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| Catroxo,M. H. B; Bersano,J. G; Martins,A. M. C. P. F; Petrella,S; Portugal,M. A. S. C; Souza,O. S. |
| The myxomatosis is a contagious worldwide disease caused by poxvirus which infects domestic and wild rabbits. In the present study we present two distinct outbreaks of myxomatosis when raising rabbits, one for commercial purpose of production of meat and skins and, another one for the commercialization of ornamental rabbits. The observed signs were ocular, auricular, nasal, testis lesions and many times scattered throughout the body of the animals. The lesions were characterized by formation of nodules that by palpation disclosed gummy or gelatinous aspect. At the transmission electron microscopy, all the skin and crust samples were analyzed by negative staining technique. A great number of particles with morphology similar to the poxvirus, some enveloped... |
| Tipo: Journal article |
Palavras-chave: Myxomatosis; Poxvirus; Rabbits; Transmission electron microscopy. |
| Ano: 2009 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022009000200039 |
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| Catroxo,M. H. B; Martins,A. M. C. P. F; Petrella,S; Milanelo,L; Aschar,M; Souza,F; Nastari,B.D.B; Souza,R.B. |
| Diseases caused by avian paramyxovirus (APMV) occur in commercial, captive and wild birds worldwide, demonstrating the significant economic and ecological importance of these agents. Paramyxoviruses belong to the Paramyxoviridae family, Paramyxovirinae subfamily and Avulavirus genus. During the period 2000 to 2011, stool and small intestine samples of 1647 birds species were sent to the Laboratory of Electron Microscopy, Biological Institute of São Paulo, Brazil, for diagnosis of viral agents. The samples were processed by negative staining (rapid preparation) and resin embedding techniques. Under the transmission electron microscope by negative staining technique, in 294 (17.8%) samples of 1647 were visualized paramyxovirus particles pleomorphic, roughly... |
| Tipo: Journal article |
Palavras-chave: Paramyxoviruses; Avian; Transmission Electron Microscopy. |
| Ano: 2012 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022012000200062 |
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| Catroxo,M. H. B; Pongiluppi,T; Melo,N. A; Milanelo,L; Petrella,S; Martins,A. M. C. P. F; Rebouças,M. M. |
| Avianpox is a highly contagious disease infecting both commercial and wild birds, causing great damages to breeders and breeding. Caused by DNA viruses of the family Poxviridae, genus Avipoxvirus, if manifest through 3 forms, cutaneous, diphtheric and septicemic. In June 2003, during illegal commercialization of Brazilian birds, 800 wild birds (Paroaria dominicana, Sporophila caerulescens and Sporophila albogularis) were apprehended and being forwarded to the CRAS (Wild Animals Recovery Center), Tietê Ecological Park. After one month, birds presented cutaneous lesions in the beak and feet and anorexia, emaciation, locomotion difficulties, diarrhea, dehydration and death. Among the 800 birds, 500 died and 40 these (15 Paroaria dominicana, 15 Sporophila... |
| Tipo: Journal article |
Palavras-chave: Poxvirus; Paroaria dominicana; Sporophila caerulescens; Sporophila albogularis; Transmission electron microscopy. |
| Ano: 2009 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022009000200043 |
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