1. Haskins Laboratories, Pace University, New York, NY 10038, USA
2. Department of Biology, University of Pennsylvania, Philadelphia, PA 19104, USA
3. Department of Veterinary Pathobiology, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX 77843, USA
4. Division of Infectious Diseases, David Axelrod Institute, Wadsworth Center, NYS Department of Health, Albany, NY 1220, USA
5. Seattle Biomedical Research Institute, 307 Westlake Ave N., Seattle, WA 9810, USA
6. Department of Chemistry and Physical Sciences, Pace University, New York, NY 10038, USA