Name one bacterial pathogen that can survive at refrigeration temperatures.

Listeria monocytogenes is a bacterial pathogen notable for its ability to thrive in refrigeration temperatures. This characteristic is particularly concerning in food safety because many pathogens typically do not grow at these lower temperatures. Listeria can replicate in cold environments, such as those found in refrigerators, making it a significant risk in ready-to-eat foods and dairy products that may not undergo further cooking.

This pathogen poses a substantial threat due to its potential to cause listeriosis, particularly in vulnerable populations such as pregnant women, newborns, elderly individuals, and those with compromised immune systems. Understanding Listeria’s ability to survive and grow in chilled conditions highlights the importance of proper food handling and storage practices to minimize the risk of infection.

In contrast, other pathogens like Escherichia coli, Staphylococcus aureus, and Salmonella enterica typically do not grow at refrigeration temperatures, and while they can survive for certain periods, their growth rates are significantly hindered in cooler environments. This distinction makes Listeria monocytogenes unique among foodborne pathogens and underscores why it must be vigilantly controlled in food service operations.