Listeria Explained: Your Guide to the Bacteria Behind Recent Outbreaks In autumn 2022, listeriosis outbreaks linked to contaminated deli meats, cheese, and ice cream thrust the threat of Listeria bacteria into headlines in an anxiety-inducing way most Americans had not encountered since perhaps romaine lettuce E.coli scares. With society on edge navigating public health vulnerabilities exposed by the Covid-19 pandemic, these high-profile Listeria recalls from widely trusted brands including Italian-style meats and a national ice cream producer alarmed many consumers about...