Study of the Prevalence of Transmitted HIV-1 Resistance, Viral Diversity, and Cluster Identification in Patients at the Time of HIV-1 Diagnosis

Inclusion Criteria: * Participant (male or female) aged 18 years or older ; * Participant newly diagnosed in the laboratory, for whom mandatory HIV seropositivity reporting to Santé Publique France (SPF) is required ; * Participant naïve to all antiretroviral treatments (except PrEP and/or post-exposure prophylaxis \[PEP\]) ; * Participant with an available HIV resistance genotype, including amplification of at least reverse transcriptase and protease ; * Participant who has not objected to participating in the study. Exclusion Criteria: * Participant who objects to the use of their data ; * Participant currently on antiretroviral treatment ; * Participant subject to legal protection measures (safeguard of justice).