“The Infectious Diseases Society of America (IDSA) represents physicians, scientists and other health care professionals who specialize in infectious diseases. IDSA’s purpose is to improve the health of individuals, communities, and society by promoting excellence in patient care, education, research, public health, and prevention relating to infectious diseases.” The society “is well situated to communicate between its members, the international experts on infectious diseases and bioterrorism, and U.S. policymakers. The Society also is able to immediately alert its 7,500 members to urgent government alerts and actions.”