| | | | - Thiago Fernandes Martins
- Department of Preventive Veterinary Medicine and Animal Health, Faculty of Veterinary Medicine, Universidade de São Paulo, S. Paulo, SP, BR
| | - Marcelo Bahia Labruna
- Department of Preventive Veterinary Medicine and Animal Health, Faculty of Veterinary Medicine, Universidade de São Paulo, S. Paulo, SP, BR
| | - Mary Marcondes
- Department of Veterinary Clinics, Surgery and Reproduction, Universidade Estadual Paulista, Araçatuba, S. Paulo, BR
| | | | - Joanne Belle Messick
- Department of Comparative Pathobiology, College of Veterinary Medicine, Purdue University, West Lafayette, IN, US
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Vieira TSWJ, Vieira RFDC, Nascimento DAGD, Tamekuni K, Toledo RDS, Chandrashekar R, Marcondes M, Biondo AW, Vidotto O. Serosurvey of tick-borne pathogens in dogs from urban and rural areas from Parana State, Brazil. ACTA ACUST UNITED AC 2015; 22:104-9. [PMID: 24252955 DOI: 10.1590/s1984-29612013000100019] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2012] [Accepted: 09/12/2012] [Indexed: 11/22/2022]
Abstract
Considering the zoonotic potential of tick-borne disease (TBD) agents and the fact that dogs may act as sentinels for human infection, the aim of the present study was to determine the seroprevalence of TBD agents and risk factors for exposure in two different canine populations from Parana State, Southern Brazil. A total of 138 dog serum samples from urban (UA) (n=68) and rural (RA) (n=70) areas were tested with commercial ELISA rapid test for Anaplasma phagocytophilum, Ehrlichia canis and Borrelia burgdorferi antibodies and indirect immunofluorescence assay (IFAT) for Babesia vogeli. An overall of 92∕138 (66.7%) dogs, being 62∕68 (91.2%) from UA and 30∕70 (42.9%) from RA, were seropositive for at least one TBD agent. From the total number of dogs, sixty-two were positive for E. canis (44.9%), 19 (13.8%) for A. phagocytophilum, and 64 (46.4%) for B. vogeli. Anti-B. burgdorferi antibodies were not detected. Dogs from UA showed a higher percentage of tick infestation (p = 0.0135) and were highly associated with seropositivity to E. canis (p = 0.000005), A. phagocytophilum (p = 0.0001), and B. vogeli (p = 0.0012). In summary, the findings indicate that dogs from urban areas present higher potential risk exposure to TBD pathogens than those from rural areas.
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Vieira RFDC, Vieira TSWJ, Nascimento DDAG, Martins TF, Krawczak FS, Labruna MB, Chandrashekar R, Marcondes M, Biondo AW, Vidotto O. Serological survey of Ehrlichia species in dogs, horses and humans: zoonotic scenery in a rural settlement from southern Brazil. Rev Inst Med Trop Sao Paulo 2014; 55:335-40. [PMID: 24037288 PMCID: PMC4105071 DOI: 10.1590/s0036-46652013000500007] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2012] [Accepted: 01/29/2013] [Indexed: 11/21/2022] Open
Abstract
The aims of this study were to determine the seroprevalence of Ehrlichia spp. and risk factors for exposure in a restricted population of dogs, horses, and humans highly exposed to tick bites in a Brazilian rural settlement using a commercial ELISA rapid test and two indirect immunofluorescent assays (IFA) with E. canis and E. chaffeensis crude antigens. Serum samples from 132 dogs, 16 horses and 100 humans were used. Fifty-six out of 132 (42.4%) dogs were seropositive for E. canis. Dogs > one year were more likely to be seropositive for E. canis than dogs ≤ one year (p = 0.0051). Ten/16 (62.5%) and 8/16 (50%) horses were seropositive by the commercial ELISA and IFA, respectively. Five out of 100 (5%) humans were seropositive for E. canis and E. chaffeensis. Rhipicephalus sanguineus (n = 291, 97.98%) on dogs and Amblyomma cajennense (n = 25, 96.15%) on horses were the most common ticks found. In conclusion, anti-Ehrlichia spp. antibodies were found in horses; however, the lack of a molecular characterization precludes any conclusion regarding the agent involved. Additionally, the higher seroprevalence of E. canis in dogs and the evidence of anti-Ehrlichia spp. antibodies in humans suggest that human cases of ehrlichiosis in Brazil might be caused by E. canis, or other closely related species.
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Affiliation(s)
- Rafael Felipe da Costa Vieira
- Departmento de Ciências Veterinárias, Centro de Ciências Agrárias, Universidade Federal da Paraíba, 58397-000AreiaParaíba, Brazil
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18
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Vieira RFDC, Molento MB, Guimarães AMS, Santos APD, Bonat M, Javorouski ML, Popp L, Santos LCD, Moraes W, Cubas ZS, Vieira TSWJ, Vidotto O, Barros Filho IR, Biondo AW, Messick JB. Use of a Mycoplasma suis-PCR protocol for screening a population of captive peccaries (Tayassu tajacu and Tayassu pecari). Rev Bras Parasitol Vet 2011; 20:75-7. [DOI: 10.1590/s1984-29612011000100016] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2010] [Accepted: 11/05/2010] [Indexed: 11/22/2022]
Abstract
Mycoplasma suis is a hemotropic bacteria of red blood cells and the causative agent of swine eperythrozoonosis. Diagnosis of infection may be reached by direct examination of blood smears; however, the use of polymerase chain reaction (PCR) of the 16S RNA gene of M. suis improves the sensitivity and specificity of detection. The aim of this study was to screen peccaries (Tayassu tajacu and T. pecari) for M. suis infection using a specific conventional PCR. A total of 28 blood samples from captive collared and white-lipped peccaries were collected, DNA extracted and a specific M. suis PCR assay performed. All samples were negatives by both blood smear examination and PCR testing. To verify the presence of amplifiable DNA, PCR for beta-actin gene was performed in all samples. This study was part of an active surveillance program, which is crucial for monitoring animal health status, particularly in wildlife species.
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