1. Centers for Disease Control and Prevention, Atlanta, Georgia, USA;
2. Division of Infectious Diseases, Illinois Department of Public Health, Chicago, Illinois, USA;
3. Division of Infectious Diseases, and
4. Division of Environmental Health, Illinois Department of Public Health, Springfield, Illinois, USA;
5. Macon County Health Department, Decatur, Illinois, USA;
6. Kankakee County Health Department, Division of Chronic and Communicable Disease, Kankakee, Illinois, USA;
7. Ford-Iroquois Public Health Department, Watseka, Illinois, USA;
8. Mycotic Diseases Branch, Centers for Disease Control and Prevention, Atlanta, Georgia, USA;
9. University of Illinois Chicago, School of Public Health, Chicago, Illinois, USA