Affiliation: | 1. Department of Veterinary Microbiology, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, 10330, Thailand 2. Virology section, Department of Animal Health, National Center for Veterinary Diagnosis, Hanoi, Vietnam 3. Epidemiology Division, Department of Animal Health, Hanoi, Vietnam 4. Department of Pharmacognosy and Pharmaceutical Botany, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok, 10330, Thailand
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