processes by which the body defends against harmful pathogens
Immune mechanisms, also known as immune responses or immunological mechanisms, are the processes by which the body's immune system identifies and defends against harmful pathogens like bacteria, viruses, and other foreign substances. These mechanisms include the activation of white blood cells, the production of antibodies, and the release of signaling molecules like cytokines, all of which work together to neutralize or destroy the invaders and protect the body from infections and diseases.