1. Evaluation of an in-house indirect immunoperoxidase test for detection of antibodies against African swine fever virus.
- Author
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Wu P, McDaniel AJ, Rodríguez YY, Blakemore L, Schumann KR, Chung CJ, and Jia W
- Subjects
- Animals, Swine, Enzyme-Linked Immunosorbent Assay veterinary, Enzyme-Linked Immunosorbent Assay methods, Immunoenzyme Techniques veterinary, Immunoenzyme Techniques methods, African Swine Fever Virus immunology, African Swine Fever Virus isolation & purification, African Swine Fever diagnosis, African Swine Fever virology, Antibodies, Viral blood, Sensitivity and Specificity
- Abstract
African swine fever (ASF) is a high-consequence transboundary animal disease caused by African swine fever virus (ASFV). Given that vaccines are not widely available, ASFV detection, including by molecular and serologic assays, is paramount to efficacious control and mitigation of ASF. ASFV-specific antibodies can be detected as early as 7-10 d postinfection in infected animals and may persist for several months or longer. Accurate detection of ASFV-specific antibody is critical for the identification of chronically infected, subclinically infected, or recovered animals. ELISAs are commonly used for the rapid screening of large numbers of animals for ASFV antibodies. The World Organisation for Animal Health recommends that ELISA-positive results should be confirmed with a second serologic method, such as an indirect immunofluorescent assay, indirect immunoperoxidase test (IPT), or immunoblot test. Commercial kits are not available for those tests. We developed and validated an in-house IPT by using a currently circulating genotype II ASFV strain as antigen. The sensitivity and specificity of the in-house IPT are comparable to the reference IPT developed by an international ASFV reference laboratory and superior to a commercial blocking ELISA., Competing Interests: Declaration of conflicting interestsThe authors declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.
- Published
- 2024
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