1. The Graduate School, University of Santo Tomas, Manila 1008, Philippines
2. Department of Medical Microbiology, College of Public Health, University of the Philippines Manila, Ermita, Manila 1000, Philippines
3. Freshwater Aquaculture Center, Central Luzon State University, Nueva Ecija 3120, Philippines
4. Department of Veterinary Microbiology, Faculty of Veterinary Science, Chulalongkorn University, Bangkok 10330, Thailand
5. Department of Fish Diseases and Management, Faculty of Veterinary Medicine, Suez Canal University, Ismailia 41522, Egypt
6. Program of Fisheries Science, Department of Agricultural Science, Faculty of Agriculture, Natural Resources and Environment, Naresuan University, Phitsanulok 65000, Thailand
7. National Fisheries Research and Development Institute, Quezon City 1103, Philippines