[1] Univ Med Ctr Hamburg Eppendorf, Dept Internal Med, Hamburg, Germany
[2] Univ Med Ctr Hamburg Eppendorf, Dept Med Microbiol Virol & Hyg, Hamburg, Germany
[3] Vis 7 GMBH, Frankfurt, Germany
[4] Asklepios Clin St Georg, Inst Interdisciplinary Med, Hamburg, Germany
[5] Univ Heidelberg Hosp, Dept Infect Dis, Heidelberg, Germany