What percentage of people carry Staphylococcus Aureus on their skin, nose, or mouth?

Staphylococcus aureus is a common bacterium that resides on the skin and mucous membranes of many individuals. Research indicates that a significant portion of the population, specifically between 50 to 70 percent, carry this bacterium in their nasal passages, on their skin, or around their mouth. This range captures the prevalent nature of Staphylococcus aureus in healthy individuals, indicating that it can be part of the normal flora without causing harm.

Understanding the carrier state is crucial in food safety and public health, as carriers can potentially contaminate food and surfaces, leading to foodborne illnesses. Knowing that a large percentage of the population may unknowingly carry this bacterium underlines the importance of proper hygiene practices, especially in food handling settings, to prevent cross-contamination and ensure safe food preparation.