Including McDonald’s, Taco Bell, Pizza Hut, KFC, and Burger King.

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Thedeadly E.coli outbreakfirst linked to McDonalds Quarter Pounder hamburgers has just gone from bad to worse.

Thus far, the E.coli outbreak has only sickened people who reported eating McDonalds Quarter Pounders.

Onion recall

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A spokesperson for the agency would only share that it is currently looking at all sources of the outbreak.

Still, other fast-food chains are already taking preventative measures in an effort to prevent the outbreak from growing.

It is marked by easy bruising, pallor, and decreased urine output.