1. Mycobacteriology Laboratory Branch, Division of Tuberculosis Elimination, Centers for Disease Control and Prevention Atlanta GA USA
2. Infectious Disease Pathology Activity, Division of Viral and Rickettsial Diseases, Centers for Disease Control and Prevention Atlanta GA USA
3. Department of Infectious Diseases, College of Veterinary Medicine, University of Georgia Athens GA USA
4. Biotechnology Core Facility Branch, Scientific Resources Program, Centers for Disease Control and Prevention Atlanta GA USA