Olive Garden diners in North Carolina are flocking to get hepatitis A vaccines after a server at an Olive Garden in Fayetteville told her bosses she tested positive for the virus.

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Roughly 1,500 people who ate at the restaurant on one of the eight days in late July and early August when the server was on duty have reportedly already received a vaccine.

“The most important thing right now is to get anybody that was present in the restaurant during those dates vaccinated,” a local health official told the Fayetteville Observer. “That’s the No. 1 priority.”