Corresponding authors
Roongtham Kedkovid, Department of Veterinary Medicine, Faculty of Veterinary Science, Chulalongkorn University, Bangkok 10330, Thailand
Email: roongtham.k@chula.ac.th
Roongroje Thanawongnuwech, Department of Veterinary Pathology, Faculty of Veterinary Science, Chulalongkorn University, Bangkok 10330, Thailand
Email: roongroje.t@chula.ac.th