The HIV infection not fully controlled, despite being under antiretroviral treatment, could make virus resistance against the antiretroviral treatments, making hardest the well control of HIV infection. The purpose of this research study is to confirm or deny if a not fully good controlled HIV infection could develop virus resistance against antiretroviral drugs that can difficult the good control of the HIV infection.
Patients able to understand and sign the informed consent form.
Documented HIV-1 infection.
Under the first line TLD for at least 6 months.
At least 3 months follow-up with CV >200c/ml.
Patients <18 years of age.
Under the first line regime other than TLD.
Patients with active neoplastic processes.
Patients with active opportunistic diseases.