Overview
- The health department, which announced the update Wednesday, confirmed a seventh case in an unvaccinated child who was a close contact of the March 11 index patient.
- Investigators say the latest case may have exposed people inside Trinity Health Ann Arbor’s emergency treatment areas on March 21 from 1:45 to 7:28 p.m., excluding the waiting room.
- A suspected case disclosed March 21 is now confirmed, which makes Washtenaw Community College classrooms and the Kroger on Whittaker Road on March 17 official exposure sites.
- Health leaders urge anyone unvaccinated or not immune to avoid others for 21 days after exposure and to call a clinic or ER before seeking care so staff can prevent further spread.
- High‑risk contacts can receive immune globulin up to six days after exposure, which means those exposed on March 21 have access through Friday, March 27, and officials are working with Trinity Health to notify people who are not immune.