[1] Johns Hopkins Aramco Healthcare, Infect Dis Unit, Specialty Internal Med, Dhahran, Saudi Arabia
[2] Indiana Univ Sch Med, Div Infect Dis, Indianapolis, IN USA
[3] Johns Hopkins Univ, Div Infect Dis, Baltimore, MD USA
[4] Univ Zurich, Inst Epidemiol Biostat & Prevent, Dept Publ & Global Hlth, Zurich, Switzerland
[5] Aix Marseille Univ, AP HM, SSA, VITROME,IRD, Marseille, France
[6] IHU Mediterranee Infect, Marseille, France
[7] Univ Zurich, Inst Epidemiol Biostat & Prevent, WHO Collaborating Ctr Travellers Hlth, MilMedBiol Competence Ctr,Dept Publ & Global Hlth, Zurich, Switzerland