NEW YORK — McDonald's on Sunday (Oct 27) ruled out beef patties as a source of the E. coli outbreak linked to Quarter Pounder hamburgers, which has killed at least one person and sickened nearly 75 others.

"We remain very confident that any contaminated product related to this outbreak has been removed from our supply chain and is out of all McDonald's restaurants," the fast-food chain's chief supply chain officer Cesar Pina said in a statement.

The Colorado Department of Agriculture said that all subsamples from multiple lots of McDonald's brand fresh and frozen beef patties had tested negative for E. coli, adding that it had completed beef testing and does not anticipate receiving further samples.

McDonald's said it would resume distribution of fresh supplies of the Quarter Pounder and that it is expected to be available in all restaurants in the coming week, according to the statement.

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