1. Division of Infectious Diseases, Children's Hospital of Philadelphia , Philadelphia, Pennsylvania , USA
2. Department of Pediatrics, University of Pennsylvania Perelman School of Medicine , Philadelphia, Pennsylvania , USA
3. Department of Pediatrics, NewYork University Grossman School of Medicine , New York, New York, USA
4. Renaissance School of Medicine, Stony Brook University , Stony Brook, NewYork, USA
5. Department of Pediatrics & Adolescent Health, Faculty of Medicine, University of Botswana , Gaborone , Botswana
6. School of Allied Health Professionals, Faculty of Health Sciences, University of Botswana , Gaborone , Botswana
7. Botswana-UPenn Partnership , Faculty of Health Sciences, University of Botswana, Gaborone , Botswana
8. Global Health Center, Children's Hospital of Philadelphia , Philadelphia, Pennsylvania , USA
9. Department of Pediatrics, Princess Marina Hospital , Gaborone , Botswana
10. Department of Pediatrics, Stead Family Children's Hospital, University of Iowa , Iowa City, Iowa , USA
11. Department of Microbiology, NewYork University Grossman School of Medicine , New York, New York, USA