Asano K M, Gregori F, Souza S P, Rotava D, Oliveira R N, Villarreal L Y B, Richtzenhain L J, Brandão P E
Department of Preventive Veterinary Medicine and Animal Health, College of Veterinary Medicine, University of São Paulo, Av. Professor Dr. Orlando Marques de Paiva, 87, CEP: 05508-270, Cidade Universitária, São Paulo, SP, Brazil.
Avian Dis. 2011 Dec;55(4):697-700. doi: 10.1637/9765-041911-ResNote.1.
Rotaviruses are the main agents responsible for diarrhea in different animal species and for infantile gastroenteritis. These viruses have been isolated from various avian species and have often been associated with poult enteritis and mortality syndrome. Nevertheless, the knowledge of rotavirus infection in turkeys is scarce. Six group A rotavirus strains obtained from pooled enteric contents of diarrheic turkeys were isolated in MA-104 cell culture and typed as G(6)P(1), a typical bovine rotavirus genotype. Additionally, the electropherotypes showed a migration pattern identical to the Nebraska calf diarrhea virus, and the complete NSP4 gene phylogeny showed that all six strains segregated in the genotype E2. Taken together, these results point toward a cattle-to-turkey rotavirus transmission. As a conclusion, bovine-origin rotavirus can be found in turkeys, and this transmission route must now be considered for the improvement of the health status in turkey farms.
轮状病毒是导致不同动物物种腹泻和婴幼儿肠胃炎的主要病原体。这些病毒已从多种禽类中分离出来,并且常常与雏禽肠炎和死亡综合征有关。然而,关于火鸡轮状病毒感染的了解却很少。从腹泻火鸡的肠道内容物中分离出的6株A组轮状病毒毒株,在MA - 104细胞培养物中进行培养,并被鉴定为G(6)P(1)型,这是一种典型的牛轮状病毒基因型。此外,电泳图谱显示出与内布拉斯加小牛腹泻病毒相同的迁移模式,并且完整的NSP4基因系统发育分析表明,所有6株毒株都归为E2基因型。综上所述,这些结果表明存在从牛到火鸡的轮状病毒传播。总之,火鸡中可发现源自牛的轮状病毒,现在必须考虑这种传播途径,以改善火鸡养殖场的健康状况。