Freebase(0.00 / 0 votes)Rate this definition: Necrosis. Necrosis is a form of cell injury that results in the premature death of cells in living tissue. Necrosis is caused by factors external to the cell or tissue, such as infection, toxins, or trauma that result in the unregulated digestion of cell components.
Staph bacteria are commonly carried on the skin or in the nose of healthy people. MRSAâmethicillin-resistant Staphylococcus aureusâis a type of staph that is resistant to antibiotics called beta-lactams. In the past the majority of MRSA infections occurred among patients in hospitals or other health care settings.
Antibiotic-resistant staph infection is an infection caused by a type of bacteria that cannot be killed by many commonly used antibiotics. This makes it hard to treat and stop the infection. The bacteria causing these infections are a type of Staphylococcus bacteria. They are often simply called staph.A commonly used name for resistant staph bacteria is methicillin-resistant staphylococcus aureus, or MRSA (often pronounced as mer-suh).MRSA infections happen most often in people who have a weakened immune system and have received healthcare in a hospital or other healthcare facility.t can also spread the infection. Often antibiotics are not needed after the infection is drained. If an antibiotic is needed, the infection will be treated with the type of antibiotic that is most likely to kill the bacteria.