Innate immunity is the immune system youre born with and mainly consists of barriers on and in the body that keep foreign threats out according to the national library of medicine nlm . The immune system is spread throughout the body and involves many types of cells organs proteins and tissues crucially it can distinguish our tissue from foreign tissue self from non self. The immune system which is made up of special cells proteins tissues and organs defends people against germs and microorganisms every day in most cases the immune system does a great job of keeping people healthy and preventing infections but sometimes problems with the immune system can . The immune system is a network of cells tissues and organs that work together to protect the body from infection immune memory follows the adaptive response when mature adaptive cells highly specific to the original pathogen are retained for later use read more about the features of an immune response immune cells
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