Innate Immunity

Innate immunity is the body’s natural defence against pathogens and other harmful agents. It is a non-specific response in which the body identifies and eliminates an intruder without prior exposure or instruction. It provides a first line of defence against infection and is typically activated within minutes of exposure to a pathogen. Innate immunity uses physical barriers, such as the skin, as well as biochemical mechanisms, such as inflammation and the production of antimicrobial peptides, to protect against disease-causing organisms. It is very important in providing an immediate, yet flexible, response to pathogens and other external threats, and helps ensure the body is able to respond to new or unfamiliar pathogens quickly and effectively.