[1] Linkoping Univ, Fac Med, Div Mol Virol, S-58185 Linkoping, Sweden
[2] Natl Board Forens Med, Dept Forens Genet, Linkoping, Sweden
[3] Linkoping Univ Hosp, Div Clin Microbiol, S-58185 Linkoping, Sweden
[4] Statens Serum Inst, Dept Virol, DK-2300 Copenhagen, Denmark
[5] Hvidovre Univ Hosp, Dept Microbiol, Hvidovre, Denmark
[6] Naestved Hosp, Dept Microbiol, Naestved, Denmark
[7] Sahlgrens Univ Hosp, Dept Clin Chem & Transfusion Med, S-41345 Gothenburg, Sweden