[1] Morehouse Sch Med, Dept Family Med, Norcross, GA USA
[2] Emory Univ, Dept Med, Georgia Emerging Infect Program, Atlanta, GA USA
[3] Childrens Healthcare Atlanta, Aflac Canc & Blood Disorders Ctr, Atlanta, GA USA
[4] Emory Univ, Childrens Healthcare Atlanta, Atlanta, GA USA
[5] Yale Univ, Dept Pediat, Dept Epidemiol Microbial Dis, Sch Med,Yale Sch Publ Hlth, New Haven, CT USA
[6] Childrens Healthcare Atlanta, Aflac Canc & Blood Disorders Serv, Atlanta, GA USA
[7] Morehouse Sch Med, Atlanta, GA USA