REDFIELD, Ark. (AP) — Health officials are again warning of a possible hepatitis A exposure after an employee at a central Arkansas diner tested positive for the disease.

Arkansas Department of Health spokeswoman Meg Mirivel said Thursday that anyone who ate at the J Mart Diner in Redfield, about 20 miles (32 kilometers) south of Little Rock, between July 17 and August 2 should seek vaccination for the virus.

The health department will have free vaccinations available Friday at the Grant and Jefferson County local health units until 6 p.m.

Northeast Arkansas has been battling an unusually severe hepatitis A outbreak with 393 cases reported in that part of the state since February 2018.

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Hepatitis A is a contagious and potentially fatal, but treatable, liver disease. Symptoms include fever, nausea, fatigue, and jaundice.