Defense Against Infectious Diseases Act of 2009

Defense Against Infectious Diseases Act of 2009 - Directs the President: (1) to convene a consortium of representatives of state, local, and tribal governments to assess the adequacy of guidance for state and local government planning in the National Strategy for Pandemic Flu and the National Strategy for Pandemic Influenza Implementation Plan; and (2) within one year after convening such consortium and every four years thereafter, to convene another consortium to review and update such Strategy and Plan.

Requires the Secretary of Health and Human Services (HHS), in coordination with the Secretary of Homeland Security (DHS), to conduct a survey to identify appropriate alternative medical care facilities capable of meeting medical surge capacity needs for the prophylaxis for, and treatment of, infectious diseases outbreaks.

Directs the Secretary of DHS to identify specific resources, including subsistence supplies and personnel, that may be required to support the implementation of strategies for social distancing and medical surge during a federally declared emergency or major disaster to prevent the introduction, transmission, and spread of communicable disease and ensure the proper delivery of crisis and medical care.

Requires the Government Accountability Office (GAO) to report to the appropriate Senate and House committees describing the roles and responsibilities, capabilities, and coordination of federal assets for medical response to infectious disease outbreaks or biological attacks.