Interscience Conference on Antimicrobial Agents and Chemotherapy (ICAAC), a meeting of the American Society for Microbiology (ASM), is September 10 -13, 2013, in Denver, CO. ICCAC is the worlds premier meeting on infectious diseases and antimicrobial agents. Each fall more than 10,000 international scientists come together to exchange information and foster global solutions to scientific challenges such as HIV/AIDS, anthrax, smallpox, SARS, bioterrorism preparedness, recognition, detections, and medical treatments. Through a variety of educational formats, ICAAC provides timely information to improve healthcare and the management of infectious diseases.