IAFP 2015: Experts May Have Determined How Caramel Apples Caused That Listeria Outbreak
In November 2014, health officials began investigating two concerning clusters of Listeria infections that seemed to be related. The two strains of bacteria had already killed at least five people and hospitalized a few dozen others by the time they got on the case, and they wanted to find the source and stop it as quickly as possible.
Ultimately, the investigation led back to a very unexpected source. It was caramel apples, sold under various brand names but which all used apples traced to one distributor, Bidart Bros. of Shafter, CA.
Perhaps even more unexpected was the next observation: The Bidart Bros.…