Development of Indirect ELISA for the Detection of Canine Adenovirus Type 2 Antibodies in Dog Sera
Overview
Affiliations
Background: Canine adenovirus type 2 (CAV-2) induces infectious laryngotracheitis in members of the family Canidae, including dogs. To date, no ELISA kits specific for CAV-2 antibody have been commercialized for dogs in Korea.
Objectives: We aimed to develop new indirect enzyme-linked immunosorbent assay (I-ELISA) to perform rapid, accurate serological surveys of CAV-2 in dog serum samples.
Methods: In total, 165 serum samples were collected from dogs residing in Chungbuk and Gyeongbuk provinces between 2016 and 2018. The Korean CAV-2, named the APQA1701-40P strain, was propagated in Madin-Darby canine kidney cells and purified in an anion-exchange chromatography column for use as an antigen for I-ELISA. The virus-neutralizing antibody titers of CAV-2 in the dog sera were measured by virus neutralization (VN) test.
Results: We compared the results obtained between the VN and new I-ELISA tests. The sensitivity, specificity, and accuracy of new I-ELISA were 98.6%, 86.4% and 97.0% compared with VN test, respectively. New I-ELISA was significantly correlated with VN ( = 0.91).
Conclusions: These results indicate that new I-ELISA is useful for sero-surveillance of CAV-2 in dog serum.
Zhang Z, Guo W, Lu Y, Kang Q, Sui L, Liu H Virol J. 2023; 20(1):255.
PMID: 37924080 PMC: 10623766. DOI: 10.1186/s12985-023-02217-6.