An African swine fever virus antibody detection method and its application

By screening and connecting the dominant epitope regions of the African swine fever virus p30, p54, and p72 proteins, a highly sensitive and specific ELISA detection method was established, which solved the false negative and false positive problems of the existing detection methods, and achieved more accurate virus antibody detection.

CN115806631BActive Publication Date: 2025-07-18SHANDONG AGRICULTURAL UNIVERSITY
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Patent Information

Application Number
CN202211118203.1
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-09-15
Publication Date
2025-07-18
Estimated Expiration
2042-09-15

AI Technical Summary

Technical Problem

The existing African swine fever virus antibody detection methods are prone to false negative and false positive, and are costly, which cannot effectively meet the needs of vaccine effectiveness evaluation.

Method used

The dominant epitope regions of the African swine fever virus p30, p54, and p72 proteins were screened, and these epitope regions were connected into a recombinant protein through molecular biological technology to serve as coated antigens detected by ELISA to establish a highly sensitive and specific detection method.

Benefits of technology

It improves the sensitivity and specificity of the detection, reduces the false negative and false positive rates, provides more effective ASF virus prevention and control detection methods, and provides a material basis for the evaluation of vaccine effectiveness.

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Abstract

The present invention relates to the field of diagnostic detection of animal virus antibodies, and specifically provides a method for detecting African swine fever virus antibodies and its application. First, the present invention screens the dominant epitope regions of the structural proteins p30, p54, and p72 of African swine fever, tandemly expresses and purifies the three dominant epitope regions using an Escherichia coli expression system, and uses the purified protein as a coating antigen to establish an indirect ELISA method for detecting clinical swine sera. The present invention makes up for the deficiencies of existing domestic and foreign detection methods, and will be more conducive to the monitoring of antibody levels and prevalence generated by ASFV vaccine immunization and wild virus infection.
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