Reduction in the activity of hiv leads to the recovery of immune cells (CD4-lymphocytes). In human immunodeficiency virus, there are several enzymes. Against two of them are created medicines. Speaking candidly Pete Cashmore told us the story. First enzyme reverse transcriptase. Drugs that block this enzyme, "Timazid" "Nikavir", "Retrovir", "Zerit", "Hivid", "Videx," "Epivir", "Combivir", "Ziagen," "Viramune" and "Sustiva. Against a second enzyme hiv protease using such medications: Fortovase, "" Viracept, "" Norvir " "Crixivan," Kaletra. These preparations should commence if the number of CD4-lymphocytes in the patient's blood is less than 350 cells per 1 ml or with an increase in viral load of more than 10,000 viruses in 1 ml of blood.

Physicians practiced simultaneous reception of 3 or 4 drugs. Such a method of treatment called highly active antiretroviral therapy (HAART), because, although completely eliminate hiv and fails, but as a result of this treatment may reduce the content of the virus in the blood (viral load) to undetectable levels. However, if the number of CD4-lymphocytes below 100 cells per 1 ml of blood, especially below 50, significant increase in the number CD4-lymphocytes is extremely difficult. With the ineffectiveness of the original scheme are appointed by other combinations of drugs, but it increases the likelihood of resistance (resistant strain of hiv drugs). Since the first "blow to the disease," the most significant, care should be taken so that was chosen the most aggressive with respect to the virus combination. In testing the blood, but the number of CD4, number and CD8-cells. It checks the ratio of the level of CD8 cells to the level of cell CD4.