The burger chain has now restarted selling Quarter Pounder burgers. It also gets its onions from a different farm.

With three kids, it wasn't hard to find taste testers ... this was a pretty good fare among the sesame seed bun burgers. The Quarter Pounder patty is bigger than the standard patty and threatens ...

While health officials are tracing the bacteria back to this food, which they believe came from the burger's sliced onions, Dorlisa Ferguson is steering clear of the Quarter Pounder to stay safe.