The agency has issued a revised statement stating that an estimated 1,134,000 kilograms of beef entered the country that could potentially be contaminated with E. coli.
The previous estimate, released on September 28, said that almost 404,000 kilograms of the affected beef had entered the U.S.
The Canadian Food Inspection Agency, meanwhile, added yet more items to its long list of beef products that have been pulled from store shelves across Canada.
The latest additions on Sunday affect raw beef and ready-to-eat products sold in B.C. under the Africa Trading and HanAhReum Mart brands, or sold at Urban Fare.
The number of illnesses linked to beef products from the plant stands at 10 people from three provinces.
E. coli was first detected at the plant on Sept. 4, but it took 12 days for the first of numerous public alerts to be issued.
The U.S. agency statement says products in that country that are subject to recall include steaks, roasts, mechanically tenderized steaks and roasts and ground beef.
It says the products are considered "adulterated" and should be returned to the place of purchase or destroyed.
The XL plant, which handles 35 per cent of Canada's beef, remains closed.
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