Pandemic influenza is a re-emerging pathogen with serious public health consequences. The A(H1N1) pandemic in 2009/10 and the continuing threat to humans from avian influenza A(H5N1) and other novel influenza viruses have both underlined the importance of preparedness at local, national and international levels. With a strong emphasis on practicality, this book offers comprehensive coverage of the science and operational application of influenza epidemiology, virology and immunology, vaccinology, pharmaceutical and public health measures, biomathematical modelling, policy issues and ethics involved in preparing for and responding to pandemic influenza. Each chapter raises key questions and answers them in clear and concise sections, detailing relevant modelling studies and further reading. Comprehensively updated to incorporate major lessons from the 2009/10 pandemic, this second edition includes new contributions on surveillance, International Health Regulations, clinical management and local health service responses, illustrated with vibrant international case studies. Written in an easily accessible style by global experts, this is an essential text for students of public health and those involved in local, national and international pandemic preparedness and response.