1) MIDAS Objectives: The MIDAS Research Groups develop epidemiological models that represent host-pathogen relationships, disease epidemiology and forecasting systems, and pandemic response strategies. They also focus on informationdriven research rather than hypothesis-driven investigations. The MIDAS model developers use real or simulated data available through the MIDAS Web site. As a collaborative network of scientists, the MIDAS investigates using computational and mathematical models that will prepare the nation to respond to outbreaks of infectious diseases by providing policymakers and public health officials with reliable and timely information that can be used to prepare for infectious disease outbreaks.