| Revista: | Anais da Academia Brasileira de Ciencias |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000436217 |
| ISSN: | 0001-3765 |
| Autores: | Lima, Pedro C1 Dutra, Iveraldo S2 Araújo, Francisco A.A3 Lustosa, Ricardo1 Zeppelini, Caio G4 Franke, Carlos R1 |
| Instituciones: | 1Universidade Federal da Bahia, Laboratorio de Infectologia Veterinaria, Salvador, Bahia. Brasil 2Universidade Estadual Paulista "Julio de Mesquita Filho", Escola de Medicina Veterinaria, Aracatuba, Sao Paulo. Brasil 3Faculdades Integradas da Uniao Educacional do Planalto Central, Brasilia, Distrito Federal. Brasil 4Universidade Federal da Bahia, Programa de Pos-Graduacao em Ecologia: Teoria, Aplicacao e Valores, Salvador, Bahia. Brasil |
| Año: | 2020 |
| Volumen: | 92 |
| Número: | 1 |
| País: | Brasil |
| Idioma: | Inglés |
| Tipo de documento: | Artículo |
| Enfoque: | Analítico, descriptivo |
| Resumen en inglés | In 2008, 270 wild birds from aquatic environments were found dead or debilitated on the banks of smaller lakes that had been formed due to the decrease in the level of the holding lake of the Sobradinho Dam located on the São Francisco River in the Caatinga of Bahia, Brazil. The outbreak occurred months after the dam’s partial drainage, with the formation of puddles that accumulated decomposing organic material. Amongst the 270 individuals examined and/or found dead, the majority (50%) of the birds found belonged to the Anatidae family. The debilitated birds presented neurological clinical signs including lack of motor coordination, weakness, grave flaccid paralysis in the legs, wings, neck and eyelids, diarrhea, and dyspnea. Tissue samples of the birds were collected, as were water samples and samples of the substrate of the lakes. Zoonotic arboviroses or heavy metals were not detected. Analyses of liver and digestive tract content samples through bioassay and serum neutralization in mice revealed the presence of type C botulinic toxin in the viscerae samples, and type D in sediment samples. According to our knowledge, this is the first record of an outbreak of botulism in wild birds in natural conditions in Brazil |
| Disciplinas: | Biología |
| Palabras clave: | Biología acuática, Aves, Mortalidad masiva, Aves acuáticas, Toxina botulínica, Clostridium botulinum, Brasil |
| Keyword: | Aquatic biology, Birds, Mass mortality, Waterfowls, Botulinum toxin, Clostridium botulinum, Brazil |
| Texto completo: | Texto completo (Ver HTML) Texto completo (Ver PDF) |
