Serological Assays
Mostrando 1-12 de 419 artigos, teses e dissertações.
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1. Salmonella spp. prevalence, antimicrobial resistance and risk factor determination in Colombian swine farms
RESUMO: Para determinar Salmonellaspp. prevalência/soroprevalência, padrões de resistência antimicrobiana e identificação de fatores de risco associados à sua presença em granjas suínas colombianas. Foram obtidas 504 amostras (fezes, zaragatoas e amostras do ambiente) de 21 fazendas distribuídas em quatro regiões geográficas da Colômbia. Salmone
Pesq. Vet. Bras.. Publicado em: 02/12/2019
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2. Canine monocytic ehrlichiosis in Buenos Aires, Argentina: comparison of serological and molecular assays
RESUMO: A ehrlichiose monocítica canina (CME) é uma doença infecciosa transmitida pelo carrapato Rhipicephalus sanguineus sensu lato com distribuição mundial causada por Ehrlichia canis, que pode produzir uma doença grave se não foi diagnosticada e tratada precocemente. A confirmação da doença é feita diretamente pela detecção do DNA fazendo a r
Pesq. Vet. Bras.. Publicado em: 14/10/2019
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3. Characteristics associated with anti-HCV serological markers in prisoners in the state of Paraná, Brazil: a case-control study
ABSTRACT Background: The prison system in Paraná, Brazil, is experiencing serious problems related to the increasing number of prisoners. Control of hepatitis C virus (HCV) has become more intense because the incarcerated population is considered a high-risk group for contagious diseases due to the favorable conditions found in prisons for the spread of th
Braz J Infect Dis. Publicado em: 09/09/2019
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4. Frequency of enteroparasitic infections and serum positivity for Toxocara spp. in children from a public day care center in Southern Brazil
Resumo Introdução As creches desempenham um importante papel social na educação e desenvolvimento inicial das crianças. O objetivo deste estudo foi investigar a frequência de infecções parasitárias intestinais, além de infecção por Toxocara spp. em crianças de uma creche na cidade do Rio Grande, Rio Grande do Sul, Brasil. Métodos: Para o estud
Braz. J. Biol.. Publicado em: 04/07/2019
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5. West Nile virus infections are here! Are we prepared to face another flavivirus epidemic?
Abstract Emerging arthropod-borne viruses (arboviruses), such as chikungunya and Zika viruses, are a major threat to public health in countries like Brazil where biodiversity is high and medical care is sometimes precarious. West Nile fever is a disease caused by the West Nile Virus (WNV), an RNA virus belonging to the Flaviviridae family. It is transmitted
Rev. Soc. Bras. Med. Trop.. Publicado em: 28/03/2019
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6. Ehrlichia spp. infection in domestic cats from Rio de Janeiro State, southeast Brazil
Resumo A erliquiose é causada por agentes pertencentes ao gênero Ehrlichia . Apesar dos frequentes relatos de detecção sorológica e molecular de E. canis em cães no Brasil, existem poucos dados sobre a erliquiose em gatos brasileiros. Este estudo teve como objetivo investigar a ocorrência de Ehrlichia spp. em gatos domésticos do Grande Rio de Janeir
Rev. Bras. Parasitol. Vet.. Publicado em: 11/03/2019
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7. Lack of evidence of seronegative infection in an endemic area of Chagas disease
ABSTRACT The diagnosis of Chagas disease is based on the detection of Trypanosoma cruzi (T. cruzi)-specific antibodies. Nonetheless, there is concern about the sensitivity of current serological assays due to reports of T. cruzi PCR positivity among seronegative individuals. The aim of this study was to evaluate if T. cruzi seronegative infections occur in e
Rev. Inst. Med. trop. S. Paulo. Publicado em: 14/02/2019
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8. Serological response to Neospora caninum infection in goats and agreement between three diagnostic techniques to detect caprine neosporosis
RESUMO: Objetivou-se avaliar a resposta sorológica de caprinos infectados com Neospora caninum mediante o estudo da performance e concordância de três técnicas sorológicas (RIFI, NAT e ELISA). O painel de soros testes foi composto por 500 amostras de caprinos e ainda 60 soros classificados como de referência. Todos os soros de referência e de campo fo
Pesq. Vet. Bras.. Publicado em: 2019-01
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9. Can sexual transmission support the enzootic cycle of Trypanosoma cruzi?
BACKGROUND Trypanosoma cruzi circulates in sylvatic habitats, mainly through blood-feeding triatomines, although other routes also contribute to its dispersion. Sexual transmission of T. cruzi is an understudied topic, especially among wild mammals. Because of the difficulties inherent to field work, experimentally infected mice are frequently used to evalu
Mem. Inst. Oswaldo Cruz. Publicado em: 2018-01
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10. Surveillance of seroepidemiology and morbidity of Chagas disease in the Negro River, Brazilian Amazon
BACKGROUND Chagas disease in the Brazilian Amazon Region was previously regarded as an enzootic disease of wild animals. More recently, in situations where humans have penetrated the wild ecotope or where triatomines and/or wild animals (marsupials) have invaded human homes resulting in disease transmission, Chagas disease has come to be regarded as an anth
Mem. Inst. Oswaldo Cruz. Publicado em: 2018-01
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11. Nursing infant with acquired toxoplasmosis in the first months of life – a case report
ABSTRACT Toxoplasmosis is caused by Toxoplasma gondii and the probability of this infection occurring in the first months of life is usually low because its transmission is related to eating habits. A 6-month-old nursing infant was diagnosed with acute toxoplasmosis, which was identified through anti- T. gondii IgA, IgM and low-avidity IgG serologic assays,
Rev. Inst. Med. trop. S. Paulo. Publicado em: 24/08/2017
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12. Serological tests fail to discriminate dogs with visceral leishmaniasis that transmit Leishmania infantum to the vector Lutzomyia longipalpis
Abstract INTRODUCTION The control of reservoirs for Leishmania infantum -induced zoonotic visceral leishmaniasis requires the identification of dogs posing a population risk. Here, we assessed the performance of several assays to identify Lutzomyia longipalpis infectious dogs. METHODS We evaluated 99 dogs that were positive for visceral leishmaniasis bas
Rev. Soc. Bras. Med. Trop.. Publicado em: 2017-08