Abbott’s wording is actually very strong here. A complaint in the industry is anything reported confirmed or unconfirmed. So this means that no one has even alleged such a contamination has occurred - not just that it was proven untrue, but never even made.
Complaint records are strictly controlled by regulation and reviewed by the FDA in depth, so this isn’t something Abbott would word and claim like this unless it were true.
They (Kaiser #FakeNews) actually relied on a “former HHS” (aka Obama) appointee for their story.