BUFFALO, N.Y. -- Casa di Pizza patrons who were potentially exposed to Hepatitis A lined up Monday at the Buffalo Niagara Convention Center to take part in the first of two clinics to protect against the virus.

"My daughter dined there around March 9 and brought home leftover pizza, which I ate one slice of,” said Katz.

"Me and my wife was invited to dinner at Casa Di Pizza on March 15," said McAdory.

Katz, McAdory, and dozens of others were potentially exposed to Hepatitis A by a server at the restaurant.

"I think that if I didn't come I probably would have been just as well off as if I came, but why take chances?" asked Katz.

McAdory said he was initially jarred by the news.

"Last night, I didn't know enough about Hepatitis A so it scared me that I may have exposed my children."

"The risk is very low, but just because the risk is very low doesn't mean we should ignore it,” said County Executive Mark Poloncarz, D-Erie County.

County officials estimate roughly 1,300 people who ate in the dining room or banquet hall between March 9 and 19 were put at risk and are eligible for immunization. Another 700 who dined at the restaurant between March 1 and March 8 are ineligible for a vaccination, but are asked to attend one of two clinics being offered by the Erie County Health Department at the convention center.

"We're hoping that this will help minimize the risk of Hepatitis A infection among people who dined in the restaurant," said Dr. Gale Burstein, Erie County Health Commissioner.

But would these patrons return to Casa di Pizza?

"I think anybody's business could have been in this position and there's probably all kinds of things that happen everywhere that people don't know about," said Katz.

McAdory wasn’t as forgiving.

"I believe that they have a responsibility to the public to make sure that we're eating in a safe and clean environment,” he said. “I'm not going to go back to Casa di Pizza, no I'm not."

For their part, county officials say Casa di Pizza has been helpful, working alongside them to correct any health violations. Burstein said the restaurant passed previous health inspections.

Another clinic will take place Tuesday at the Buffalo Niagara Convention Center from 8 a.m. until 6 p.m.