[1] Univ Washington, Dept Pathol, Seattle, WA 98109 USA
[2] Univ Washington, Dept Med, Seattle, WA 98109 USA
[3] Univ Washington, Dept Epidemiol, Sch Publ Hlth, Seattle, WA 98109 USA
[4] Univ Washington, Dept Microbiol, Seattle, WA 98109 USA
[5] Univ Cheikh Anta Diop Dakar, Ctr Hosp Univ Fann, Clin Malad Infect Ibrahima DIOP Mar, Dakar, Senegal