The state health department says cases in Massachusetts and other states were caused by ground beef from Fairbank Farms. The state didn’t confirm Marshfield as a location, but a food-safety attorney says a Marshfield grandmother and her grandchildren were sickened – and they’re going to sue Fairbank Farms.

Newly-reported cases of E. coli sickness in Marshfield have been linked to hamburger meat from a New York producer, not South Shore Meats in Brockton. While the state health department declined to confirm Marshfield as the location, a food-safety attorney says a grandmother and her twin grandchildren got sick from ground beef purchased at the Star Market off Route 139 in Marshfield center.

Attorney William Marler of Seattle said the family expects to file a lawsuit today against Fairbank Farms of Ashville, N.Y.

Marler’s comments come a day after the U.S. Department of Agriculture and federal Food and Drug Administration confirmed a new outbreak of E. coli cases in Massachusetts, Connecticut and Maine were caused by ground beef from the New York producer.

Fairbank meat has also been linked to a death in New Hampshire.

The Massachusetts health department included Shaw’s – which owns Star supermarkets – on a Fairbank recall list along with BJ’s, Trader Joe’s, Lancaster, Wild Harvest, Price Chopper, Giant and Ford Brothers stores.

Fairbank announced the recall of 173 tons of meat over the weekend.

In a prepared statement, Shaw’s says it is voluntarily recalling all fresh ground beef purchased between Sept. 16 and Sept. 29, the dates of the Fairbank recall.

Customers who have those products in their refrigerator or freezer can get a full refund.

“The safety of our customers is a top priority,” the Shaw’s statement said.

The Fairbank outbreak comes less than two weeks after a group of 20 students and chaperones from Lincoln, R.I., got sick from tainted ground beef they ate during a visit to Camp Bournedale in Plymouth.

That meat came from South Shore Meats. Two of the sixth-graders were hospitalized. South Shore Meats has already recalled more than 1,000 pounds of hamburger and other meat.

Marler says two such recalls from the same area at the same time are usually connected by a common slaughterhouse source, but state health department spokeswoman Jennifer Manley said tests now show the two recalls to be unrelated.

Lane Lambert may be reached at