1. Bacterial Special Pathogens Branch, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
2. Laboratory of Emerging and Reemerging Pathogens, Postgraduate Program in Medical Microbiology, Federal University of Ceara, Fortaleza, Brazil
3. Postgraduate Program in Veterinary Sciences, State University of Ceara, Fortaleza, Brazil
4. School of Medicine, University of Fortaleza, Fortaleza, Brazil
5. Biotechnology Core Facility Branch, Centers for Disease Control and Prevention, Atlanta, Georgia, USA