Hawkins Ian K, Ilha Marcia, Anis Eman, Wilkes Rebecca P
Tifton Veterinary Diagnostic and Investigational Laboratory, University of Georgia, Tifton, GA (Hawkins, Ilha, Anis, Wilkes).
Department of Virology, Faculty of Veterinary Medicine, University of Sadat, Sadat City, Egypt (Anis).
J Vet Diagn Invest. 2017 Sep;29(5):700-703. doi: 10.1177/1040638717719479. Epub 2017 Jul 5.
Listeriosis is a disease of humans and domestic mammals (mainly ruminants) with variable manifestations, primarily encephalitis, septicemia, and abortion. Although Listeria monocytogenes readily causes illness in ruminants, the prevalence among domestic South American camelids (llamas and alpacas) is low and has not been documented in their wild counterparts, the vicuna and guanaco. We describe herein the clinical signs, autopsy findings, and histopathology of septicemia and suppurative meningoencephalitis caused by L. monocytogenes in 2 neonatal llamas ( Llama glama) from the same herd. L. monocytogenes was isolated in pure culture and identified by real-time PCR on fresh and paraffin-embedded tissue samples of the brain from both crias. This presentation of septicemic listeriosis with meningoencephalitis in 2 animals from the same group is unusual, especially among llamas.
李斯特菌病是一种在人类和家养哺乳动物（主要是反刍动物）中出现的疾病，表现多样，主要为脑炎、败血症和流产。虽然单核细胞增生李斯特菌很容易在反刍动物中引发疾病，但在南美家养骆驼科动物（美洲驼和羊驼）中的患病率较低，在它们的野生同类骆马和原驼中尚未有相关记录。在此，我们描述了来自同一群体的2只新生美洲驼（小羊驼）由单核细胞增生李斯特菌引起的败血症和化脓性脑膜脑炎的临床症状、尸检结果及组织病理学情况。单核细胞增生李斯特菌在纯培养物中分离得到，并通过对两只小羊驼新鲜和石蜡包埋的脑组织样本进行实时聚合酶链反应进行鉴定。同一组中的2只动物出现败血症性李斯特菌病合并脑膜脑炎的情况并不常见，尤其是在美洲驼中。
