Research in finding a cure for AIDS is moving at a fast pace. The role of fusin in helping the HIV virus attach itself to the cells was recently identified. Now researchers are saying that chemokines, chemical messages that summon blood cells to the site of inflammation can stop the HIV from reproducing. Chemokines do not let HIV to enter blood cells, thus blocking their spread. The chemokine receptor is called CC-CKR-5. Some strains also use other receptors identified as CKR-3 and CKR-2b.