Barbara I. Kazmierczak, MD, PhD

Barbara Kazmierczak, MD, PhD, received her PhD from Rockefeller University (1993) and her MD from Cornell University Medical College (1994), both in New York City. She completed an Internal Medicine residency and Infectious Diseases fellowship training at the University of California, San Francisco, and joined the Yale faculty in 2001. She is currently a Professor of Medicine and Microbial Pathogenesis, and Director of the MD-PhD program at Yale.

Dr. Kazmierczak's research program is broadly focused on bacterial and host factors that allow opportunistic infections to occur. Using Pseudomonas aeruginosa as a clinically relevant model, her lab addresses fundamental questions of how cell-envelope spanning bacterial machines - the Type 3 secretion system, Type 4 pili and polar flagellum - are assembled, regulated, and used during infection. She has also identified host responses directed at components of these virulence associated structures, in particular those mediated by the NLRC4 inflammasome. Inflammatory responses to bacteria are also a focus of her work on microbiome-host interactions in infants with Cystic Fibrosis, where her lab has used longitudinal data acquired over five years from cohorts of patients and controls to understand gut microbiome composition and the inflammatory and metabolic responses at this site.

Dr. Kazmierczak has been recognized as a Burroughs-Wellcome Fund Investigator in the Pathogenesis of Infectious Diseases (2007), a Donaghue Investigator (2002), and a Hellman Family Fellow (2002). She is a Fellow of the Infectious Diseases Society of America and an elected member of the American Society for Clinical Investigation and the American Academy for Microbiology.