1. Central Disease Investigation Laboratory 48 Kazi Alauddin RoadDhaka Bangladesh
2. Department of Livestock Services Krishi Khamar Sarak Farmgate Dhaka‐1215Bangladesh
3. Food and Agriculture Organisation of the United Nations Emergency Centre for Transboundary Animal Disease (FAO‐ECTAD) Dhaka Bangladesh
4. International Center for Diarrhoeal Disease Research (icddr,b) Dhaka 1212Bangladesh
5. Department of Medicine Bangladesh Agricultural University Mymensingh 2202Bangladesh
6. Sydney School of Veterinary Science The University of Sydney 425 Werombi RoadCamden 2570 NSWAustralia