Seattle was one of the first US cities to have a COVID-19 outbreak, with a cluster of nursing home-related deaths. However, many people who tested positive for the novel coronavirus never became ill, and in some the clinical illness was indistinguishable from influenza. John Lynch, MD, MPH, an infectious disease physician and medical director for infection prevention and control at the Harborview Medical Center, summarizes his hospital's experience managing the patients and outbreak.