People who visited a Dunkin' Donuts in Cape May County last week are being told to seek a vaccination after an employee was diagnosed with hepatitis A.

The worker at the location on the 900 block of West Avenue in Ocean City was “potentially infectious” between Jan. 27 and Jan. 31, the city said in a news release on Wednesday.

Though the risk of being infected is considered low, customers who had something to eat or drink from the Dunkin' Donuts that week should see a doctor or visit a health clinic to receive a “post-exposure prophylaxis” as soon as possible but no later than Feb. 14, according to health officials. Those who have already been vaccinated against hepatitis A do not need to receive treatment.

Since 2006, medical experts have recommended children be vaccinated against hepatitis A.

Store employees received the vaccine and have been cleared to return to work. The eatery was also sanitized and has re-opened, officials said.

Hepatitis A is a contagious liver disease that can range in severity from a mild illness lasting a few weeks to a severe illness lasting several months. It generally spreads when a person ingests fecal matter, even in microscopic amounts, from contact with objects, food, or drinks contaminated by the stool of an infected person.

Symptoms, which usually appear 2 to 4 weeks after exposure, can include but are not limited to:

fever

fatigue

loss of appetite

nausea

vomiting

abdominal discomfort

dark urine

clay-colored bowel movement

joint pain

jaundice (yellowing of the skin)

In September, parents of Nottingham High School students in Mercer County were warned that their children might have been exposed to hepatitis A after two students came down with it.

More information about hepatitis A may be found here.

Jeff Goldman may be reached at jeff_goldman@njadvancemedia.com. Follow him on Twitter @JeffSGoldman. Find NJ.com on Facebook.

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