 | Description: Successful containment or control of pandemic influenza will rely on early recognition of sustained human-to-human transmission which requires a system for outbreak detection, rapid data collection, analysis, assessment and timely reporting. Early detection of the start of a pandemic is crucial to rapidly implement measures to stop the pandemic at its source and to prevent millions of deaths, social disruption and economic loss. As part of national pandemic preparedness planning each country should prepare for enhanced surveillance to (i) detect the emergence of the new disease, (ii) characterize the disease (epidemiology, clinical manifestations, severity) and (iii) monitor its evolution. |