[1] CNRS, URMITE,Dept Infect Dis & Trop Med, IRD, Fac Med,UMR 6236, F-13385 Marseille 5, France
[2] Natl Inst Infect Dis LSpallanzani, Rome, Italy
[3] Royal Free Hosp, Dept Infect Dis, Infect Dis Serv, London NW3 2QG, England
[4] Goethe Univ Frankfurt, Dept Infect Dis, Frankfurt, Germany
[5] Univ Hosp, Fac Hlth Sci, Linkoping, Sweden
[6] Off Publ Hlth, Dept Infect Control, Frankfurt, Germany
[7] Luxembourg Cent Hosp, Natl Serv Infect Dis, Luxembourg, Luxembourg
[8] Hellen Ctr Dis Control & Prevent, Athens, Greece
[9] Tallinn Cent Hosp, Dept Infect Dis, Tallinn, Estonia
[10] Ghent Univ Hosp, Div Infect Dis, B-9000 Ghent, Belgium
[11] Raymond Poincare Univ Hosp, Infect Dis Unit, Paris, France
[12] Univ Coll Dublin, Mater Misericordiae Hosp, Dept Med Therapeut & Infect Dis, Dublin 2, Ireland
[13] Univ Helsinki, Cent Hosp, Dept Med, Div Infect Dis, Helsinki, Finland
[14] Rigshosp, Dept Infect Dis, DK-2100 Copenhagen, Denmark
[15] CHU Nord, Dept Infect Dis & Trop Med, Marseille, France