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Lou, Z., Li, X., Li, Z., Yin, X., Li, B., Lan, X., Yang, B., Zhang, Y. and Liu, J. (2011) Expression and Antigenicity Characterization for Truncated Capsid Protein of Porcine Circovirus Type 2. Canadian Journal of Veterinary Research, 75, 61-64.

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• TITLE: The Development and Application of an Indirect ELISA Test for the Detection of Chicken Anaemia Virus (CAV) by VP1 in Chicken Flock Serum

  AUTHORS: Elham O. Mahgoub

  KEYWORDS: Indirect ELISA, Commercial ELISA, Chicken Anaemia Virus, Recombinant Protein VP1, Sensitivity, Specificity, Standard Curve for Indirect ELISA

  JOURNAL NAME: Open Journal of Genetics, Vol.4 No.4, July 23, 2014

  ABSTRACT: Chicken anaemia virus (CAV) causes a viral disease in chickens worldwide and thus has economic importance. The main aim of this study was to develop a rapid, sensitive and specific VP1-CAVI indirect ELISA for the detection of CAV infection. The CAV-VP1, was separately cloned and expressed in recombinant E. coli. The purified recombinant CAV-VP1 protein was then coated as an antigen on an ELISA plates to evaluate its reactivity against chicken sera. The resulting indirect ELISA was then compared with a commercial ELISA. The specificity and sensitivity of the indirect ELISA were measured as 93.3% and 100%, respectively. A t-test produced a t-value of 15.805 for the indirect ELISA and revealed a significant difference between CAV-positive serum and CAV-negative serum (p-value of 0.001). For the second variable (i.e., a commercial ELISA), the t-test yielded a t-value of 5.063, which revealed a significant difference between CAV-positive serum and CAV-negative serum (p-value of 0.015). This intervention produces statistically significant improvements in both variables (p-values r = 0.93. Therefore, this work can be considered as a new achievement in diagnosis for Chicken anaemia virus in chicken flocks.