Institution: | 1. Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, California, United States of America.; 2. Department of Pathology, Microbiology and Immunology, University of California Davis, School of Veterinary Medicine, Davis, California, United States of America.; 3. Department of Biochemistry and Microbiology, University of Victoria, Victoria, British Columbia, Canada.; Univ. Georgia, United States of America, |