A cafeteria employee at UK’s Albert B. Chandler Hospital has been diagnosed with hepatitis A.

The university released the information on Thursday and is urging anyone who ate at the cafeteria from Oct. 11-30 to get a hepatitis A vaccine because they may have been exposed. 

The infected employee prepared food at the cafeteria but did not help prepare food for patients at the hospital, according to UK. The employee is not currently working at the hospital and will remain off work until cleared to return.

Hepatitis A is a contagious liver disease. Symptoms include fatigue, decreased appetite, stomach pain, nausea and jaundice. Officials say people can become ill 15 to 50 days after being exposed to the virus.