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 Resistance: A Global Threat. Antibiotic resistance is the ability of bacteria to withstand the antimicrobial power of antibiotics. Simply put, antibiotics that used to cure an infection do not always work anymore. Antibiotic resistance is a global issue, and The US Centerâs for Disease Control and Prevention (CDC) considers antibiotic resistance one of their top concerns. Infections with drug-resistant bacteria may lead to longer and more costly hospital care, and may increase the risk of dying from the infection.[1]