Avian Dis.: An outbreak of sarcocystosis in psittacines and a pigeon in a zoologic collection in Brazil.
Article Type: Brief article
Subject: Pigeons (Health aspects)
Pigeons (Research)
Sarcocystosis (Risk factors)
Sarcocystosis (Research)
Sarcocystosis (Diagnosis)
Authors: Ecco, R.
Luppi, M.M.
Malta, M.C.C.
Pub Date: 06/01/2009
Publication: Name: Journal of Avian Medicine and Surgery Publisher: Association of Avian Veterinarians Audience: Academic Format: Magazine/Journal Subject: Health Copyright: COPYRIGHT 2009 Association of Avian Veterinarians ISSN: 1082-6742
Issue: Date: June, 2009 Source Volume: 23 Source Issue: 2
Topic: Event Code: 310 Science & research
Geographic: Geographic Scope: Brazil Geographic Code: 3BRAZ Brazil
Accession Number: 252006970
Full Text: This report describes an outbreak of acute pulmonary sarcocystosis in different species of captive psittacine birds and in a Luzon bleeding-heart pigeon (Gallicolumba luzonica) in a zoologic collection in Brazil. A majority of the birds were found dead and had exhibited no previous clinical signs. On gross examination, pulmonary congestion and edema were the most common findings. Enlarged and congested livers and spleens were also frequently observed. On microscopic examination, there was edema, fibrin exudation, congestion, and perivascular and interstitial lymphoplasmacytic infiltration associated with numerous sinuous schizonts of Sarcocystis species in the lungs. Mild-to-moderate myocarditis, hepatitis, splenitis, and interstitial nephritis were also observed in the birds. Immunohistochemistry confirmed Sarcocystis species in the capillaries of lungs, hearts, livers, and spleens of most of the birds, but also in the pancreas, kidney, intestine, proventriculus, and brain of a few birds. The probable source of Sarcocystis species in these birds was the wild opossum (Didelphis albiventris), a common inhabitant of a local forest that surrounds the Belo Horizonte Zoo (Fundacao Zoo-Botanica). This is the first documentation of Sarcocystis infection in psittacine birds and a pigeon from Brazil.

et al. 2008;52:706-710.
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