[1] Vanderbilt Univ, Med Ctr, Vanderbilt Inst Global Hlth, Suite 750,2525 West End Ave, Nashville, TN 37203 USA
[2] Vanderbilt Univ, Med Ctr, Dept Med, Div Epidemiol, Nashville, TN USA
[3] Univ Michigan, Dept Hlth Behav & Hlth Educ, Ann Arbor, MI 48109 USA
[4] Univ Maryland, Sch Publ Hlth, Dept Epidemiol & Biostat, College Pk, MD 20742 USA
[5] Chinese Ctr Dis Control & Prevent, State Key Lab Infect Dis Prevent & Control SKLID, Collaborat Innovat Ctr Diag & Treatment Infect Di, Beijing, Peoples R China
[6] Vanderbilt Univ, Med Ctr, Dept Pediat, Nashville, TN 37232 USA