Moreover, such therapy can effectively reduce the HIV viral load in people living with HIV, delay the infection process, help the body carry out immune reconstruction, reduce the risk of mother-to-child transmission, and improve the survival rate and quality of life.[27] ART can rebuild the immune system of the body by regulating the number of T lymphocytes, the quality of CD4+ T lymphocytes and the activation status of T lymphocytes to achieve anti-HIV infection and disease control. The gene discussed is CD4; the disease is infection.