1. Department of Immunology and Microbiology University of Louisville Louisville Kentucky USA
2. Department of Oral Immunology and Infectious Diseases University of Louisville Louisville Kentucky USA
3. Department of Microbiology Faculty of Biochemistry Biophysics and Biotechnology Jagiellonian University Krakow Poland
4. Center for Microbial Pathogenesis Nationwide Children's Hospital Columbus Ohio USA
5. Department of Pediatrics The Ohio State College of Medicine Columbus Ohio USA