A pantropic canine coronavirus genetically related to the prototype isolate CB/05

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• 作者：Nicola Decaro ; Viviana Mari ; Marcela von Reitzenstein ; Maria Stella Lucente ; Francesco Cirone ; Gabriella Elia ; Vito Martella ; Vickie L. King ; Antonio Di Bello ; Katia Varello ; Shucheng Zhang ; Maria Caramelli ; Canio Buonavoglia
• 关键词：Pantropic canine coronavirus ; Sequence analysis ; Biological characterisation
• 刊名：Veterinary Microbiology
• 出版年：2012
• 出版时间：14 September, 2012
• 年：2012
• 卷：159
• 期：1-2
• 页码：239-244
• 全文大小：995 K

文摘

We report the genetic and biological characterisation of a novel pantropic canine coronavirus (CCoV), strain 450/07, which caused the death of a 60-day-old miniature pinscher. At the genetic level, this virus was strictly related to the prototype strain CB/05, but displayed some unique features. After experimental infection with the new pantropic isolate, most inoculated dogs showed diarrhoea and acute lymphopenia. Gross lesions and histological changes were mainly evident in the gut and lymphoid tissues, although some animals showed remarkable changed also in parenchymatous organs. The viral RNA was detected in the faeces and/or internal organs of most pups. These findings seem to indicate that strain 450/07 is able to spread to internal organs (mainly lymphoid tissues), causing lymphopenia but inducing a mild disease.