A slide show of methicillin-resistant Staphylococcus aureus, or MRSA, is available on WebMD. The slide show features images of the bacterium and the infection it produces.
MRSA is a strain of the Staphylococcus bacteria, commonly known as staph, that is resistant to the antibiotics used to treat common staph infections, explains WebMD. This antibiotic-resistant quality means that serious MRSA infections can become life threatening, though most infections are minor. Most MRSA infections occur when someone with an open cut touches a person or object that carries the bacteria. Practicing proper hygiene helps to prevent MRSA infections. People with long-term illnesses like diabetes, cancer or HIV are more susceptible to MRSA infections.