1. Department of Microbial Pathogenesis, University of Maryland, Baltimore, Baltimore, Maryland, USA
2. Medical Scientist Training Program, University of Maryland, Baltimore, Baltimore, Maryland, USA
3. Department of Microbiology and Immunology, University of Maryland Baltimore, Baltimore, Maryland, USA
4. Departments of Biochemistry and Microbiology, University of Victoria, Victoria, Canada
5. Institute for Genome Sciences, University of Maryland, Baltimore, Baltimore, Maryland, USA
6. Center for Pathogen Research, University of Maryland, Baltimore, Baltimore, Maryland, USA