What preventive measure should be taken to reduce the risk of Listeria?

Maintaining proper refrigeration temperatures is essential for reducing the risk of Listeria. This bacterium thrives in temperatures that fall within the danger zone (between 40°F and 140°F), where it can multiply rapidly. Keeping food stored at or below 40°F slows down the growth of Listeria and helps to keep food safe for consumption.

Refrigeration also helps in extending the shelf life of perishable items, ensuring that they are less likely to become contaminated or to support the growth of harmful bacteria. This is particularly critical for ready-to-eat foods, deli meats, and dairy products, all of which can be sources of Listeria if not stored correctly.

Other options, such as thawing meat at room temperature or consuming unpasteurized dairy products, can actually increase the risk of Listeria contamination. Similarly, although avoiding raw fish can help minimize risks of other pathogens, it does not specifically address Listeria. Therefore, the focus on proper refrigeration is the most effective preventive measure for controlling this specific bacteria.