Mannheimiose pulmonar experimental em bezerros: swab nasal e nasofaringeano como auxílio diagnóstico

Coutinho, Amaury; Filho, José Paes de Oliveira; Silva, Daniel Pessoa Gomes da; Oliveira, Andreza Pimenta de; Marcondes, Júlio Simões; Chiacchio, Simone Biagio; Paes, Antônio Carlos; Siqueira, Amanda Keller; Amorim, Rogério Martins; Gonçalves, Roberto Calderón

doi:10.1590/s0100-736x2009000100013

Cited by 3 publications

(2 citation statements)

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“…Sheep with respiratory disease often show depression, inappetence, high rectal temperature, dyspnea, coughing, mucopurulent or purulent nasal discharge and increased cardiac and respiratory rates (Scott 2011). Only a few studies aimed detect the bacterial etiology of pneumonic sheep in Brazil (Coutinho et al 2009, Marcondes et al 2011. Therefore, herein it was detected the bacterial etiology of respiratory disease and their relationship to clinical signs of sheep respiratory disease.…”

Section: Introductionmentioning

confidence: 99%

Bacteria isolated from the lower respiratory tract of sheep and their relationship to clinical signs of sheep respiratory disease

et al. 2019

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Respiratory diseases are among the most important diseases in sheep flocks. Herein was studied the bacterial etiology of respiratory disease and the clinical signs of 99 female and male sheep breed in the states of São Paulo (SP) and Rio de Janeiro (RJ), Brazil. After physical examination of animals, tracheobronchial flushing samples were obtained. The usual bacteria and Mycoplasma spp. were searched, as well as their association with the clinical status and clinical signs of sheep with respiratory disease. The main observed signs were: tachypnea (75%), increase of rectal temperature (09.4%), mucopurulent/purulent nasal discharge (21.9%), cough (25%), dyspnea (31.2%), changes of lung sounds at auscultation (87.5%) and chest percussion (28.1%) in pneumonic sheep. Non-fermenting gram-negative bacteria and Bacillus sp. were the most isolated bacteria. Microorganisms of the Mollicutes class were molecularly (PCR) detected in 33.3% of the animals. In addition, the specific detection of M. mycoides subsp. capri was described for the first time in sheep from the state of São Paulo, Brazil.

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Section: Introductionmentioning

confidence: 99%

Bacteria isolated from the lower respiratory tract of sheep and their relationship to clinical signs of sheep respiratory disease

et al. 2019

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“…Por último, la frecuencia de anticuerpos contra HVBo-1 fue similar a las encontradas en los estados brasileños de Espírito Santo (Santos et al, 2014) y Maranhão (Chaves et al, 2012) y mayores que la encontrada en los asentamientos en el estado de São Paulo (Gaeta et al, 2018) y en Rio Grande do Sul (Becker et al, 2015). El muestreo, la edad de los animales y las distintas pruebas diagnósticas empleadas pueden estar relacionadas con los diferentes resultados encontrados en otros estudios (Coutinho et al, 2009). Los sistemas de cría de tipo semi-intensivo o intensivo permiten la aglomeración de los animales, facilitando la transmisión de agentes infecciosos.…”

Section: Discussionunclassified

Estudio serológico frente a los virus respiratorios en terneros en un sistema semi-intensivo y su relación con la sintomatología respiratoria

2019

Veterinaria (Montev.)

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ResumenLas enfermedades respiratorias de los terneros son un problema sanitario importante debido a que cursan con altas tasas de morbilidad y mortalidad, originando grandes pérdidas económicas. El objetivo de este estudio fue determinar la presencia de anticuerpos séricos frente a los principales agentes etiológicos virales relacionados con la bronconeumonía en bovinos (virus de la diarrea viral bovina, herpesvirus bovino tipo-1 y virus respiratorio sincitial bovino), evaluando la asociación entre la presencia de anticuerpos y las manifestaciones clínicas. Se estudiaron 63 terneros pertenecientes a dos rebaños del estado de Sao Paulo (Brasil). Los animales fueron divididos en dos grupos: animales sanos y enfermos con sintomatología respiratoria después del examen físico. Se extrajo sangre para la posterior detección de anticuerpos en suero por neutralización viral y se estudió la asociación entre los signos clínicos y los hallazgos serológicos. Los anticuerpos frente al virus de la diarrea viral bovina, herpesvirus bovino tipo-1 y virus respiratorio sincitial bovino se detectaron respectivamente en el 57,10%, el 66,70% y el 93,70% de las muestras. Se observó una mayor frecuencia de anticuerpos contra el virus de la diarrea viral bovina en animales con exudado nasal seroso / mucoso (P = 0,01). Los animales deshidratados (P = 0,008) y aquellos con temperatura rectal por encima de 39,5 ºC (P = 0,03) presentaron con mayor frecuencia anticuerpos frente al virus respiratorio sincitial bovino. El presente trabajo presentó resultados de seropositividad más elevados a los encontrados en otros estudios realizados en granjas con un sistema de manejo extensivo, confirmando la importancia del manejo en la transmisión de estos microorganismos.Palabras clave: Virus de la diarrea viral bovina, Herpesvirus bovino tipo-1, Virus respiratorio sincitial bovino, Serología, Neumonía Estudio serológico frente a los virus respiratorios en terneros en un sistema semi-intensivo y su relación con la sintomatología respiratoria SummaryRespiratory diseases are a major health problem due to the high morbidity and mortality rates, with great economic losses. The aim of this study was to determine the frequency of antibodies against the main viral etiological agents related to bronchopneumonia in cattle (bovine viral diarrhea virus, bovine herpesvirus type-1 and bovine respiratory syncytial virus), searching for associations between these agents and the clinical signs observed. We studied 63 calves from two herds from São Paulo, Brazil. After physical examination, the calves were divided into healthy calves and calves with respiratory disease. Serum was obtained for subsequent detection of antibodies by viral neutralization. The association between clinical signs and serological findings was studied. Antibodies against bovine viral diarrhea virus, bovine herpesvirus type-1 and bovine respiratory syncytial virus were detected in 57.10%, 66.70% and 93.70% of the samples. A higher frequency of antibodies against bovine viral diarrhea virus was obs...

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Bovine respiratory disease in Brasil: a short review

Castro¹,

Oliveira²,

Headley³

2021

Semina: Ciênc. Agrár.

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The bovine respiratory disease (BRD) complex is a multifactorial and multietiological disease entity described in all geographic regions of Brazil. This brief review discusses aspects related to epidemiology, etiologic agents, clinical and pathological manifestations, and challenges in the diagnosis of BRD in Brazil. The main infectious disease agents associated with respiratory outbreaks in cattle from Brazil are bovine alphaherpesvirus type 1, bovine viral diarrhea virus, bovine respiratory syncytial virus, and Mycoplasma bovis. Ovine gammaherpesvirus-2 and HoBi-like pestivirus have been associated with the development of pneumonia in adult cattle and calves, respectively in Brazil, and should be considered as possible causes of BRD. Additionally, studies using epidemiological data, histopathological and molecular associations with morbidity and mortality should be carried out in Brazil, to demonstrate the real impacts of BRD on livestock.

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Mannheimiose pulmonar experimental em bezerros: swab nasal e nasofaringeano como auxílio diagnóstico

Cited by 3 publications

References 20 publications

Bacteria isolated from the lower respiratory tract of sheep and their relationship to clinical signs of sheep respiratory disease

Bacteria isolated from the lower respiratory tract of sheep and their relationship to clinical signs of sheep respiratory disease

Estudio serológico frente a los virus respiratorios en terneros en un sistema semi-intensivo y su relación con la sintomatología respiratoria

Bovine respiratory disease in Brasil: a short review

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