Antimicrobial resistance (AMR) is when microbes — viruses, bacteria and pathogens — develop resistance to drugs or disinfectants and render them ineffective. Microbiologically contaminated surfaces then serve as reservoirs — known as biofilms — that allow pathogens to survive for hours, weeks, or even months. In this infographic, we cover the primary health risks associated with biofilms and antimicrobial resistance, explain how they form on surfaces, and compare different disinfectants for their efficacy in killing microbes and bacteria.