1. Department of Functional Organization of Biomembranes, Institute of Experimental Medicine, Academy of Sciences of the Czech Republic, Prague, Czech Republic
2. Department of Microbiology and Immunology, School of Medicine, Stony Brook University, Stony Brook, New York, USA
3. Division of Infectious Diseases, School of Medicine, Stony Brook University, Stony Brook, New York, USA
4. Veterans Administration Medical Center, Northport, New York, USA