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Detection and Differentiation of CAV-1 and CAV-2 by Polymerase Chain Reaction

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Abstract

Canine adenovirus type 1 (CAV-1) and type 2 (CAV-2) can be categorized in the laboratory by haemagglutination and neutralization tests, but they are difficult to differentiate from each other in specimens, especially when infection occurs in the digestive tract. The object of this study was to develop a simple method of detecting and differentiating them. One pair of common primers was designed and synthesized according to the sequences of the E3 and flanking regions and a polymerase chain reaction (PCR) assay was established using these two primers to amplify the virus-specific DNA fragment from clinical specimens as well as from cell cultures. After electrophoresis, under the same amplification conditions, 508 bp and 1030 bp PCR products were observed for CAV-1 and CAV-2, respectively. These were further shown to be adenovirus specific by dot hybridization and sequencing. As only one pair of primers was involved in the PCR procedure, it was faster and easier to perform than any of the other assays used for detecting canine adenovirus, making it applicable in the rapid confirmation of diagnosis and differentiation of the two types of canine adenoviruses.

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Authors and Affiliations

  1. Laboratory of Virology, Veterinary Institute, Changchun University of Agriculture and Animal Sciences, Changchun, 130062, China

    R.L. Hu, G. Huang, W. Qiu, Z.H. Zhong, X.Z. Xia & Z. Yin

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  1. R.L. Hu
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  2. G. Huang
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  3. W. Qiu
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  4. Z.H. Zhong
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  5. X.Z. Xia
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  6. Z. Yin
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Hu, R., Huang, G., Qiu, W. et al. Detection and Differentiation of CAV-1 and CAV-2 by Polymerase Chain Reaction. Vet Res Commun 25, 77–84 (2001). https://doi.org/10.1023/A:1006417203856

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  • DOI: https://doi.org/10.1023/A:1006417203856

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