Pre-exposure prophylaxis (PrEP) for the prevention of HIV infection with 300 mg daily tenofovir co-formulated with 200 mg emtricitabine is recommended as one prevention option for people who are at substantial risk of acquiring an HIV infection. We report the case of a 28-year-old man who has sex with men and who was referred to our unit for a primary HIV infection with positive p18, p24 and gp160 bands on Western blot analysis but with a low HIV plasma viral load. Although HIV misdiagnosis should always be considered in cases of atypical seroconversion pattern with a low viral burden, unsupervised PrEP should be systematically investigated.
Keywords: Prevention; diagnosis; human immunodeficiency virus; sexual behaviour; treatment.