DOVER, Del. (Feb.20, 2026) – The Delaware Division of Public Health (DPH) is reporting a measles exposure at the Nemours Children’s Hospital emergency department in Wilmington on February 18, 2026. Contact tracing is ongoing. DPH will notify persons who were identified as exposed, to confirm whether or not they have been vaccinated against measles before, provide educational resources, and to recommend quarantine and exclusion orders when necessary. DPH encourages people who were exposed to check their vaccination status and watch for symptoms for 21 days until March 11, 2026. Pregnant people — regardless of vaccination status — who may have been exposed during this time period should go to an emergency room for assessment and treatment.
