1. National Elephant Institute; Hangchart Lampang Thailand
2. Department of Infectious Diseases and Immunology; Faculty of Veterinary Medicine; Utrecht University; Utrecht the Netherlands
3. Department of Veterinary Tropical Diseases; Faculty of Veterinary Science; University of Pretoria; Pretoria South Africa
4. Podiceps BV; Science Park Utrecht; Utrecht the Netherlands
5. Faculty of Veterinary Medicine; Kasetsart University; Nakhonpathom Thailand
6. Faculty of Veterinary Medicine; Chiangmai University; Chiangmai Thailand
7. Cell Biology and Immunology Group; Wageningen University; Wageningen the Netherlands