you always hear that one of the ways to protect yourself is to cook this stuff thoroughly. order your burgers well done. god forbid. is that the case? can that protect you? >> yeah. you know, for most of these types of bacteria, they say about 160 degrees for ground beef, 145 degrees for steak. yeah, that is a very good way to keep things safe. i would say with this particular beef, if you have it, still throw it out. don't take any chances. >> because the fact is other meats can get e. coli. other foods. >> absolutely. >> so it's not just beef that runs this risk. sloo absolute >> absolutely. and you can cross-contaminate other foods as well. >> i'm not the vector. you can be the vector, too. >> i just called michaela a vector. >> wash your hands. use the meat thermometer. hopefully that information is on cnn.com. >> yes. >> you can check your freezer and fridge. >> we've got the lot number and also the retail stores. >> great to have you here. >> thank you. all right. still ahead, mom, this one is