Antimicrobial resistance (AMR) occurs when disease-causing pathogens are able to withstand the killing or suppressing power of antimicrobial medicines. This phenomenon increases the global burden of infectious diseases and strains health systems.This course aims to improve the learner's awareness and understanding of the basic principles of AMR, the impact AMR has on individuals and society, and why it is a major public health concern. A complementary course, Antimicrobial Resistance (Part 2), describes interventions that address the multiple factors contributing to AMR across the health system.