The E. coli bacterium is found in ground beef and the CDC recommends cooking all ground beef and hamburger meat thoroughly and not eating ground beef which is still pink.

• 大肠杆菌也在牛肉中发现，CDC（疾病控制中心）建议对牛肉和肉饼彻底煮熟，对仍呈红色的牛肉不要食用。