Which of the following is NOT a prevention measure for controlling E. Coli O157:H7?

Drinking raw cow's milk is not a recommended prevention measure for controlling E. Coli O157:H7. In fact, consuming raw milk poses a higher risk as it can be a source of harmful bacteria, including E. Coli, which may not be eliminated during the pasteurization process. Pasteurization involves heating milk to a specific temperature to effectively kill harmful pathogens, thereby making it safer for consumption.

In contrast, the other measures listed—cooking beef thoroughly, avoiding cross-contamination, and washing hands before cooking—are established practices that significantly reduce the risk of E. Coli infection. Cooking beef thoroughly ensures that any bacteria present are killed, while avoiding cross-contamination prevents the transfer of pathogens from raw food to cooked food. Handwashing before cooking is crucial for maintaining hygiene and preventing the spread of bacteria. These preventive strategies are essential components of food safety practices in order to mitigate the risk of E. Coli O157:H7 and other foodborne illnesses.