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Atypical Mycosis in Psittacine Birds: A Retrospective Study

A retrospective study was conducted on parrots submitted from necropsy to the Department of Veterinary Pathology, School of Biosciences and Veterinary, University of Camerino, Italy, from 2007 to 2018. From a total of 2,153 parrots examined at post-mortem, four cases were diagnosed with atypical myc...

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Autores principales: Galosi, Livio, Falcaro, Christian, Danesi, Patrizia, Zanardello, Claudia, Berardi, Sara, Biagini, Lucia, Attili, Anna-Rita, Rossi, Giacomo
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9135461/
https://www.ncbi.nlm.nih.gov/pubmed/35647088
http://dx.doi.org/10.3389/fvets.2022.883276
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author Galosi, Livio
Falcaro, Christian
Danesi, Patrizia
Zanardello, Claudia
Berardi, Sara
Biagini, Lucia
Attili, Anna-Rita
Rossi, Giacomo
author_facet Galosi, Livio
Falcaro, Christian
Danesi, Patrizia
Zanardello, Claudia
Berardi, Sara
Biagini, Lucia
Attili, Anna-Rita
Rossi, Giacomo
author_sort Galosi, Livio
collection PubMed
description A retrospective study was conducted on parrots submitted from necropsy to the Department of Veterinary Pathology, School of Biosciences and Veterinary, University of Camerino, Italy, from 2007 to 2018. From a total of 2,153 parrots examined at post-mortem, four cases were diagnosed with atypical mycosis and were considered for determination of the fungus species by PCR. A Fischer's lovebird (Agapornis fischeri), Peach-faced lovebirds (Agapornis roseicollis), and two Blue and Gold Macaws (Ara ararauna) from four different aviaries died after some days of lethargy and ruffled feathers. Records of gross necropsy and histopathological exams (H&E, PAS, and Grocott stain) were described and biomolecular analyses were carried out. No specific gross lesions were appreciated at necropsy, while histopathology evidenced a systemic mycosis in several organs, particularly in the lungs. In affected organs, broad and non-septate hyphae, suggestive of mycoses, were observed. Molecularly, Mucor racemosus (Fischer's lovebird) and M. circinelloides (Peach-faced lovebirds) were identified from formalin-fixed and paraffin-embedded (FFPE) lung and liver tissue. In addition, Alternaria alternata and Fusicladium spp. (respectively in male and female Blue and Gold macaws) were identified in FFPE tissue from several organs; whereas the role of Mucor spp. as true pathogens is well-demonstrated, and the behavior of A. alternata and Fusicladium spp. in macaws as opportunistic pathogens have been discussed. To our knowledge, this report is the first one reporting mucormycosis caused by M. racemosus and M. circinelloides in lovebirds, and A. alternata and Fusicladium spp. in macaws.
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spelling pubmed-91354612022-05-27 Atypical Mycosis in Psittacine Birds: A Retrospective Study Galosi, Livio Falcaro, Christian Danesi, Patrizia Zanardello, Claudia Berardi, Sara Biagini, Lucia Attili, Anna-Rita Rossi, Giacomo Front Vet Sci Veterinary Science A retrospective study was conducted on parrots submitted from necropsy to the Department of Veterinary Pathology, School of Biosciences and Veterinary, University of Camerino, Italy, from 2007 to 2018. From a total of 2,153 parrots examined at post-mortem, four cases were diagnosed with atypical mycosis and were considered for determination of the fungus species by PCR. A Fischer's lovebird (Agapornis fischeri), Peach-faced lovebirds (Agapornis roseicollis), and two Blue and Gold Macaws (Ara ararauna) from four different aviaries died after some days of lethargy and ruffled feathers. Records of gross necropsy and histopathological exams (H&E, PAS, and Grocott stain) were described and biomolecular analyses were carried out. No specific gross lesions were appreciated at necropsy, while histopathology evidenced a systemic mycosis in several organs, particularly in the lungs. In affected organs, broad and non-septate hyphae, suggestive of mycoses, were observed. Molecularly, Mucor racemosus (Fischer's lovebird) and M. circinelloides (Peach-faced lovebirds) were identified from formalin-fixed and paraffin-embedded (FFPE) lung and liver tissue. In addition, Alternaria alternata and Fusicladium spp. (respectively in male and female Blue and Gold macaws) were identified in FFPE tissue from several organs; whereas the role of Mucor spp. as true pathogens is well-demonstrated, and the behavior of A. alternata and Fusicladium spp. in macaws as opportunistic pathogens have been discussed. To our knowledge, this report is the first one reporting mucormycosis caused by M. racemosus and M. circinelloides in lovebirds, and A. alternata and Fusicladium spp. in macaws. Frontiers Media S.A. 2022-05-12 /pmc/articles/PMC9135461/ /pubmed/35647088 http://dx.doi.org/10.3389/fvets.2022.883276 Text en Copyright © 2022 Galosi, Falcaro, Danesi, Zanardello, Berardi, Biagini, Attili and Rossi. https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Veterinary Science
Galosi, Livio
Falcaro, Christian
Danesi, Patrizia
Zanardello, Claudia
Berardi, Sara
Biagini, Lucia
Attili, Anna-Rita
Rossi, Giacomo
Atypical Mycosis in Psittacine Birds: A Retrospective Study
title Atypical Mycosis in Psittacine Birds: A Retrospective Study
title_full Atypical Mycosis in Psittacine Birds: A Retrospective Study
title_fullStr Atypical Mycosis in Psittacine Birds: A Retrospective Study
title_full_unstemmed Atypical Mycosis in Psittacine Birds: A Retrospective Study
title_short Atypical Mycosis in Psittacine Birds: A Retrospective Study
title_sort atypical mycosis in psittacine birds: a retrospective study
topic Veterinary Science
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9135461/
https://www.ncbi.nlm.nih.gov/pubmed/35647088
http://dx.doi.org/10.3389/fvets.2022.883276
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