Pathogen resistance refers to the ability of an organism, such as a plant, animal, or human, to withstand infections caused by harmful microorganisms like bacteria, viruses, and fungi. This resistance can be innate, meaning it is present from birth, or acquired through exposure to pathogens or vaccination. In agriculture, crop varieties may be developed to exhibit pathogen resistance, reducing the need for chemical treatments and improving yields. In humans, antibiotic resistance is a growing concern, as some bacteria evolve to survive treatments, making infections harder to treat. Understanding and enhancing pathogen resistance is crucial for health and food security.