Affiliation: | 1Division of Basic Biomedical Sciences, The Sanford School of Medicine of the University of South Dakota, Vermillion, South Dakota;2Department of Microbiology and Immunology, The University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma;3Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, Nebraska;4Department of Microbiology and Immunology, University of Rochester, Rochester, New York |