Investigation status: Closed
Don’t eat any soft cheeses like queso fresco, unless they are labeled “made with pasteurized milk.” This is especially important if you are pregnant, aged 65 or older, or have a weakened immune system due to certain medical conditions or treatments. This is because you are at higher risk for severe Listeria illness.
Be aware that Hispanic-style fresh and soft cheeses made with pasteurized milk have caused Listeria outbreaks, including this outbreak. Although pasteurization of milk kills Listeria, soft cheeses made from pasteurized milk can still become contaminated if they are produced in facilities with unsanitary conditions.