1. Department of Chemistry; University of Florida; Gainesville; FL; USA
2. Institute for Immunology and Infectious Diseases; University of Murdoch; Perth; WA; Australia
3. Division of Vaccine Discovery; La Jolla Institute for Allergy and Immunology; La Jolla; CA; USA
4. Department of Pathology, Immunology and Lab Medicine; University of Florida College of Medicine; Gainesville; FL; USA