Two Vineyard farms have been included in a sweeping recall by the U.S. Department of Agriculture for meat processed at the Adams Farm slaughterhouse in eastern Massachusetts.

Announced by the USDA this week due to possible contamination from the bacteria E coli, the recall covers beef, veal and bison processed at the Athol slaughterhouse during specific time periods from mid to late summer.

Eric Glasgow, owner of the Grey Barn farm and Dairy in Chilmark, confirmed Saturday morning that veal from his farm was included in the recall. No illnesses have been reported on the Island or tracked to any meat consumed from Vineyard farms, many of whom have their meat processed at the Adams facility.

But Mr. Glasgow said all the veal has been pulled from freezer shelves at Grey Barn, and he said any customers who bought veal from the farm are welcome return it for a refund or exchange.

“None of the illnesses that prompted this came from product that was sold by us,” he said. “We are caught up in the broader web of being safe; it’s up to people to decide what they think is safe.”

Beef prodcuts from Morning Glory Farm in Edgartown have also been included in the expanded precautionary recall, chief executive officer Simon Athearn said Tuesday. He said the farm found out their products were included in the recall on Friday morning, and all beef processed at Adams Farm during that time period have been quarantined and will be returned and destroyed.

Morning Glory has posted notices about the recall and will buy back any meat included in the recall, he said. The farm has some beef on hand that was processed during other times and is not included in the recall.

Mr. Athearn said the farm will lose about 1,500 pounds of finished, cut meat from animals that were bottle raised. “It's expensive, but it's a food safety issue,” he said.

According to the USDA, there were seven reported cases of illness tracked to meat processed by the slaughterhouse. Mr. Glasgow said the USDA as a precautionary measure has recalled all the products that were processed on the same day as the products that caused illness. E. coli is potentially deadly, and even in mild forms can cause dehydration and severe intestinal illness.

A complete list of farms and retail outlets affected by the recall appears in the notice. The USDA recommends returning or discarding any meat that may be included in the recall; the agency also advises that thoroughly cooking meat effectively kills bacteria.

Mr. Glasgow said most Island farms use the Adams Slaughterhouse because it is one of only a handful of such facilities available for farms in eastern Massachusetts.

“My greatest concern is that nobody be sick,” he said, “but my second greatest concern is there are not a lot of slaughterhouse options in eastern Massachusetts; if this were to lead to the slaughterhouse going out of business, it would be a big problem.”

Mr. Athearn shared that concern. “It's disappointing, but I feel bad for Adams Farm, because they are an important part of our farm infrastructure,” he said. “I hope that they stay in business.”