Antibiotic resistance is when bacteria are able to survive and grow in the presence of one or more antibiotics. When this occurs, the resistant bacteria continue to cause infection. Resistant bacterial infections are a major health problem in many parts of the world. In recent years, antibiotic resistance has increasingly become an uncontrollable health problem. Bacterial infections caused by resistant strains can be found in hospitals around the world. Antibiotics are able to control bacterial infections, interfering with microbial metabolism and physiological processes. Although multiple compounds are often used, cases of resistance to a majority of antibiotic classes used in hospitals have been reported.