A newly pregnant woman presents to the clinic today with concerns about what foods she can and cannot safely eat during pregnancy. Which of the following statements is incorrect regarding a possible Listeria infection?
1) Listeria infection can be caused by consuming contaminated deli meats and hot dogs.
2) Listeria infection can be transmitted through unpasteurized dairy products.
3) Listeria infection can be prevented by thoroughly cooking all meats and seafood.
4) Listeria infection is not a concern during pregnancy.