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J Wildl Dis. 1997 Jan;33(1):152-7.

Mortality in black siskins (Carduelis atrata) with systemic coccidiosis.

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  • 1Dipartimento di Patologia Animale, Facoltà di Medicina Veterinaria, Pisa, Italy.

Erratum in

  • J Wildl Dis. 2013 Apr;49(2):473. Giacomo, R [corrected to Rossi, G]; Stefania, P [corrected to Perrucci, S]; Ennio, T [corrected to Taccini, E]; Giorgina, V C [corrected to Vitali, C G]; Giovanni, B [corrected to Braca, G]; Giacomo, R [corrected to Renzoni, G].


Ninety-five (97%) of 98 black siskins (Carduelis atrata) died within 2 months of arrival in Italy from South America with the following clinical sings: rapid weight loss, breast muscle atrophy, congested and distended abdomen, diarrhea, and lethargy. Macroscopically we observed hepato-splenomegaly, pulmonary congestion, and thickening of the interstinal wall. Histologically, lymphomonocytic transmural enteritis, interstitial mononuclear cell infiltrates in the lungs and in the liver, as well as activation of splenic follicles were common features. Large numbers of protozoa belonging to Isospora sp. were observed in various stages of their life-cycle in the intestinal epithelium, and some zoites were found in the extra-intestinal cellular infiltrate as well. No viral or bacterial pathogens were found.

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