Staphylococcus aureus is a bacteria found on the person (skin, in the nose, armpit, groin and other areas), which can contaminate equipment and environmental surfaces. While these germs don’t always cause harm, they can cause Staphylococcal food poisoning. Humans are considered to be the major source of staphylococcal food poisoning. Detection of staphylococcus aureus is critical for presenting safe food products to consumers.