1. Microbiology Doctoral Training Program,
2. Medical Scientist Training Program,
3. Department of Medical Microbiology and Immunology, and
4. Department of Pediatrics, University of Wisconsin-Madison, Madison, WI;
5. Department of Pediatrics, University of Iowa, Carver College of Medicine, Iowa City, IA; and
6. Department of Biostatistics and Medical Informatics, University of Wisconsin-Madison, Madison, WI