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대한바이러스학회 JOURNAL OF BACTERIOLOGY AND VIROLOGY JOURNAL OF BACTERIOLOGY AND VIROLOGY Vol.53 No.2
발행연도
2023.12
수록면
170 - 178 (9page)

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Recent climate change and global warming are likely to increase mosquito-borne diseases. Getah virus (GETV) is a mosquito-borne virus that infects horses and other mammals, including humans. Currently, GETV infection in horse sera is confirmed by the virus neutralization (VN) test. Therefore, there is a need for a new enzyme-linked immunosorbent assay (ELISA) to detect GETV-antibody in a large number of horse serum samples. We aimed to develop a blocking ELISA (B-ELISA) method for the specific detection of GETV antibodies in horse serum samples. Antibodies against GETV in the sera of 175 horses were measured using the VN test. The purified QIAG9301-100P virus was used as an antigen for the B-ELISA. A monoclonal antibody (1E1) was conjugated with horseradish peroxidase and used as a detection antibody. For the establishment of the B-ELISA, antigen concentration, serum dilution factor, and conjugate dilution concentration were determined as 5 μg/mL, 20 times, and 3.6 μg/mL, respectively. We evaluated the sensitivity, specificity, and accuracy of the B-ELISA using sera from 175 horses. The B-ELISA had a diagnostic sensitivity of 91.4%, a specificity of 94.0%, and an accuracy of 93.1% compared with that of the VN test. The B-ELISA was significantly correlated with the VN test (r = 0.83). The new B-ELISA could replace the VN test and be useful for the sero-surveillance of GETV in horse sera. It is also expected to be able to detect GETV antibodies in the serum of various animals including pigs.

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INTRODUCTION
MATERIALS AND METHODS
RESULTS
DISCUSSION
REFERENCES

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