[1] Royal Hampshire Cty Hosp, Dept Microbiol & Communicable Dis, Romsey Rd, Winchester SO22 5DG, Hants, England
[2] Univ Hosp Infect Dis, Dept Clin Microbiol, Zagreb, Croatia
[3] Univ Genoa, Sch Med, San Martino Teaching Hosp, Div Infect Dis, Genoa, Italy
[4] Univ Madrid, Hosp Gen Univ Gregorio Maranon, Div Clin Microbiol & Infect Dis, Madrid 3, Spain
[5] Grp Hosp Pitie Salpetriere, Inst Cardiol, Serv Reanimat Med, F-75634 Paris, France
[6] Univ Verona, Dept Pathol, I-37100 Verona, Italy
[7] Univ Naples 2, Dept Infect Dis, Naples, Italy
[8] Kings Coll London, St Thomas Hosp, Dept Infect, London WC2R 2LS, England
[9] Univ Gen Hosp Attikon, Dept Internal Med 4, Athens, Greece
[10] Radboud Univ Nijmegen, Med Ctr, N4i, Dept Med, NL-6525 ED Nijmegen, Netherlands
[11] Canisius Wilhelmina Hosp, Nijmegen, Netherlands
[12] Univ Dundee, Ninewells Hosp & Med Sch, Infect Unit, Dundee DD1 9SY, Scotland
[13] Hacettepe Univ, Fac Med, Dept Med, Infect Dis Sect, TR-06100 Ankara, Turkey
[14] Radboud Univ Nijmegen, Med Ctr, Dept Med Microbiol, NL-6525 ED Nijmegen, Netherlands