This booklet describes the outbreak of human cases of avian influenza in Turkey and the national and international response. Drawing on interviews with some of the key health workers and major agencies involved - the European Centre for Disease Prevention and Control (ECDC), the United Nations Children's Fund (UNICEF), the Food and Agriculture Organization of the United Nations (FAO) and the World Organisation for Animal Health (OIE), as well as WHO - it points out practical lessons that national and international public health agencies and policy-makers can use to respond effectively to future outbreaks and a possible avian influenza pandemic.