An employee at the Cheesecake Factory on Milwaukee Avenue in Boise Idaho may have exposed some diners at the restaurant to Hepatitis A between December 13, 2011 and January 22, 2012 according to the Central District Health Department.

The employee who was confirmed to have Hepatitis A wasn’t involved in food preparation, and the risk to the public is “extremely low” — but there was some possibility of exposure to diners, the health department said. The employee is said to have used good hand hygiene.

Hepatitis A is a liver disease caused by the Hepatitis A virus. Eating or drinking food items that have been contaminated with Hepatitis A from someone who has not properly washed their hands after using the bathroom usually spreads it, but it is also spread easily when a person doesn’t wash his or her hands after changing a baby’s diaper.

Symptoms of Hepatitis A include: fever, loss of appetite, abdominal discomfort, jaundice, tiredness, nausea and dark urine. Symptoms vary from mild to severe, lasting anywhere from a couple weeks to several months.