1. Bacterial Special Pathogens Branch, Division of High-Consequence Pathogens and Pathology, National Center for Emerging and Zoonotic Infectious Disease, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
2. Biotechnology Core Facility Branch, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
3. Consejo Superior de Investigaciones Cientificas (IRNASA-CSIC), Instituto de Recursos Naturales y Agrobiologia de Salamanca, Salamanca, Spain
4. School of Natural and Environmental Sciences, Newcastle University, Newcastle upon Tyne, United Kingdom