Avian Influenza: Basic Science, Potential for Mutation, Transmission, Illness Symptomatology and Vaccines (L Y-A Chai); The First Few Cases of H5N1 Infection in the World (R Y-T Sung); Singapore's Efforts and Experiences in Influenza Control (P A Tambyah); Bird Flu in Indonesia (N Abikusno); The Second Phase After H5N1 Avian Influenza Virus Infection: The Three-Wave Spread in Thailand (S Chutinimitkul et al.); Hong Kong's Public Health Preparedness for Avian Influenza Pandemic Under a Three-Tier Response System (R M-K Lam & P-Y Leung); The Consequences and Management of an Established Pandemic of Influenza (D A Fisher); Cultural, Social and Economic Influences of the Flu (V J Lee & K-H Phua); Epidemiology and Risk Factors for Avian Influenza (T Khawcharoenporn et al.); The Socioeconomic Effects of an Avian Influenza Pandemic (G C-H Koh & D S-Q Koh); The Efficacy of Chinese Medicine for SARS: Review of Important Publications from China (P-C Leung).