1Department of Virology, Parasitology and Immunology, Faculty of Veterinary Medicine, Ghent University, Belgium
2Department of Biomedical Sciences, Institute of Tropical Medicine, Antwerp, Belgium
3Division of Research and Extension, Royal University of Agriculture, Phnom Penh, Cambodia
4National Veterinary Research Institute, Department of Animal Health and Production, Phnom Penh, Cambodia JFIF d d Ducky d qhttp://ns.adobe.com/xap/1.0/