immuniteedi
Immuniteet is a concept related to an organism's ability to resist a particular infection or toxin by the action of specific antibodies or sensitized white blood cells. This resistance is primarily achieved through the immune system, a complex network of cells, tissues, and organs that work together to defend the body against foreign invaders like bacteria, viruses, and parasites. When a pathogen enters the body, the immune system recognizes it as foreign and mounts a response to neutralize or eliminate it. This response can be immediate and general, known as innate immunity, or it can be slower and highly specific, called adaptive immunity.
Adaptive immunity is characterized by its memory. After encountering a pathogen, the immune system "remembers" it,