[1] Lausanne Univ Hosp, Infect Dis Serv, Lausanne, Switzerland
[2] Univ Lausanne, Lausanne, Switzerland
[3] Univ Hosp Geneva, Pediat Infect Dis Unit, Geneva, Switzerland
[4] Fac Med, Geneva, Switzerland
[5] Lausanne Univ Hosp, Transplantat Ctr, Lausanne, Switzerland
[6] Univ Hosp Zurich, Div Infect Dis, Zurich, Switzerland
[7] Univ Hosp Zurich, Hosp Epidemiol, Zurich, Switzerland
[8] Univ Hosp Basel, Infect Dis, Basel, Switzerland
[9] Univ Hosp Basel, Hosp Epidemiol, Basel, Switzerland
[10] Clin Luganese Moncucco, Clin Internal Med & Infect Dis, Lugano, Switzerland
[11] Univ Hosp Geneva, Transplant Infect Dis Unit, Geneva, Switzerland
[12] Univ Basel, Dept Biomed, Transplantat & Clin Virol, Basel, Switzerland
[13] Univ Hosp Zurich, Puimonol, Zurich, Switzerland
[14] Univ Hosp Zurich, Nephrol Clin, Zurich, Switzerland
[15] Univ Hosp Geneva, Serv Transplantat, Geneva, Switzerland
[16] Dept Transplantat Immunol & Nephrol, Basel, Switzerland