http://www.cdc.gov/drugresistance/
National Center for Infectious Diseases, Centers for Disease Control and Prevention
Drug resistance, more technically known as antimicrobial resistance, is a growing concern among health professionals and others around the world. This site is designed to provide both general and technical information about antimicrobial resistance, including methicillin-resistant Staphylococcus aureus (MRSA) and vancomycin-resistant Staphylococcus aureus (VRSA).