
Innate immunity
Innate immunity is the body's first line of defense against infections. It comprises physical barriers like skin and mucous membranes, as well as immune cells that respond quickly to pathogens. Unlike the adaptive immune system, which develops a targeted response over time, innate immunity acts immediately and is not specific to particular germs. It includes processes such as inflammation and the activity of white blood cells that can recognize and attack various invaders. This swift response helps prevent the spread of infections and provides crucial time for the more specialized adaptive immune system to take action if needed.