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Volume 28, Number 7—July 2022
Research Letter

Bagaza Virus in Wild Birds, Portugal, 2021

João QueirósComments to Author , Sílvia C. Barros, Alberto Sánchez-Cano, Ana Margarida Henriques, Teresa Fagulha, Fábio Abade dos Santos, Margarida D. Duarte, Catarina Fontoura-Gonçalves, David Gonçalves, Marisa Rodrigues, Teresa Cardona Cabrera, Isabel G. Fernández de Mera, Christian Gortazar, Ursula Höfle, and Paulo Célio Alves
Author affiliations: Universidade do Porto Centro de Investigação em Biodiversidade e Recursos Genéticos, Vairão, Portugal (J. Queirós, C. Fontoura-Gonçalves, D. Gonçalves, M. Rodrigues, P.C. Alves); Estação Biológica de Mértola, Mértola, Portugal (J. Queirós, D. Gonçalves, M. Rodrigues, P.C. Alves); Universidade do Porto, Porto, Portugal (J. Queirós, D. Gonçalves, P.C. Alves); Instituto Nacional de Investigação Agrária e Veterinária, Oeiras, Portugal (S.C. Barros, A.M. Henriques, T. Fagulha, F.A. Abade dos Santos, M.D. Duarte); Instituto de Investigación en Recursos Cinegéticos, Ciudad Real, Spain (A. Sánchez-Cano, T.C. Cabrera, I.G. Fernández de Mera, C. Gortazar, U. Höfle)

Main Article

Figure

Microscopic lesions caused by Bagaza virus infection in liver, heart, kidney, and brain tissue of red-legged partridges (Alectoris rufa), Portugal, 2021. A) In liver, congestion, hemozoin presence in Kupffer cells, focal hepatocyte necrosis, and a moderate mononuclear infiltrate are visible despite some freezing artifacts. B) In heart, congestion, hemorrhage, edema, degeneration of myofibers of the myocardium, and endothelial swelling and moderate to abundant diffuse mononuclear infiltrates are visible. C) In kidney, tubulointerstitial nephritis characterized by congestion, hemorrhage necrosis of proximal convoluted tubular epithelium, and diffuse moderate to abundant mononuclear inflammatory infiltrate are visible. D) In brain, mild nonpurulent encephalitis with congestion, mononuclear cell extravasation, and endothelial cell swelling are visible. Hematoxilin eosin staining; original magnification ×400.

Figure. Microscopic lesions caused by Bagaza virus infection in liver, heart, kidney, and brain tissue of red-legged partridges (Alectoris rufa), Portugal, 2021. A) In liver, congestion, hemozoin presence in Kupffer cells, focal hepatocyte necrosis, and a moderate mononuclear infiltrate are visible despite some freezing artifacts. B) In heart, congestion, hemorrhage, edema, degeneration of myofibers of the myocardium, and endothelial swelling and moderate to abundant diffuse mononuclear infiltrates are visible. C) In kidney, tubulointerstitial nephritis characterized by congestion, hemorrhage necrosis of proximal convoluted tubular epithelium, and diffuse moderate to abundant mononuclear inflammatory infiltrate are visible. D) In brain, mild nonpurulent encephalitis with congestion, mononuclear cell extravasation, and endothelial cell swelling are visible. Hematoxilin eosin staining; original magnification ×400.

Main Article

Page created: June 09, 2022
Page updated: June 18, 2022
Page reviewed: June 18, 2022
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