[header] How to prevent infections during pregnancy [title] Choose pasteurized milk and cheese products. [step] Avoid eating unpasteurized dairy products, especially soft cheeses, such as brie, camembert, feta, and queso fresco. Raw milk is also not recommended during pregnancy. 
These dairy products can contain a bacteria called listeria, which can harm you and your baby. [substeps] Infection with listeria bacteria (called listeriosis) can cause flu-like symptoms, such as muscle aches or fever, and even miscarriage.