1. Centre for Clinical Veterinary Medicine LMU Munich Munich Germany
2. The Interuniversity Messerli Research Institute University of Veterinary Medicine Vienna Medical University Vienna Vienna Austria
3. Institute of Pathophysiology and Allergy Research Center of Pathophysiology Infectiology and Immunology, Medical University Vienna Austria
4. Department of Clinical Research and Veterinary Public Health University of Bern Bern Switzerland
5. Faculty of Science Charles University Prague Czech Republic
6. Immunology and Microbiology Department Faculty of Veterinary Medicine Cairo University Giza Egypt
7. School of Veterinary Medicine University of Wisconsin Madison WI USA