Development and evaluation of enzyme-linked immunosorbent assay based on recombinant inorganic pyrophosphatase gene antigen for the detection of Mycoplasma suis antibodies |
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| Authors: | Liu Jianzhu Zhou Dong Cheng Ziqiang Wang Zhenyong Wang Lin Wang Shujing Yang Dubao Chai Tongjie |
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| Institution: | College of Veterinary Medicine and Animal Science, Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, Tai'an 271018, China. liujz@sdau.edu.cn |
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| Abstract: | The recombinant ppa protein of Mycoplasma suis migrated to 21 kDa. Using this antigen, an ELISA system to detect the antibody against M. suis infection in swine was established. The rELISA demonstrated 98.5% specificities among negative samples and 96.9% sensitivity among positive samples with M. suis infection. A comparison of this ELISA system with an indirect hemagglutination assay (IHA) test using 132 swine samples revealed that the positive rate was 34.0% in ELISA and 28.0% in IHA. Compared with IHA, the present rELISA system using recombinant ppa antigen significantly improves the specificity, sensitivity, and stability for serodiagnosis of M. suis infection in swine. |
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