The Wayne County Health Department says anyone who ate at the 317 Spence Ave. restaurant on Dec. 7 needs to get a free protective shot.
The clinic began Wednesday at the Wayne County Health Department at 301 North Herman St. About a dozen people got vaccinated so far.
The owner says the sick employee never touched any food.
Health officials think as many as 50 people may have been exposed to the virus.
The hepatitis A vaccine reduces the risk of the disease when given within 14 days of exposure.
Symptoms appear 2-7 weeks after exposure and commonly include fever, a feeling of being unwell, loss of appetite, diarrhea, nausea and abdominal discomfort; urine may become darker in color and jaundice (a yellowing of the skin and whites of the eyes) may appear. Some individuals, especially children, may not develop jaundice, and may have an illness so mild that it can go unnoticed.
For general information on hepatits A, click here.