So I'm wondering if it's been circulating since June.

>COLUMBUS -- Ohio Department of Health (ODH) Director Bruce Vanderhoff, MD, MBA, has confirmed the state’s first measles case of 2022. The infected child is from Franklin County and recently traveled to a country with confirmed measles cases. ODH is currently not disclosing additional information about the infected individual.

>Ohio occasionally sees measles cases as the result of importations from other countries where measles remains endemic. This is the first confirmed measles case in Ohio since 2019. The Centers for Disease Control and Prevention (CDC) notes that as of June 3, 2022, a total of 3 measles cases were reported by 2 jurisdictions (jurisdictions refer to any of the 50 states, New York City, and the District of Columbia).

Health director reports first measles case in Ohio-June 16, 2022

I wonder how thorough and extensive the contact tracing was.