Acta Veterinaria et Zootechnica Sinica ›› 2020, Vol. 51 ›› Issue (2): 329-336.doi: 10.11843/j.issn.0366-6964.2020.02.014

• PREVENTIVE VETERINARY MEDICINE • Previous Articles     Next Articles

Establishment of Indirect ELISA for Detecting Antibody to Contagious Bovine Pleuropneumonia

HAO Wenjun1, LI Yuan1, ZHOU Xiaoqian2, WANG Xiumei1*, XIN Jiuqing1*   

  1. 1. Animal Mycoplasma Innovation Team, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin 150069, China;
    2. College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
  • Received:2019-08-15 Online:2020-02-23 Published:2020-02-22

Abstract: An indirect ELISA was developed for detecting antibodies to Mycoplasma mycoides subsp. mycoides SC (MmmSC), the agent of contagious bovine pleuropneumonia (CBPP), and used for CBPP surveillance. Based on bioinformatics assay of the whole genome sequence of MmmSC isolates Ben-1, lipoprotein rP0308 was selected as coating antigen. An indirect ELISA was established after optimization of a series of conditions, and its performance was evaluated. As a result, the diagnostic sensitivity and specificity of the indirect ELISA were 92% and 96%, respectively. The ELISA did not react with other antibodies against Mycoplasma bovis, Mycoplasma bovirhinis, Mycoplasma agalactiae, foot and mouth disease, bovine infectious rhinotracheitis, Mycobacterium tuberculosis. Reproducibility analysis revealed that the coefficients of variation of samples within and between runs were 2.41%-6.03%, and 2.94%-6.59%, respectively. One thousand six hundred and forty-eight serum samples from our lab were tested using this ELISA system and a commercial kit, a total of 1 405/1 576 (89.1%) of the sera found positive in the commercial kit were also positive in the ELISA, and 57/72 (79.2%) of the sera found negative in the both system. The overall coincidence was 88.7%. The above results suggested that the established ELISA demonstrated high specificity, sensitivity and reproducibility, and could be a promising tool applied in the field.

Key words: contagious bovine pleuropneumonia, rP0308, indirect ELISA

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