Caracterização etiológica, epidemiológica e clínico-patológica da meningoencefalite por herpesvírus bovino em bovinos no Estado de Goiás

Blume, Guilherme Reis; Silva, Lorena F.; Borges, José Renato Junqueira; Nakazato, Luciano; Terra, Juliano Pereira; Rabelo, Rogério Elias; Vulcani, Valcinir Aloísio Scalla; Sant’Ana, Fabiano José Ferreira de

doi:10.1590/1678-5150-pvb-5341

Cited by 4 publications

(5 citation statements)

References 37 publications

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“…Meningoencephalitis caused by BoHV occurred mainly in young cattle, evenly during the study period, and more often in the south and central-west mesoregions (Blume et al 2018). Similar data were obtained in other investigations (Rissi et al 2006, Massitel et al 2016.…”

Section: Discussionsupporting

confidence: 89%

“…Of the 27 cases of meningoencephalitis caused by BoHV diagnosed, 26 were published recently (Blume et al 2018). The other case affected an 18-month-old steer in the municipality of Paraúna.…”

Section: Resultsmentioning

confidence: 99%

“…DNA of the BoHV-5 was amplified in two cases, whereas DNA of the BoHV-1 was identified in one case. For the first time, BoHV-1 was confirmed as a cause of meningoencephalitis in the central-west region of Brazil (Blume et al 2018), although it had already been detected in the south region (Riet-Correa et al 1989, Rissi et al 2008, Rissi & Barros 2013.…”

Section: Discussionmentioning

confidence: 99%

“…Additional samples of the telencephalon, thalamus, cerebellum, and spinal cord were sent, refrigerated or frozen, to the Labvet for diagnosis of rabies by direct immunofluorescence (DIF) and biological assay (BA). Samples that tested negative for rabies and were histologically compatible with bovine herpesvirus infection (BoHV-1 or 5) or lymphoplasmacytic meningoencephalitis were submitted to the Laboratory of Veterinary Microbiology of the Federal University of Mato Grosso (UFMT) for diagnosis of BoHV using Polymerase Chain Reaction (PCR) (Blume et al 2018).…”

Section: Methodsmentioning

confidence: 99%

“…Microscopically, the lesions were evaluated and described qualitatively and quantitatively according to Sant' Ana et al (2009b) and Blume et al (2018).…”

Section: Methodsmentioning

confidence: 99%

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Neurological diseases of cattle in the state of Goiás, Brazil (2010-2017)

et al. 2018

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A retrospective study was conducted on neurological diseases of cattle in the state of Goiás, Brazil, from March 2010 to August 2017. Samples of three veterinary diagnostic laboratories were analyzed. Diagnosis was established in 170 out of 407 cattle with neurological signs. Epidemiological, clinical, and anatomic pathology features of each case were researched in the files. Main disorders included diseases caused by viruses (rabies 29.41%, meningoencephalitis by bovine herpesvirus 15.88%, and malignant catarrhal fever 1.76%), by bacteria (botulism 5.88%, suppurative meningitis 3.53%, encephalic abscesses 2.94%, listeriosis 1.76%, and thrombotic meningoencephalitis 1.76%), of metabolic origin (polioencephalomalacia 17.06%), of indefinite cause (lymphoplasmacytic meningoencephalitis 11.18%, traumatic hemorrhages 3.53%, and multifocal malacia with gliosis 1.18%), congenital (hydrocephaly 1.18% and multiple malformations 0.59%), toxic (urea poisoning 1.18% and insecticide poisoning 0.59%), and parasitic (meningoencephalitis associated with infection by Trypanosoma sp. 0.59%).

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Section: Discussionsupporting

confidence: 89%

Section: Resultsmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

“…Microscopically, the lesions were evaluated and described qualitatively and quantitatively according to Sant' Ana et al (2009b) and Blume et al (2018).…”

Section: Methodsmentioning

confidence: 99%

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Neurological diseases of cattle in the state of Goiás, Brazil (2010-2017)

et al. 2018

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Cattle diseases in Mato Grosso do Sul, Brazil: a 24-year survey (1995-2018)

et al. 2019

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We reviewed the records of 5,083 cattle necropsies performed from January 1995 to December 2018 and filed at the Laboratory of Anatomic Pathology (LAP) of the “Universidade Federal de Mato Grosso do Sul” (UFMS). These necropsies were performed either by LAP-UFMS faculty (22.33%) or by field veterinary practitioners (77.67%) who subsequently submitted material for histological evaluation at the LAP-UFMS. Conclusive diagnoses were reached in 46.21% of the protocols (2,349 cases), and approximately 65% of the cases were classified as inflammatory or parasitic diseases, with rabies being the most diagnosed disease (20.82% of total conclusive diagnosis). There were a large number of protocols in which the diagnosis was of nonsuppurative meningoencephalitis of unknown cause (NSMUC). Those were the main differentials for rabies and bovine herpesvirus-5 necrotizing meningoencephalitis (NME); that is, the number of rabies cases may be even higher if one considers that many cases of NSMUC might be undiagnosed rabies cases. Toxic and toxic-infectious diseases were the second most prevalent category, and botulism cases represented 41% of this category. The other categories corresponded to less than 20% of the total diagnoses and were distributed in decreasing order of frequency as degenerative diseases (9.79%), diseases caused by physical agents (3.87%), other diseases (2.13%), neoplasms and tumor-like lesions (1.79%), metabolic or nutritional disorders (1.75%) and congenital malformations (0.64%). The large number of inconclusive diagnoses was mainly due to improper conditions of mailed-in material for histopathological evaluation, namely, nonrepresentative samples of all organs, autolysis, and the absence of epidemiological and clinical-pathological information.

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Diseases with neurological manifestations diagnosed in cattle in the hospital routine: a retrospective epidemiological study (2009-2019)

Souza,

Soares,

Conceição

et al. 2023

Ciênc. anim. bras.

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Neurological disorders in cattle comprise a group of economically relevant diseases with high occurrence and mortality. In this way, the objective was to carry out an epidemiological study of the diseases with neurological manifestations in cattle admitted (alive or dead) to the Garanhuns Bovine Clinic/Federal Rural University of Pernambuco (CBG/UFRPE) from January 2009 to December 2019. Epidemiological information was collected from the clinical records regarding the age group, rearing system, time of year, and area of origin of the animals. The diseases were grouped into categories according to their origin: toxic or toxi-infectious, viral, traumatic/physical, parasitic, metabolic degenerative, bacterial, neoplastic, and others. A total of 6103 cattle were treated during the study period, of which 604 (10.1%) were diagnosed with diseases that had neurological manifestations. Of these, 331 cases were of single occurrence, and 231 cases occurred as outbreaks in the herd. Death was the outcome in almost 80% of the cases (465/596). The frequencies of the different categories were toxic or toxi-infectious (25.2%), viral (21.5%), traumatic/physical (13.6%), parasitic (9.8%), metabolic (9.3%), degenerative (2.3%), bacterial (2.2%), neoplastic (1.2%), and others (1.2%). It was found that almost half of the animals were older than 24 months (229/475), almost 80% were females, more than 60% were submitted to a semi-intensive to intensive rearing system, and the occurrence of disease was higher during the dry period of the year (363/614). The three most frequent neurological diseases in this study were rabies, trauma, and botulism.

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Caracterização etiológica, epidemiológica e clínico-patológica da meningoencefalite por herpesvírus bovino em bovinos no Estado de Goiás

Cited by 4 publications

References 37 publications

Neurological diseases of cattle in the state of Goiás, Brazil (2010-2017)

Neurological diseases of cattle in the state of Goiás, Brazil (2010-2017)

Cattle diseases in Mato Grosso do Sul, Brazil: a 24-year survey (1995-2018)

Diseases with neurological manifestations diagnosed in cattle in the hospital routine: a retrospective epidemiological study (2009-2019)

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