1. Department of Pathology, University of Michigan Medical School, Ann Arbor, Michigan, USA
2. Institut Pasteur, Microbial Evolutionary Genomics, Paris, France
3. BRCF Bioinformatics Core, University of Michigan, Ann Arbor, Michigan, USA
4. Department of Biostatistics, School of Public Health, University of Michigan, Ann Arbor, Michigan, USA
5. Division of Infectious Diseases, Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, Michigan, USA
6. Section of Infectious Diseases, Veterans Affairs Ann Arbor Healthcare System, Ann Arbor, Michigan, USA