Cumberland County health officials administered an estimated 2,700 doses of hepatitis A immunizations as of Thursday to people who may have been exposed at the Olive Garden.

The Health Department reported administering 570 shots through 3 p.m. Thursday in addition to an estimated 2,100 on Tuesday and Wednesday.

Starting today, only those who dined or worked at the restaurant on July 29 and 31, and Aug. 1, 2 and 8, are eligible for free shots at the Health Department’s Ramsey Street office. Officials say an employee who worked at the restaurant on those dates later tested positive for the illness.

The vaccine is effective only within 14 days of infection. Those who dined or worked at the Olive Garden prior to July 29 should watch for signs of the illness and contact a doctor if they get sick.