1. Ministry of Health; Singapore Singapore
2. Saw Swee Hock School of Public Health; National University of Singapore; Singapore Singapore
3. Centre for Global Health Research; Usher Institute of Population Health Sciences; University of Edinburgh; Edinburgh UK
4. Division of the National Laboratory Service; Centre for Respiratory Diseases and Meningitis; National Institute for Communicable Diseases; Johannesburg South Africa
5. Wits School of Public Health; University of the Witwatersrand; Johannesburg South Africa
6. Global Influenza Programme; World Health Organization; Geneva Switzerland
7. Center for Health Studies, Research Institute; Universidad del Valle de Guatemala; Guatemala City Guatemala
8. Centre for Community Medicine; All India Institute of Medical Sciences; New Delhi India
9. Influenza Division; Centers for Disease Control and Prevention; Atlanta GA USA