On December 1, 2017, PulseNet, CDC’s molecular subtyping network for foodborne disease surveillance, identified a cluster of three Listeria monocytogenes clinical isolates. Review of reported exposures indicated that all three patients had consumed prepackaged caramel apples purchased from retail establishments in the month preceding illness onset.
— Read on www.cdc.gov/mmwr/volumes/68/wr/mm6803a5.htm