1. Department of Microbiology and Immunology; University of Michigan Medical School; 1150 W. Medical Center Drive, 6703 Medical Science Building II Ann Arbor MI 48109
2. Laboratory of Mucosal Pathogens and Cellular Immunity, Division of Bacterial, Parasitic, and Allergenic Products, Office of Vaccines Research and Review; Center for Biologics Evaluation and Research, US Food and Drug Administration; 10903 New Hampshire Avenue, Building 52/72; Rm 3306 Silver Spring MD 20993