Cristina Rojas reports that a confirmed case of hepatitis A has been traced to a food worker employed at Rosa’s Restaurant and Catering in Hamilton, officials said late Monday.

Health officials warned that anyone who ate at or catered from the restaurant between Nov. 10 and Monday may be at risk for developing Hepatitis A if they have not been previously vaccinated.

Unvaccinated individuals who ate there should receive an injection of immune globulin or hepatitis A vaccine. Both can prevent an infection if given within 14 days of exposure.

Officials urged anyone who ate at the restaurant who develops symptoms to call a doctor. The symptoms include mild fever, loss of appetite, nausea, fatigue, vomiting, diarrhea, abdominal pain and dark urine and jaundice.

The disease varies in severity, with mild cases lasting two weeks or less and more severe cases lasting four to six weeks.