Acute, fatal Sarcocystis calchasi-associated hepatitis in Roller pigeons (Columba livia f. dom.) at Philadelphia Zoo

作者：Trupkiewicz J G; Calero Bernal R; Verma S K; Mowery J; Davison S; Habecker P; Georoff T A; Ialeggio D M; Dubey J P^*

来源：Veterinary Parasitology, 2016, 216: 52-58.

DOI：10.1016/j.vetpar.2015.11.008

• Sarcocystis calchasi
• Roller pigeons (Columba livia)
• Schizonts
• Hepatitis

Four Roller pigeons (Columba livia f. dom.) at the Philadelphia Zoo died suddenly. Necropsy examination revealed macroscopic hepatitis. Microscopically, the predominant lesions were in liver, characterized with necrosis and mixed cell inflammatory response. Sarcocystis calchasi-like schizonts and free merozoites were identified in liver. Transmission electron microscopy confirmed that schizonts were in hepatocytes. A few schizonts were in spleen. PCR using S. calchasi-specific primers confirmed the diagnosis. Neither lesions nor protozoa were found in brain and muscles. This is the first report of acute visceral S. calchasi-associated sarcocystosis in naturally infected avian hosts. Published by Elsevier B.V.

• 出版日期2016-1-30