1. Epidemic Intelligence Service; Centers for Disease Control and Prevention; Atlanta GA USA
2. Influenza Division; National Center for Immunization and Respiratory Diseases; Centers for Disease Control and Prevention; Atlanta GA USA
3. Communicable Disease Control Department; Ministry of Health; Phnom Penh Cambodia
4. Influenza Program; United States Centers for Disease Control and Prevention; Phnom Penh Cambodia
5. Emerging Disease Surveillance and Response; World Health Organization; Phnom Penh Cambodia
6. Emerging Disease Surveillance and Response; World Health Organization Regional Office for the Western Pacific; Manila Philippines