Exterior view of the OHSU Hospital building at Oregon Health & Science University (OHSU) on Marquam Hill in Portland, Oregon, at dusk as light transitions across the campus. (OHSU/Christine Torres Hicks)

Jeffrey Tyner, Ph.D., and Melissa Stewart, Ph.D., led a team at OHSU that discovered a new drug combination that may help people with acute myeloid leukemia. (OHSU/Christine Torres Hicks)

Jeffrey Tyner, Ph.D., and Melissa Stewart, Ph.D., led a team at OHSU that discovered a new drug combination that may help people with acute myeloid leukemia. (OHSU/Christine Torres Hicks)

Jeffrey Tyner, Ph.D., y Melissa Stewart, Ph.D., dirigieron un equipo en OHSU que descubrió una nueva combinación de fármacos que podría ayudar a las personas con leucemia mieloide aguda. (OHSU/Christine Torres Hicks)

Jeffrey Tyner, Ph.D., y Melissa Stewart, Ph.D., dirigieron un equipo en OHSU que descubrió una nueva combinación de fármacos que podría ayudar a las personas con leucemia mieloide aguda. (OHSU/Christine Torres Hicks)

From the tiniest patients to the biggest breakthroughs, 2025 photos at OHSU capture more than moments: They tell stories of courage, discovery and heart. (OHSU/Christine Torres Hicks)

Isabella Rauch, Ph.D., is the senior author on a new study published in Nature that reveals how a dangerous strain of E. coli blocks the body’s immune defenses to spread infection. (OHSU/Christine Torres Hicks)