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.

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.”