1. Department of Clinical and Experimental Medicine, Section of Microbiology, University of Bologna, Bologna,1
2. Scientific Affairs, Abbott Diagnostici, Rome,2
3. Department of Microbiology, Hospital San Gerardo dei Tintori, Monza,3
4. Central Laboratory, Hospital of Livorno, Livorno,4 and
5. Central Laboratory, Hospital of Grosseto, Grosseto,5Italy;
6. Department of Clinical Microbiology, Karolinska Hospital, Stockholm, Sweden6;
7. Department of Virology, K. U. L. University Leuven, Leuven, Belgium7; and
8. Department of Congenital Infectious Disease Diagnostics, Abbott Laboratories, Abbott Park, Illinois8