1. Cincinnati Children's Hospital Medical Center; Cincinnati Ohio
2. KEMRI/Wellcome Trust Research Programme; Kilifi Kenya
3. Imperial College; London UK
4. Mbale Regional Hospital Clinical Research Unit; Mbale Uganda
5. University of Toronto; Toronto Canada
6. Hospital Pediátrico David Bernardino; Luanda Angola
7. Centre Hospitalier Monkole; Kinshasa DRC
8. Cohen Children's Medical Center; New Hyde Park New York