1. Agrarian Superior School; Polytechnic Institute of Viseu; Viseu Portugal
2. Laboratory of Microbiology; Department of Biological Sciences; Faculty of Pharmacy; University of Oporto; Porto Portugal
3. Animal and Veterinary Research Centre (CECAV); University of Trás-os-Montes and Alto Douro; Vila Real Portugal
4. Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB); University of Trás-os-Montes and Alto Douro; Vila Real Portugal
5. Epidemiology Research Unit (EPIUnit); Institute of Public Health; University of Porto; Porto Portugal