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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

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

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Author(s):
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]
Total Authors: 8
Affiliation:
[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
Total Affiliations: 7
Document type: Journal article
Source: Veterinary Parasitology; v. 191, n. 3-4, p. 358-362, JAN 31 2013.
Web of Science Citations: 7
Abstract

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)

FAPESP's process: 99/12335-8 - Comparative pathology of cetaceans and pinnipeds
Grantee:Valéria Ruoppolo
Support Opportunities: Scholarships in Brazil - Master
FAPESP's process: 11/08357-0 - Analysis of health aspects of humpback whales (Megaptera novaeangliae) in southeastern and northeastern Brazilian coast, with special emphasis on anthropogenic interactions
Grantee:Jose Luiz Catao Dias
Support Opportunities: Regular Research Grants