1. Department of Chemistry and Biomedical Sciences, University of Kalmar, S-391 82 Kalmar, Sweden
2. Nya Apodemus, Grevgatan 38, S-114 53 Stockholm, Sweden
3. University of Texas Medical Branch, Department of Pathology, Centre for Tropical Diseases, Galveston, USA
4. Picornaviral Research Unit, Discipline of Immunology and Microbiology, Faculty of Medical Sciences, The University of Newcastle, David Maddison Clinical Sciences Building, Royal Newcastle Hospital, Newcastle, 2300 New South Wales, Australia