1. Department of Microbiology, Institute of Biomedical Science, University of São Paulo, São Paulo, Brazil
2. Multidisciplinary Institute of Health, Universidade Federal da Bahia, Vitória da Conquista, Brazil
3. Department of Animal Health and Preventive Veterinary Medicine, College of Veterinary Medicine and Animal Science, University of São Paulo, São Paulo, Brazil
4. Department of Comparative Pathobiology, Purdue University, West Lafayette, Indiana, USA