8 results on '"Doença transmitida por carrapato"'
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2. Seroprevalence and hematological abnormalities associated with Ehrlichia canis in dogs referred to a veterinary teaching hospital in central-western Brazil.
- Author
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de Freitas Paula, Warley Vieira, Gonçalves Granjeiro Taques, Ísis Indaiara, Carvalho Miranda, Vanessa, Gonçalves Barreto, Ana Laura, Ferreira de Paula, Luiza Gabriella, Brolo Martins, Danieli, Donizeti Damasceno, Adilson, Muñoz-Leal, Sebastián, da Paixão Sevá, Anaiá, Dantas-Torres, Filipe, Moura de Aguiar, Daniel, and da Silva Krawczak, Felipe
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TEACHING hospitals , *TICK-borne diseases , *CANIS , *TICK control , *DOG owners , *VETERINARY hospitals , *EHRLICHIA , *SEROPREVALENCE , *TICKS , *DOGS , *DIROFILARIA immitis - Abstract
Ticks are significant parasites of dogs in the tropics, where tick-borne pathogens are highly prevalent, especially in areas where tick control measures are frequently neglected. This study investigated the seroprevalence and hematological abnormalities associated with Ehrlichia canis in dogs referred to a veterinary teaching hospital in Central-western Brazil. Out of 264 dogs tested for anti-Ehrlichia canis antibodies by an indirect immunofluorescence assay (IFA), 59.1% (156/264) were positive. Seropositivity was significantly associated to anemia and thrombocytopenia, alone or in combination, and to leukopenia. Conversely, there were no differences in terms of seroprevalence according to sex, breed and age. This study demonstrated that dogs referred to a veterinary teaching hospital in Central-western Brazil are highly exposed to E. canis and that seropositive dogs are more likely to present hematological abnormalities, particularly anemia, thrombocytopenia and leukopenia. To our knowledge, this is the first study on detection of anti-E. canis antibodies by means of IFA among dogs in the state of Goiás. These findings highlighted the need for increasing awareness among dog owners regarding tick control measures in Central-western Brazil, ultimately to reduce the risk of exposure to E. canis and other tick-borne pathogens. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
3. Detection molecular of Rangelia vitalii in dogs from Parana State, Southern Brazil
- Author
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Bianca Ressetti da Silva, Morgana de Fátima Kuteques Ferreira, Gabriela Maffezzolli, Marília de Oliveira Koch, Olair Carlos Beltrame, Isis Indaiara Gonçalves Granjeiro Taques, Amanda Noéli da Silva Campos, Daniel Moura de Aguiar, and Rosangela Locatelli Dittrich
- Subjects
Cão ,hemoparasita ,nambiuvú ,rangeliose ,doença transmitida por carrapato ,Animal culture ,SF1-1100 - Abstract
Abstract Rangelia vitalii infects erythrocytes, leukocytes and endothelial cells of dogs. The present study aimed to report the molecular detection confirmed by sequencing of R. vitalii in the state of Paraná, as well as describe the clinical, hematological and biochemical alterations of the infected dogs. Three sick dogs from the metropolitan area of Curitiba, PR, Brazil, underwent a physical exam, and laboratory tests included hematology, biochemistry, polymerase chain reaction (PCR), and gene sequencing. Clinical signs included apathy, anorexia, and hemorrhage. Intra-erythrocytic and extracellular piroplasms were found on peripheral blood smears from all three dogs. Blood samples from these animals were positive for Babesia sp. by PCR targeting 18S rRNA. PCR products from all three dogs were sequenced, and BLAST analysis showed that the PCR-generated sequences were highly homologous with those of R. vitalii previously reported. Hematologic findings included severe anemia, shift of neutrophils to the regenerative left, and thrombocytopenia. Serum urea levels were increased in all three dogs, and direct bilirubin levels were elevated in one dog.
- Published
- 2018
- Full Text
- View/download PDF
4. Seroprevalence and hematological abnormalities associated with Ehrlichia canis in dogs referred to a veterinary teaching hospital in central-western Brazil
- Author
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Ana Laura Gonçalves Barreto, Warley Vieira de Freitas Paula, Danieli Brolo Martins, Vanessa Carvalho Miranda, Adilson Donizeti Damasceno, Felipe da Silva Krawczak, Sebastián Muñoz-Leal, Luiza Gabriella Ferreira de Paula, Anaiá da Paixão Sevá, Daniel Moura de Aguiar, Filipe Dantas-Torres, and Isis Indaiara Gonçalves Granjeiro Taques
- Subjects
medicine.medical_specialty ,Veterinary medicine ,reação de imunofluorescência indireta ,doença transmitida por carrapato ,tick-borne diseases ,Ehrlichia canis ,Anemia ,Agriculture (General) ,estado de Goiás ,S1-972 ,patologia clínica ,Goiás state ,Epidemiology ,parasitic diseases ,medicine ,Seroprevalence ,Tick Control ,epidemiologia ,erliquiose ,Tick-borne disease ,General Veterinary ,biology ,business.industry ,Agriculture ,medicine.disease ,biology.organism_classification ,bacterial infections and mycoses ,Canis ,indirect immunofluorescence assay ,ehrlichiosis ,Ehrlichiosis (canine) ,clinical pathology ,Animal Science and Zoology ,epidemiology ,business ,Agronomy and Crop Science - Abstract
Ticks are significant parasites of dogs in the tropics, where tick-borne pathogens are highly prevalent, especially in areas where tick control measures are frequently neglected. This study investigated the seroprevalence and hematological abnormalities associated with Ehrlichia canis in dogs referred to a veterinary teaching hospital in Central-western Brazil. Out of 264 dogs tested for anti-Ehrlichia canis antibodies by an indirect immunofluorescence assay (IFA), 59.1% (156/264) were positive. Seropositivity was significantly associated to anemia and thrombocytopenia, alone or in combination, and to leukopenia. Conversely, there were no differences in terms of seroprevalence according to sex, breed and age. This study demonstrated that dogs referred to a veterinary teaching hospital in Central-western Brazil are highly exposed to E. canis and that seropositive dogs are more likely to present hematological abnormalities, particularly anemia, thrombocytopenia and leukopenia. To our knowledge, this is the first study on detection of anti-E. canis antibodies by means of IFA among dogs in the state of Goiás. These findings highlighted the need for increasing awareness among dog owners regarding tick control measures in Central-western Brazil, ultimately to reduce the risk of exposure to E. canis and other tick-borne pathogens. RESUMO: Carrapatos são importantes parasitos de cães nos trópicos, onde patógenos transmitidos por carrapatos são altamente prevalentes, especialmente em áreas onde as medidas de controle de carrapatos são frequentemente negligenciadas. O estudo investigou a soroprevalência e as anormalidades hematológicas associadas à Ehrlichia canis em cães encaminhados para um hospital veterinário-escola no Centro-oeste do Brasil. Dos 264 cães testados para anticorpos anti-Ehrlichia canis por meio da reação de imunofluorescência indireta (RIFI), 59.1% (156/264) foram positivos. A soropositividade foi associada significativamente à anemia e trombocitopenia, isoladamente ou em combinação, e à leucopenia. Por outro lado, não houve diferenças quanto à soroprevalência segundo sexo, raça e idade. Este estudo demonstrou que cães encaminhados a um hospital veterinário-escola na região Centro-oeste do Brasil são altamente expostos à E. canis, e que cães soropositivos têm maior probabilidade de apresentar alterações hematológicas, principalmente anemia, trombocitopenia e leucopenia. Para o nosso conhecimento, este é o primeiro estudo sobre a detecção de anticorpos anti-E. canis por meio da RIFI em cães do estado de Goiás. Essas descobertas destacam a necessidade de aumentar a conscientização entre os proprietários de cães em relação às medidas de controle do carrapato no Centro-oeste do Brasil, em última análise, para reduzir o risco de exposição ao E. canis e outros patógenos transmitidos por carrapatos.
- Published
- 2021
5. Febre maculosa na Região Metropolitana de Belo Horizonte, Minas Gerais - Brasil: Descrição dos casos e dos ambientes prováveis de infecção, 2017
- Author
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Stefan Vilges de Oliveira, Priscila Boschi de Souza, Bruna Dias Tourinho, Rodrigo Fabiano do Carmo Said, Ana Íris de Lima Duré, Mariana Gontijo de Brito, Priscila Leal e Leite, Orlando Marcos Farias de Sousa, and Isabela Veloso
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Ciências da Saúde ,Epidemiologia ,Febre maculosa ,Doença transmitida por carrapato ,Epidemiologia Descritiva ,Perfil de Saúde - Abstract
Objetivo: investigar os casos de febre maculosa, verificar os aspectos relacionados à assistência à saúde e caracterizar o perfil epidemiológico desses e do ambiente de infecção. Métodos: estudo descritivo dos casos confirmados de FM entre janeiro e novembro de 2017. Foi elaborado um formulário semiestruturado para coleta dos dados. Para as análises epidemiológicas, foram utilizados os programas EpiInfoTM 7 e Qgis® 2.18.1. Foram calculadas frequências, medidas de tendência central, dispersão e indicadores de oportunidade de assistência. Nos ambientes prováveis de infecção, foram realizadas coletas de carrapatos que foram identificados e submetidos à pesquisa de Rickettsia do grupo da FM. Resultados: foram confirmados 15 casos de FM; desses, a maioria foi do sexo masculino (93%) com média de 42 anos de idade; 10 evoluíram para óbito. Todos apresentaram febre, 13(87%) cefaleia e 12(80%) mialgia. Apresentaram mediana e média de evolução para óbito pela doença de 6 dias (1 a 9), oportunidades de hospitalização, tratamento, diagnóstico e notificação de 4,5(0 a 8); 7(0 a 26); 9(DP±6) e 33(DP±45) dias, respectivamente. Para assistência à saúde, 14(93%) casos procuraram atendimento mais de duas vezes, com tempo de internação de 4,5 dias (0 a 8 dias). O hospital foi o serviço procurado, exclusivamente, no quarto atendimento. Dengue e FM foram as hipóteses diagnósticas mais frequentes. Foram coletados 250 espécimes de carrapatos em quatro municípios, sendo em um município identificado Amblyomma sculptum naturalmente infectados. Conclusões: foram assinaladas condições assistenciais pouco sensíveis à ocorrência da FM, o que, provavelmente, colaborou para ocorrência de óbitos, além da necessidade de sensibilização de equipes de saúde e vigilância quanto à ocorrência da FM na região.
- Published
- 2020
- Full Text
- View/download PDF
6. Detection molecular of Rangelia vitalii in dogs from Parana State, Southern Brazil
- Author
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Silva, Bianca Ressetti da, Ferreira, Morgana de Fátima Kuteques, Maffezzolli, Gabriela, Koch, Marília de Oliveira, Beltrame, Olair Carlos, Taques, Isis Indaiara Gonçalves Granjeiro, Campos, Amanda Noéli da Silva, Aguiar, Daniel Moura de, and Dittrich, Rosangela Locatelli
- Subjects
rangeliosis ,hemoparasite ,Cão ,doença transmitida por carrapato ,nambiuvú ,hemoparasita ,Dog ,tick-borne disease ,rangeliose - Abstract
Rangelia vitalii infects erythrocytes, leukocytes and endothelial cells of dogs. The present study aimed to report the molecular detection confirmed by sequencing of R. vitalii in the state of Paraná, as well as describe the clinical, hematological and biochemical alterations of the infected dogs. Three sick dogs from the metropolitan area of Curitiba, PR, Brazil, underwent a physical exam, and laboratory tests included hematology, biochemistry, polymerase chain reaction (PCR), and gene sequencing. Clinical signs included apathy, anorexia, and hemorrhage. Intra-erythrocytic and extracellular piroplasms were found on peripheral blood smears from all three dogs. Blood samples from these animals were positive for Babesia sp. by PCR targeting 18S rRNA. PCR products from all three dogs were sequenced, and BLAST analysis showed that the PCR-generated sequences were highly homologous with those of R. vitalii previously reported. Hematologic findings included severe anemia, shift of neutrophils to the regenerative left, and thrombocytopenia. Serum urea levels were increased in all three dogs, and direct bilirubin levels were elevated in one dog. Resumo Rangelia vitalii infecta eritrócitos, leucócitos e células endoteliais de cães. O presente estudo objetivou relatar a detecção molecular confirmada por sequenciamento de R. vitalii no estado do Paraná e descrever as alterações clínicas, hematológicas e bioquímicas dos cães infectados. Três cães doentes da região metropolitana de Curitiba, PR, Brasil, foram submetidos a exame físico e exames laboratoriais que incluíram hematologia, bioquímica, reação em cadeia da polimerase (PCR) e sequenciamento genético. Os sinais clínicos incluíram apatia, anorexia e hemorragia. Piroplasmas intra-eritrocíticos e extracelulares foram encontrados em esfregaços de sangue periférico dos três cães. As amostras de sangue destes animais foram positivas para Babesia sp. pela PCR baseada no gene 18S rRNA. Os produtos de PCR dos três cães foram sequenciados e a análise de BLAST mostrou que as seqüências geradas por PCR eram altamente homólogas com as de R. vitalii previamente relatadas. Os achados hematológicos incluíram anemia grave, desvio de neutrófilos à esquerda regenerativo e trombocitopenia. Os níveis de uréia no soro aumentaram nos três cães, e os níveis de bilirrubina direta foram elevados em um cão.
- Published
- 2019
7. Detection molecular of Rangelia vitalii in dogs from Parana State, Southern Brazil
- Author
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Isis Indaiara Gonçalves Granjeiro Taques, Rosangela Locatelli Dittrich, Olair Carlos Beltrame, Amanda Noéli da Silva Campos, Marilia de Oliveira Koch, Daniel Moura de Aguiar, Morgana de Fátima Kuteques Ferreira, Gabriela Maffezzolli, and Bianca Ressetti da Silva
- Subjects
Male ,medicine.medical_specialty ,doença transmitida por carrapato ,Bilirubin ,nambiuvú ,Anorexia ,Biology ,Polymerase Chain Reaction ,law.invention ,Microbiology ,Piroplasmida ,chemistry.chemical_compound ,Dogs ,law ,Babesiosis ,Molecular genetics ,Internal medicine ,RNA, Ribosomal, 18S ,medicine ,Animals ,Dog Diseases ,Polymerase chain reaction ,lcsh:SF1-1100 ,Tick-borne disease ,Hematology ,Cão ,General Veterinary ,DNA, Protozoan ,medicine.disease ,rangeliose ,Rangelia vitalii ,Babesia sp ,chemistry ,hemoparasita ,Parasitology ,lcsh:Animal culture ,medicine.symptom - Abstract
Rangelia vitalii infects erythrocytes, leukocytes and endothelial cells of dogs. The present study aimed to report the molecular detection confirmed by sequencing of R. vitalii in the state of Paraná, as well as describe the clinical, hematological and biochemical alterations of the infected dogs. Three sick dogs from the metropolitan area of Curitiba, PR, Brazil, underwent a physical exam, and laboratory tests included hematology, biochemistry, polymerase chain reaction (PCR), and gene sequencing. Clinical signs included apathy, anorexia, and hemorrhage. Intra-erythrocytic and extracellular piroplasms were found on peripheral blood smears from all three dogs. Blood samples from these animals were positive for Babesia sp. by PCR targeting 18S rRNA. PCR products from all three dogs were sequenced, and BLAST analysis showed that the PCR-generated sequences were highly homologous with those of R. vitalii previously reported. Hematologic findings included severe anemia, shift of neutrophils to the regenerative left, and thrombocytopenia. Serum urea levels were increased in all three dogs, and direct bilirubin levels were elevated in one dog.
- Published
- 2018
8. Ehrlichia canis DNA in domestic cats parasitized by Rhipicephalus sanguineus sensu lato (s.l.) ticks in Brazil - case report
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Braga, Ísis Assis, Taques, Isis Indaiara Gonçalves Granjeiro, Costa, Jackeliny dos Santos, Dias, Ingrid Savino de Oliveira, Grontoski, Estefânia Crivelatti, Ziliani, Thaysa Felfili, Melo, Andréia Lima Tomé, and Aguiar, Daniel Moura de
- Subjects
Gatos ,Cats ,Ehrlichiosis ,Tick-borne disease ,Doença transmitida por carrapato ,Infection ,Erliquiose ,Infecção - Abstract
Ectoparasites can transmit pathogens, including bacteria such as Ehrlichia sp., which trigger infectious diseases in domestic animals. Little is known about the epidemiology of feline ehrlichiosis, although several studies have focused on elucidating the pathogenesis and transmission of this disease. This paper presents the first mutual infection by Ehrlichia sp. between a domestic cat and a Rhipicephalus sanguineus sensu lato (s.l.) tick removed from the animal. The cat and tick were tested by Polymerase Chain Reaction (PCR) to detect the dsb gene, and the analyzed sequences revealed samples 100% identical to E. canis. Based on this report, we discussed the importance of cats as E. canis reservoirs s and their position in the cycle of transmission between dogs and cats in Brazil. Os ectoparasitos são capazes de transmitir patógenos incluindo algumas bactérias, como a Ehrlichia sp., causando doenças em animais domésticos. Pouco se conhece sobre a epidemiologia da erliquiose felina, embora alguns estudos já tenham sido realizados para elucidar a sua patogenia e transmissão. Este trabalho relata a primeira infecção mútua por Ehrlichia sp. entre um felino doméstico e o carrapato Rhipicephalus sanguineus sensu lato (s.l.) removido deste animal. Ambos foram testados pela Reação em Cadeia pela Polimerase (PCR) para detectar o gene dsb, e as sequências analisadas confirmaram amostras 100% idênticas à E. canis. Baseado neste relato é discutida a importância dos gatos como vetores de E. canis e sua posição no ciclo de transmissão de carrapatos entre cães e gatos no Brasil.
- Published
- 2017
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