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.
Most types of bacteria (germs) can be treated with antibiotics. Multi-drug resistant organisms are bacteria (germs) that have become resistant to many antibiotics. Some of these germs make enzymes (substances) which do not allow the antibiotic to work. That means that certain antibiotics will not be effective in killing or controlling the bacteria. Examples of MDROs are: