The document summarizes the role of the European Centre for Disease Prevention and Control (ECDC) in early detection of public health threats in the European Union. The ECDC uses an epidemic intelligence system to collect and analyze information from various sources, including media reports, to rapidly detect potential health threats. In 2009, 39% of threats followed by ECDC were first identified through unofficial web-based information like early warning systems and media reports. The document questions what the public health impact is of early detection through media and informal channels.