1. Division of Human Biology, Fred Hutchinson Cancer Center Seattle Washington USA
2. Department of Paediatrics and Child Health University of Nairobi Nairobi Kenya
3. Department of Global Health, Hans Rosling Center University of Washington Seattle Washington USA
4. Molecular and Cellular Biology Graduate Program University of Washington and Fred Hutchinson Cancer Center Seattle Washington USA
5. Center for Fundamental and Applied Microbiomics, Biodesign Institute Arizona State University Tempe Arizona USA
6. Department of Biostatistics University of Washington Seattle Washington USA
7. School of Life Sciences Arizona State University Tempe Arizona USA
8. Département de Microbiologie, Infectiologie et Immunologie, Centre de Recherche du CHU St‐Justine Université de Montréal Montréal Québec Canada
9. Department of Epidemiology University of Washington Seattle Washington USA
10. Department of Research and Programs, Kenyatta National Hospital Nairobi Kenya
11. Division of Public Health Sciences Fred Hutchinson Cancer Center Seattle Washington USA
12. Kenya Medical Research Institute Nairobi Kenya