[1] WHO Collaborating Ctr Travellers Hlth, Univ Zurich Ctr Travel Med, Epidemiol Biostat & Prevent Inst, CH-8001 Zurich, Switzerland
[2] EuroTravNet, Victoria, BC, Canada
[3] Univ Amsterdam, Acad Med Ctr, Ctr Trop Med & Travel Med, Dept Infect Dis, NL-1105 AZ Amsterdam, Netherlands
[4] Aix Marseille Univ, Univ Hosp Inst Infect & Trop Dis, Marseille, France
[5] Univ Zurich, Univ Hosp, Dept Infect Dis, CH-8006 Zurich, Switzerland
[6] Univ Munich, Dept Infect Dis & Trop Med, Munich, Germany
[7] Hosp Ramon & Cajal, Dept Infect Dis, E-28034 Madrid, Spain
[8] Oslo Univ Hosp, Dept Infect Dis, Oslo, Norway
[9] Univ Med Ctr Hamburg Eppendorf, Dept Trop Med & Infect Dis, Bernhard Nocht Clin, Hamburg, Germany
[10] InterHlth Worldwide & Natl Travel Hlth Network &, London, England
[11] Univ Brescia, Univ Div Infect & Trop Dis, Brescia, Italy
[12] Brescia Spedali Civili Gen Hosp, Brescia, Italy
[13] Addenbrookes Hosp, Dept Infect Dis, Cambridge, England
[14] Univ Hosp Geneva, Div Trop & Humanitarian Med, Geneva, Switzerland
[15] Univ Hosp Ctr, Dept Internal Med & Trop Dis, Bordeaux, France
[16] Harbour Hosp, Inst Trop Dis, Rotterdam, Netherlands
[17] Charite, Inst Trop Med & Int Hlth, D-13353 Berlin, Germany
[18] Hop La Pitie Salpetriere, Dept Infect & Trop Dis, Serv Malad Infect & Trop, Paris, France
[19] Univ Liverpool, Liverpool Sch Trop Med, Liverpool L3 5QA, Merseyside, England
[20] Natl Inst Hlth Res Unit Emerging & Zoonot Infect, Liverpool, Merseyside, England
[21] NHS Natl Serv Scotland, Hlth Protect Scotland, Med & Int Hlth Team, Glasgow, Lanark, Scotland
[22] Karolinska Univ Hosp, Dept Infect Dis, Stockholm, Sweden