[1] Statens Serum Inst, DK-2300 Copenhagen, Denmark
[2] Herlev Hosp, Dept Clin Microbiol, DK-2730 Herlev, Denmark
[3] Aarhus Univ Hosp, Dept Clin Microbiol, Skejby, Denmark
[4] Hillerod Hosp, Dept Clin Microbiol, Hillerod, Denmark
[5] Naestved Hosp, Dept Clin Microbiol, Naestved, Denmark
[6] Odense Univ Hosp, Dept Clin Microbiol, DK-5000 Odense, Denmark
[7] Aarhus Univ Hosp, Aalborg Hosp, Dept Clin Microbiol, Aalborg, Denmark
[8] Esbjerg Cent Hosp, Dept Clin Microbiol, Esbjerg, Denmark
[9] Rigshosp, Dept Clin Microbiol, Univ Hosp, DK-2100 Copenhagen, Denmark
[10] Vejle Hosp, Dept Clin Microbiol, Vejle, Denmark
[11] Univ Copenhagen, Hvidovre Hosp, Copenhagen Univ Hosp, Dept Clin Microbiol, DK-2650 Hvidovre, Denmark
[12] Slagelse Hosp, Dept Clin Microbiol, Slagelse, Denmark