1. Department of Medicine, University of Virginia, Charlottesville
2. Wellcome Trust Sanger Institute, Hinxton, Cambridge, United Kingdom
3. International Centre for Diarrhoeal Disease Research, Bangladesh
4. Department of Statistics, University of Virginia, Charlottesville
5. Cryptosporidium Reference Unit, Public Health Wales Microbiology, Singleton Hospital
6. Swansea University Medical School, Singleton Park, Swansea, United Kingdom
7. Department of Public Health Sciences, University of Virginia, Charlottesville