AKRON, Ohio — Health officials said Saturday that dozens of Ohio residents were being monitored after possibly being exposed to a nurse from Dallas who visited here just days before she was found to have Ebola, but that no cases of the deadly virus have yet been identified in the state.

The nurse, Amber Joy Vinson, who is now being treated at hospital in Atlanta, was on the team that cared for Thomas Eric Duncan, the Liberian man who died on Oct. 8 in Dallas from Ebola. Ms. Vinson had already flown to Ohio when Nina Pham, another nurse who treated Mr. Duncan, tested positive for Ebola.

Ohio politicians and health workers said they were on top of the issue, and life for most here has gone on with little interruption. But quarantines, a few school closures and images of Ms. Vinson’s relatives’ home shrouded in yellow police tape have not gone unnoticed.