Evaluation of an Adaptative, Multidisciplinary, Reach-out Program, Facilitating Pre Exposition HIV Prophylaxis (PrEP) Prescription and Retention in Care, in a Group of Trans Womens (TW) at High Risk of HIV Infection.

Inclusion Criteria: * Trans woman ≥ 18 years old; Negative HIV-1 and HIV-2 serology; Participant on PrEP or request to start PrEP or reporting present, past or future exposure to HIV; Participant agreed with the constraints imposed by the study (every 3 months visits); Non opposition. Exclusion Criteria: * Subject with positive HIV serology; Subject with clinical signs suggesting a primary HIV infection; Subjects planning to travel/live abroad for more than 3 consecutive months or planning to live outside Ile-de-France region; Creatinine clearance \< 60 mL/min (Cockroft's formula); History of chronic kidney disease, osteoporosis, osteopenia; Subject receiving a potentially nephrotoxic treatment (long-term nonsteroidal anti-inflammatory drugs); Ongoing post-exposure antiretroviral therapy (the participant may be tested 6 weeks after the end of treatment); Treatment under investigation; Chronic gastrointestinal illness (or chronic nausea or vomiting) interfering with intestinal absorption; HBs antigen positive or with an isolated anti-HBc antibody if participant is not ready to take continuous PrEP; Life-threatening illness (cancer) or other serious illness (cardiovascular, renal, pulmonary, unstable diabetes) which would require treatment that could interfere with treatment adherence; Hypersensitivity to one of the components of TDF / FTC.