SPRINGFIELD, Mo. (AP) — Health in Missouri officials are offering immunizations for up to 5,000 people who might have been exposed to the hepatitis A virus at a Springfield restaurant.

The Springfield-Greene County Health Department announced Wednesday that a Red Robin restaurant reported that a worker had the liver disease. People who visited the restaurant between May 8 and May 16 can receive the immunizations.

Officials told The Springfield News-Leader (http://sgfnow.co/1oT4Woh) that customers must be vaccinated within 14 days of their possible exposure for the vaccination to work.

Health department spokeswoman Kathryn Wall says the sick worker was a server, and that the Health Department hasn't confirmed any new hepatitis A cases. Health officials say the Red Robin is now safe to visit.