1. Animal Virology Laboratory, School of Life Sciences, BK21 Plus KNU Creative BioResearch Group, Kyungpook National University, Daegu 41566, Korea.
2. Animal Disease Diagnostic Division, Animal and Plant Quarantine Agency, Gimcheon 39660, Korea.
3. College of Veterinary Medicine, Kyungpook National University, Daegu 41566, Korea.
4. College of Veterinary Medicine, Jeju National University, Jeju 63243, Korea.