1. Department of Biology, Indiana University, Bloomington, Indiana, USA
2. Department of Microbiology, School of Medicine, University of Washington, Seattle, Washington, USA
3. Department of Medical Microbiology & Immunology, University of Wisconsin-Madison, Madison, Wisconsin, USA
4. Microbiology Doctoral Training Program, University of Wisconsin-Madison, Madison, Wisconsin, USA
5. Pharmaceutical Sciences Division, School of Pharmacy, University of Wisconsin-Madison, Madison, Wisconsin, USA