Yale School of Medicine
Jonathan (Jon) Koff, MD is Associate Professor of Medicine at Yale University where he directs the Adult Cystic Fibrosis Program and is Medical Director of the Center for Phage Biology & Therapy. Dr. Koff completed residency training in Internal Medicine at Brown University and then completed fellowship training in Pulmonary & Critical Care Medicine at the University of California, San Francisco (UCSF). This included research in the Cardiovascular Research Institute in the laboratory of Jay A. Nadel, M.D., and dedicated fellowship training in adult cystic fibrosis and lung transplantation. In 2011, Dr. Koff joined the faculty at Yale University to Direct the Adult Cystic Fibrosis Program and to continue his research that focuses on pulmonary innate immunity. In 2018 Dr. Koff began a collaboration with Drs. Paul Turner and Ben Chan to develop bacteriophage (phage) therapy at Yale. This led to the development of Yale's Center for Phage Biology & Therapy. In his role as Medical Director, Dr. Koff focuses on phage therapy for CF and other lung infections to treat multi-drug resistant infections, investigator-initiated clinical trials, and translational research to use phage therapy to decrease CF lung inflammation.
Junior Investigators: Top 10 Poster Judging
Thursday, October 8, 2026
12:30 PM - 2:00 PM EDT
S07-- Immune Responses During Phage Therapy: The Good, the Bad, & the Memory
Thursday, October 8, 2026
4:30 PM - 6:30 PM EDT
Basic Science Junior Investigator Competition
Friday, October 9, 2026
12:30 PM - 1:30 PM EDT