Argus is an event-based, multilingual surveillance system, which captures and analyzes information from publicly available Internet media. Argus produces reports that summarize and contextualize I&W of emerging threats and makes these reports available to the system's users (1) . The significance of the EHEC outbreak analyzed here lies primarily in the fact that it raised epidemiological questions and public health infrastructure concerns that have yet to be resolved, and required the development of new resources for detecting and responding to newly emerging epidemics (2) .