Staphylococcus aureus (staph) is a common type of bacteria which is often found on the skin, in nostrils and in the throat. According to the CDC, one in three people carries it in their nose without being affected by it. It can cause mild infections of the skin, but if the bacteria gets into the bloodstream it hast the potential to become life threatening by poisoning blood.Multidrug-resistant Staphylococcus aureus (MRSA) has been a concern for many years in hospitals. People with infected with this form of the bacteria are estimated to be 64% more likely to die than people with a non-resistant form of the infection.