1. Division of Genetics, Wadsworth Center, New York State Department of Health, Albany, New York, USA
2. Department of Microbiology, Immunology, and Pathology, Colorado State University, Fort Collins, Colorado, USA
3. Department of Infectious Diseases and Microbiology, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
4. Department of Biological Sciences, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
5. Department of Biomedical Sciences, University at Albany, Albany, New York, USA