The bacterial diversity of HIV patients digestive microbiota seropositive is poorly understood, it remains to be defined.

Inclusion Criteria:

• Patient aged 18 or more.
• Patients with a confirmed diagnosis of HIV infection 1.
• Patient who signed an informed consent form.
• Patient affiliated or beneficiary of a social security system.

Exclusion Criteria:

• Patient known to be suffering from inflammatory bowel disease (Crohn's disease or ulcerative colitis).
• Patient HIV-2 or HIV-1/HIV-2 co-infected
• Patient having received immunotherapy
• Patient participating in another research.
• Pregnant women, parturient or lactating person under guardianship, or deprived of liberty by a judicial or administrative decision.

HIV-1 seropositive patients