1. Medical Research Council/Diarrhoeal Pathogens Research Unit; Department of Virology; University of Limpopo; Medunsa Campus/National Health Laboratory Service; Pretoria South Africa
2. Gastroenteritis and Respiratory Viruses Laboratory Branch; Division of Viral Diseases, NCIRD, CDC; Atlanta Georgia
3. The J. Craig Venter Institute; Rockville Maryland
4. Enteric and Diarrhoeal Diseases Programme; Global Health Program; Bill and Melinda Gates Foundation; Seattle Washington