For 10 points, name this virus which causes AIDS.
This agent's Tat protein interacts with the CXCR4 receptor, and its binding ability may be affected by EGCG, found in green tea. It has Pol, Gag, and Env genes, and its envelope incorporates gp120. Antibody tests for this pathogen have a 3-week window period, and treatments for it include nucleoside analogues like azidothymidine or AZT. Infection with this retrovirus causes an increase in cytotoxic T-cells and a reduction in CD4+ helper T-cell count. First discovered in 1981, this virus can be transmitted through breastmilk, semen, and blood. For 10 points, name this virus which causes AIDS.
This agent's Tat protein interacts with the CXCR4 receptor, and its binding ability may be affected by EGCG, found in green tea.
{Human Immunodeficiency} Virus [accept {HIV}]