Paralytic rabies in swine

Pessoa, Clarice Ricardo de Macêdo; Silva, Maria Luana Cristiny Rodrigues; Gomes, Albério Antônio de Barros; Garcia, Andrea Isabel Estevez; Ito, Fumio; Brandão, Paulo Eduardo; Riet-Correa, Franklin

doi:10.1590/s1517-83822011000100038

Cited by 13 publications

(17 citation statements)

References 13 publications

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“…Botulism causes flaccid paralysis and there are no gross or histologic lesions (Raymundo et al 2012). In rabies there is a non-suppurative encephalomyelitis associated with intracytoplasmatic inclusion bodies (Pessoa et al 2011). Medullar abscesses generally affect one or few pig and there is a suppurative myelitis (De Lahunta & Glass 2009).…”

Section: Discussionmentioning

confidence: 99%

Degenerative axonopathy associated with copper deficiency in pigs

et al. 2017

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RESUMO.-[Axonopatia degenerativa associada com deficiência de cobre em suínos.] São relatados os achados epidemiológicos, clínicos e morfológicos (patológicos e ultraestruturais) de quatro surtos de deficiência de cobre em suínos afetados entre 21 e 90 dias de idade na região Nordeste do Brasil. Os sinais clínicos iniciaram com paraparesia e ataxia, que progrediu a paralisia flácida ou espástica dos membros pélvicos e torácicos, seguido de decúbito esternal e/ou lateral. Além disso, alguns animais apresentaram posição de cão sentado e tremores de intenção. O perí-odo de manifestação clínica variou de 5-20 dias. Não foram observadas lesões macroscópicas significativas; no entanto, microscopicamente, foi observada degeneração simétri-ca da substância branca com fragmentação das bainhas de mielina, contendo ocasionais macrófagos, principalmente na medula espinal. The epidemiological, clinic and morphological (pathological and ultrastructural) aspects of four outbreaks of copper deficiency affecting 21-to 90-day-old pigs in the Northeast region of Brazil are reported. Clinical signs began with paraparesis and ataxia and progressed to flaccid or spastic paralysis of the pelvic and thoracic limbs, followed by sternal and/or lateral recumbence. In addition, some animals showed dog-sitting position and intention tremors. The clinical manifestation period was 5-20 days. Significant gross lesions were not observed; however, microscopically, symmetrical degeneration of the white matter with ballooned myelin sheaths containing occasional macrophages was observed, mainly in the spinal cord. Two pigs presented with necrosis ad loss of Purkinje cells and ectopic Purkinje cells in the granular layer and cerebellar white matter. A ultrastructural analysis showed different degrees of damage of myelinated axons in the spinal segments, including an absence of the axoplasm structures with only axonal residues remaining. The myelin sheaths were degenerated and often collapsed into the space previously occupied by the axon. These results suggest that myelin degeneration is secondary to the axonal lesion. Finally, the concentration of copper in the liver was determined using atomic absorption spectrophotometry and was found to be low (ranging from 2.2 to 10.8 ppm). In conclusion, in the Brazilian semiarid region, Cu deficiency occurs in 21 to 90-day-old pigs that ingested different types of waste in their food.INDEX TERMS: Degenerative myelopathy, axonal degeneration, myelin degeneration, copper deficiency, mineral deficiency, swine.

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Section: Discussionmentioning

confidence: 99%

Degenerative axonopathy associated with copper deficiency in pigs

et al. 2017

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“…Em suínos as lesões são microscópicas e limitadas ao sistema nervoso central. São descritas meningoencefalite mononuclear perivascular, múltiplos focos de gliose (Notici et al 2009;Pessoa et al 2011), além de áreas de malácia com infiltrado de macrófagos (Notici et al 2009) e neuroniofagia (Pessoa et al 2011). A imunofluorescência direta é o teste padrão ouro para o diagnóstico de raiva em animais e humanos por ser um método rápido e sensível (WHO, 2004) Todavia a imuno-histoquímica pode ser utilizada para demonstração do antígeno rábico em tecidos que foram submetidos a fixação em formalina (Stein et al, 2010).…”

Section: Methodsunclassified

Resumos Do Xvi Enapave

Silva¹

2013

AVS

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REALIZAÇÃOUniversidade Federal do Paraná (UFPR) e Associação Brasileira de Patologia Veterinária (ABPV). 3 EDITORIALNo ano de 2013 o periódico Archives of Veterinary Science -AVS cumpriu, mais uma vez, com o seu objetivo de divulgação da ciência, proporcionando a publicação eletrônica dos trabalhos apresentados no XVI Encontro Nacional de Patologia Veterinária (ENAPAVE), Curitiba-Paraná. Neste ano, o AVS atuou como um facilitador da difusão dos conhecimentos sumarizados nos trabalhos científicos submetidos ao XVI ENAPAVE. A comissão científica não economizou esforços para que os resumos aqui apresentados representassem uma fração significativa dos resultados de pesquisas em medicina veterinária. Assim, os resumos serão indexados em bases de dados científicos e, com a certeza de contribuir positivamente para o progresso da patologia veterinária. A todos que contribuíram para o sucesso do evento apresentamos nossos sinceros agradecimentos. Informamos, adicionalmente, que o AVS esta à disposição para submissão -on line‖ de artigos inéditos. Sucesso a todos! Prof. Antônio Waldir Cunha da Silva Editor Chefe do Archives of Veterinary ScienceArchives of Veterinary Science, v. 18, (supl.2) RESUMOs , 2013 4 Archives of Veterinary Science, v. 18, (supl.2) Archives of Veterinary Science, v. 18, (supl.2) RESUMOs , 2013 6 Archives of Veterinary Science, v. 18, (supl.2) RELATO DE 20 CASOS (2009 Archives of Veterinary Science, v. 18, (supl.2) Archives of Veterinary Science, v. 18, (supl.2) RESUMO 001, 2013 11 ÍNDICE ARTIGOS ANIMAIS DE GRANDE PORTE E PRODUÇÃO ABSCESSO CEREBRAL POR PATOLOGIA EXPERIMENTAL E COMPARADA ACHADOS HISTOPATOLOGICOS E HISTOQUIMICOS EM CEBERELO DE COBAIAS EXPERIMENTALMENTE INTOXICADOS PELO EFEITOS DO ÁCIDO FÍTICO EM EXPLANTES INTESTINAIS DE SUÍNOS EXPOSTOS AO DESOXINIVALENOL (DON)E ANIMAIS SELVAGENS E EXÓTICOS ACHADOS DE NECROPSIA EM PINGUINS-DE-MAGALHÃES BALANTIDÍASE FATAL COM ENVOLVIMENTO OCULAR, PULMONAR E CEREBRAL EM RATÃO DO BANHADO (MYOCASTOR COYPUS) ANIMAIS DE PEQUENO PORTE A RELAÇÃO ENTRE OS LINFÓCITOS T, OS MASTÓCITOS E AS CÉLULAS DENDRÍTICAS NO ANIMAIS DE GRANDE PORTE E PRODUÇÃO ABSCESSO CEREBRAL POR CORYNEBACTERIUM PSEUDOTUBERCULOSIS EM UM CAPRINO (Corynebacterium pseudotuberculosis causing brain abscess in a caprine)Alcides Branco da Silva Junior¹, Caroline Rodenbusch Destro¹, Geane Maciel Pagliosa², Aline de Marco Viott², Fernando França Giraldes³, Raimundo Alberto Tostes² 1. Médico veterinário residente, UFPR Setor Palotina, Palotina -PR; 2. Docente do curso de Medicina Veterinária, UFPR-Setor Palotina, Palotina -PR; 3. Técnico do laboratório de patologia UFPR -Setor Palotina, Palotina -PR. RESUMO:A linfadenite caseosa (LC) é uma enfermidade abscedante causada pela bactéria gram. positiva Corynebacterium pseudotuberculosis afetando principalmente os gânglios linfáticos. A principal via de acesso deste microrganismo ao hospedeiro é o contato direto de lesões de continuidade em fômites contaminados. Eventualmente o agente causal cai na circulação sanguínea e atinge...

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“…The introduction of domestic animals has contributed to the increase in populations of vampire bats (Altringham 1996), which have shown a preference for blood consumption of those instead of wildlife in rural communities, especially pigs (Bobrowiec et al 2015). Swine are susceptible to rabies virus, as reported in some regions of Brazil (Silva et al 2008;Nociti et al 2009), and transmission of the virus from D. rotundus has also been reported (Pessoa et al 2011). Rabies is considered one of the most feared diseases in the world due to its high mortality rate and lack of effective treatment (Langoni & Fornazari 2014).…”

Section: Introductionmentioning

confidence: 96%

“…Besides all those impacts, the epidemiological consequences of its presence are also highly relevant. Sus scrofa could act as reservoir for several diseases, such as rabies, leptospirosis, brucellosis and pseudorabies virus (Mason et al 1998;Romero et al 2001;Gresham et al 2002;Silva et al 2008;Pessoa et al 2011). Furthermore, biological features like social and aggressive behaviours, movement and dispersal ability, and high-density occurrence may contribute to disease transmission.…”

Section: Introductionmentioning

confidence: 99%

Hunting practices of feral pigs (Sus scrofa) and predation by vampire bats (Desmodus rotundus) as a potential route of rabies in the Brazilian Pantanal

et al. 2020

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Exotic species are known to cause an impact on native species and the environment through various ecological processes. Their impact on disease dynamics is not completely understood, but their relationship with the local fauna can favour the emergence of zoonoses. We reported records of predation of feral pigs (Sus scrofa) by common vampire bats (Desmodus rotundus) in the Brazilian Pantanal wetland and detailed how the traditional hunting, which involves castration management and hunting dogs, can represent a risk to emergency of rabies virus. With 1.43% of attack probability recorded by camera traps, we highlight the potential role of this interaction in disseminating zoonosis, especially in a scenario where hunting management has been prioritised as a policy tool in the control of exotic species. We alerted for the danger of rabies onset. Moreover, we suggested that the ranchers avoid contact with the pigs' salivary secretions during hunting, to maintain up to date rabies vaccination on domestic animals, and pay attention to the clinical behaviours of rabies in their hunting dogs. Therefore, we must be aware of all the risks involved in interactions between humans and wildlife to reevaluate our practices and prevent viral outbreaks as we currently witness.

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Paralytic rabies in swine

Cited by 13 publications

References 13 publications

Degenerative axonopathy associated with copper deficiency in pigs

Degenerative axonopathy associated with copper deficiency in pigs

Resumos Do Xvi Enapave

Hunting practices of feral pigs (Sus scrofa) and predation by vampire bats (Desmodus rotundus) as a potential route of rabies in the Brazilian Pantanal

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