J. Vet. Sci. 2017; 18(1): 33-38  https://doi.org/10.4142/jvs.2017.18.1.33
A serological study of severe fever with thrombocytopenia syndrome using a virus neutralization test and competitive enzyme-linked immunosorbent assay
Hyojin Lee1, Eun-Ju Kim1, In-Soo Cho1, Jae-Young Song1, Jeong Soo Choi2, Ji Youn Lee2, Yeun-Kyung Shin1,*
1Viral Disease Division, Animal and Plant Quarantine Agency, Gimcheon 39660, Korea
2Foreign Animal Disease Division, Animal and Plant Quarantine Agency, Gimcheon 39660, Korea
Correspondence to: Yeun-Kyung Shin
Tel: +82-54-912-0801; Fax: +82-54-912-0812; E-mail: shinyk2009@korea.kr
Received: October 1, 2015; Revised: February 11, 2016; Accepted: May 12, 2016; Published online: March 30, 2017.
Abstract
Severe fever with thrombocytopenia syndrome (SFTS) is caused by the SFTS virus (SFTSV). The SFTSV appears to have a wide host range, as SFTSV-positive ticks have been isolated from both farm animals and wild rodents. Therefore, it is important to monitor SFTSV-positive animals to prevent the transmission of SFTSV from animals to humans. Previously, we developed a competitive enzyme-linked immunosorbent assay (cELISA) to detect SFTSV-specific antibodies from field animals and compared the cELISA results to those from an indirect immunofluorescence assay (IFA). In this study, cELISA results were compared to and evaluated against the results from both an IFA and a virus neutralization (VN) test of 193 bovine serum samples (including two bovine positive control sera) and 70 horse serum samples. The consistency (98.9%) between cELISA and VN results was higher than that (97.4%) between cELISA and IFA for the bovine serum samples. Similarly, for the horse serum samples, the consistency (88.6%) between cELISA and VN results was higher than that (84.3%) between the cELISA and IFA. These findings indicate that our newly developed cELISA can be used for surveillance or epidemiological studies of SFTSV in animals.
Keywords: competitive enzyme-linked immunosorbent assay, severe fever with thrombocytopenia syndrome, virus neutralization test


© 2017 The Korean Society of Veterinary Science.