1. Agricultural Research Service; U.S. Department of Agriculture; Plum Island Animal Disease Center; Greenport NY USA
2. Centre for Animal & Plant Biosecurity; NSW Department of Primary Industries; Elizabeth Macarthur Agricultural Institute; Menangle NSW Australia
3. Animal Health Service; Food and Agriculture Organization of the United Nations (FAO); Rome Italy
4. Department of Veterinary Population Medicine; College of Veterinary Medicine; University of Minnesota; Saint Paul MN USA