Alan Hauser is a Professor in the Departments of Microbiology-Immunology and Medicine (Division of Infectious Diseases) at Northwestern University. He also serves as Associate Chair for the Department of Microbiology-Immunology and as Director of Research for the Infectious Diseases Fellowship Program. Dr. Hauser’s group is focused on understanding the pathogenesis and epidemiology of multidrug-resistant gram-negative bacteria such as Pseudomonas aeruginosa, Acinetobacter baumannii, and Klebsiella pneumonia. They have been instrumental in characterizing the role of the P. aeruginosa type III secretion system in infections and in understanding the molecular mechanisms by which the effector proteins of this system enhance disease severity. Another area of interest has been the application of whole-genome sequencing to identify novel virulence factors and to characterize the epidemiology and spread of multidrug-resistant pathogens.