A staph infection is caused by Staphylococcus bacteria, commonly found on the skin or in the nose of many people. The bacteria can enter the body through breaks in the skin such as cuts, wounds, or surgical incisions, leading to an infection. Transmission can occur through skin-to-skin contact, or by touching contaminated objects like towels, bedding, or medical devices. People with weakened immune systems, chronic illnesses, or skin conditions are more susceptible to these infections. Some strains, like MRSA, are resistant to standard antibiotics and can cause more severe infections.
