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Canine parvovirus types 2a and 2c detection from dogs with suspected parvoviral enteritis in Peru

机译:在秘鲁怀疑有细小病毒肠炎的狗中检出2a和2c型犬细小病毒

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摘要

Canine parvovirus type 2 (CPV-2) has been reported worldwide as the main agent related to acute hemorrhagic enteritis of high morbidity and variable mortality in puppies. The detection and characterization of this virus is essential to understand the etiology of the disease and to develop control measures. To characterize the virus circulating in Peruvian dogs and to provide new insights into the local diversity of CPV-2, rectal swabs from 39 puppies with clinical symptoms and with no history of previous vaccinations were analyzed. Total DNA was extracted by fast boiling method, and PCR and sequencing were performed using specific primers that amplify a 1316 bp fragment corresponding to the VP2 gene of CPV-2. CPV-2 was detected in 62% of the analyzed samples. The sequencing of PCR product was possible in 9 samples, which were identified as type 2a (4 samples) and type 2c (5 samples). A phylogenetic analysis of both variants circulating in Peruvian dogs showed similarities to Equatorian and Uruguayan strains. This work constitutes the first report about genetic characterization of CPV-2 in Peru.
机译:犬细小病毒2型(CPV-2)已被全世界报道为与幼犬高发病率和可变死亡率的急性出血性肠炎有关的主要药物。该病毒的检测和表征对于了解该病的病因和制定控制措施至关重要。为了表征在秘鲁犬中传播的病毒并为CPV-2的局部多样性提供新的见解,对来自39只有临床症状且无先前疫苗接种史的幼犬的直肠拭子进行了分析。通过快速煮沸法提取总DNA,并使用特异性引物进行PCR和测序,所述引物扩增对应于CPV-2 VP2基因的1316bp片段。在62%的分析样品中检测到了CPV-2。可以对9个样品进行PCR产物测序,这些样品被鉴定为2a型(4个样品)和2c型(5个样品)。对在秘鲁狗中传播的两种变体的系统发育分析表明,它们与赤道和乌拉圭菌株相似。这项工作是秘鲁有关CPV-2遗传特征的第一份报告。

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