T cell repertoire

The T cell repertoire refers to the diverse collection of T cells in the body, each equipped with unique receptors that can recognize specific parts of pathogens like viruses or bacteria. This diversity allows the immune system to identify and respond to a wide range of infections. When a new threat appears, T cells with matching receptors activate to fight it. The size and diversity of this repertoire are vital for effective immunity, enabling the body to respond to both familiar and novel threats quickly.