Toxoplasmosis in a Guiana dolphin (Sotalia guianensis) from Parana, Brazil

Autor(es)

Gonzales-Viera, O. ^[1] ; Marigo, J. ^{[1, 2]} ; Ruoppolo, V. ^{[1, 2, 3]} ; Rosas, F. C. W. ^[4] ; Kanamura, C. T. ^[5] ; Takakura, C. ^[6] ; Fernandez, A. ^[7] ; Catao-Dias, J. L. ^[1]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Fac Med Vet & Zootecnia, Dept Patol, Lab Patol Comparada Anim Selvagens LAPCOM, BR-05508270 Sao Paulo - Brazil

^[2] Projeto Biopesca, BR-11700280 Sao Paulo - Brazil

^[3] Int Fund Anim Welf, Yarmouth Port, MA 02675 - USA

^[4] Inst Nacl de Pesquisas da Amazonia, Lab Mamiferos Aquat, BR-69011970 Manaus, Amazonas - Brazil

^[5] Adolfo Lutz Inst, Div Patol, Lab Imunohistoquim, BR-01246000 Sao Paulo - Brazil

^[6] Univ Sao Paulo, Fac Med, Lab Disciplina Patol Doencas Transmissiveis, BR-01246903 Sao Paulo - Brazil

^[7] Univ Las Palmas Gran Canarias, Fac Vet, Inst Univ Sanidad Anim & Seguridad Alimentaria, Arucas 35416, La Palmas - Spain

• Tipo de documento: Artigo Científico
• Fonte: Veterinary Parasitology; v. 191, n. 3-4, p. 358-362, JAN 31 2013.
• Citações Web of Science: 7

Resumo

This study describes toxoplasmosis in a by caught Guiana dolphin (Sotalia guinensis) from Paranagua Bay, Parana, Brazil. Interstitial pneumonia, multisystemic arteritis, multifocal adrenalitis and hepatitis were the primary lesions observed. These tissues had moderate to severe necrosis and mononuclear cells infiltration usually surrounded by tachyzoites and tissue cysts. Moderate lymphoid depletion was evident in the spleen. Toxoplasma gondii was positive by immunohistochemical and ultrastructural evaluation. Furthermore, the animal was negative for Morbillivirus by immunohistochemistry and had low levels of persistent organochlorines. There is evidence of environmental changes in the Paranagua Bay that could justify the occurrence of toxoplasmosis in Guiana dolphin. The sewage run-off from main urban areas and the presence of domestic and wild felids in areas surrounding the bay could be a source of T. gondii oocysts from land to sea. Based on its habitat, the authors recommend this dolphin species as sentinels for the health of bays and estuaries where they occur. Crown Copyright (C) 2012 Published by Elsevier B.V. All rights reserved. (AU)

• Processo FAPESP: 99/12335-8 - Patologia comparada de cetáceos e pinípedes
• Beneficiário: Valéria Ruoppolo
• Modalidade de apoio: Bolsas no Brasil - Mestrado
• Processo FAPESP: 11/08357-0 - Análise de aspectos sanitários de baleias-jubarte (Megaptera novaeangliae) na costa Sudeste e Nordeste do Brasil, com especial ênfase em interações antropogênicas
• Beneficiário: Jose Luiz Catao Dias
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 00/14669-0 - Patologia comparada das principais enfermidades parasitárias de mamíferos marinhos encontrados na costa Sudeste e Sul do Brasil
• Beneficiário: Juliana Marigo
• Modalidade de apoio: Bolsas no Brasil - Mestrado