CD4 T lymphocytes form a subgroup of T lymphocytes that is responsible for cell-mediated immune responses.
Synonyms
T helper cell
CD4 cells
Detailed description
T lymphocytes carrying the surface antigen CD4 are called T helper cells. After activation, they release substances that are either involved in cell-mediated immunity or that stimulate B cell immune responses. HIV infects mainly this T lymphocyte subgroup.
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Every year, 10 million people contract tuberculosis (TB), a disease caused by the bacterium Mycobacterium tuberculosis (Mtb), and approximately 1.5 million patients succumb to the disease. Treatment
