What is the main type of bacteria found in approximately five to ten percent of raw bovine milk?

Listeria monocytogenes is known to be the main type of bacteria found in approximately five to ten percent of raw bovine milk. This bacterium is significant due to its ability to survive and grow at refrigeration temperatures, which predisposes it to contaminate dairy products, especially unpasteurized ones. Listeria monocytogenes can lead to severe foodborne illness, particularly in susceptible populations such as pregnant women, the elderly, and immunocompromised individuals, making it a critical concern in food safety and public health. The prevalence of Listeria in raw milk highlights the importance of pasteurization and the careful handling of dairy products to reduce the risk of foodborne diseases.