Which pathogen is known to commonly grow in TCS foods?

The correct answer relates to Listeria monocytogenes, which is a pathogen known for its ability to thrive in temperature-controlled for safety (TCS) foods. TCS foods are items that require strict temperature control to prevent the growth of harmful microorganisms.

Listeria monocytogenes is particularly notorious for being able to multiply at refrigeration temperatures, making it a significant concern in foods that are stored and held in these conditions, such as deli meats, soft cheeses, and ready-to-eat foods. This pathogen can lead to serious illness, especially in vulnerable populations like pregnant women, the elderly, and individuals with weakened immune systems.

The tendency of Listeria to grow even in lower temperatures distinguishes it from other pathogens that might also pose risks in TCS foods but do not have the same capacity to proliferate when kept at cool temperatures. This makes understanding how and where Listeria can grow critical for food safety management practices.