1. M. A. Mulvey and S. J. Hultgren, Department of Molecular Microbiology and Microbial Pathogenesis, Box 8230, Washington University School of Medicine, 660 S. Euclid Avenue, St. Louis, MO 63110, USA. Y. S. Lopez-Boado, C. L. Wilson, W. C. Parks, Department of Medicine, Box 8032, Washington University School of Medicine, 660 S. Euclid Avenue, St. Louis, MO 63110, USA. R. Roth and J. Heuser, Department of Cell Biology and Physiology, Box 8228, Washington University School of Medicine, 660 S. Euclid...