HIV/AIDS Glossary

T Lymphocyte

Synonym(s): T Cell

A type of lymphocyte. There are two major types of T lymphocytes: CD8 cells (cytotoxic T lymphocytes) and CD4 cells (helper T lymphocytes); both T cell types are essential for a healthy immune system. HIV infects and destroys CD4 cells, gradually destroying the immune system.

Related Term(s): CD4 T Lymphocyte, CD8 T Lymphocyte, Lymphocyte

Search the Glossary

What's this?


AIDSinfo Glossary App

Download Glossary