1. Department of Neuroscience, Cell Biology, Physiology, and Immunology, Wright State University School of Medicine, Dayton, OH 45435.
2. Program in Microbiology, Wright State University School of Medicine, Dayton, OH 45435.
3. Department of Neuroscience, Cell Biology, and Physiology, and Program in Microbiology and Immunology, Wright State University School of Medicine, Dayton, OH 45435.