Sousa Davi E R, Wilson Tais M, Machado Mizael, Pereira Alexandra A B G, Costa Gabriela R T, Dutra Valéria, Castro Márcio B
Veterinary Pathology Laboratory, University of Brasília, Via L4 Norte, Campus Universitário Darcy Ribeiro, Asa Norte, Brasília, DF, 70910-900, Brazil.
Environmental Health Surveillance Directorate of the Federal District (DIVAL), SAAN-Estrada do Contorno do Bosque, lote 04, Brasília, DF, 70790-060, Brazil.
Primates. 2019 Mar;60(2):119-123. doi: 10.1007/s10329-018-00713-w. Epub 2019 Jan 12.
Actinomycosis is a very rare infection in wild animals with a few reports in captive non-human primates. Herein we report a case of pulmonary actinomycosis in a free-living black-tufted marmoset in the urban area of the Federal District, Brazil. The animal presented severe dyspnea and died in the garden of a residence. At necropsy, the left-pulmonary lobes showed multiple nodules filled with purulent content. A myriad of beaded, branching, filamentous Gram-positive and modified Ziehl-Neelsen-negative bacilli arranged in aggregates or star-like colonies, surrounded by macrophages, neutrophils, and Splendori-Hoepli phenomenon were observed in histological sections of the lungs. According to the pathological findings and characteristic morphotintorial pattern of the infectious agent, pulmonary actinomycosis was diagnosed. Until now, fatal pulmonary actinomycosis had never been reported in free-living Simiiformes. Knowledge about the diseases that affect commensal free-range simians in urban areas forms the basis for actions aimed at conservation of the species.
放线菌病在野生动物中是一种非常罕见的感染，在圈养的非人灵长类动物中有少数报道。在此，我们报告一例在巴西联邦区市区自由生活的黑簇绒狨猴发生的肺部放线菌病病例。该动物出现严重呼吸困难，死于一处住宅的花园中。尸检时，左肺叶可见多个充满脓性内容物的结节。在肺组织切片中观察到大量串珠状、分支状、丝状革兰氏阳性且改良齐尔-尼尔森染色阴性的杆菌，它们聚集成团或呈星状菌落，周围有巨噬细胞、中性粒细胞，并伴有斯普伦多里-赫普利现象。根据病理结果和感染病原体的特征形态染色模式，诊断为肺部放线菌病。到目前为止，自由生活的类人猿中从未有过致命性肺部放线菌病的报道。了解影响城市地区共生散养猿猴的疾病是采取旨在保护该物种行动的基础。
