Decade of Danger: How a California Cheese Manufacturer Became Ground Zero for a Listeria Outbreak
In Honolulu, Hawaii, health officials uncovered a chilling food safety issue tied to a popular cheese product. In early 2024, a sample of cotija cheese from Rizo Lopez Foods, a dairy manufacturer based in California, tested positive for Listeria monocytogenes, the bacterium responsible for the serious illness listeriosis. This discovery sparked an extensive investigation, leading to troubling revelations about the company’s operations. The bacterial contamination prompted the entire dairy catalog of Rizo Lopez, totaling approximately …