Key Points

HIV Infections and AIDS

• In French Guiana, the completeness of mandatory HIV reporting remained very low in 2024 (27%). After an increase in the reporting rate between 2021 and 2023, it fell back to its lowest level (23%, 2021). At this stage, mandatory reporting does not allow for a reliable assessment of the incidence rate of HIV infections in French Guiana and its trends, an essential indicator for monitoring the epidemiological situation.

• Since the proportion of reports submitted by clinicians was very low in 2024 (3.2%), it was not possible to estimate the number of new HIV diagnoses or to describe the characteristics of new cases.

• The HIV testing rate increased in 2024. Women aged 25 to 49 were the most likely to undergo testing, while the lowest testing rate was observed among men aged 15 to 24.

• Between 2022 and 2024, an increase in the testing rate was observed alongside a decrease in the rate of positive serology results, indicating a downward trend in positive HIV serology results since 2022.

Chlamydia trachomatis (Ct), gonorrhea, and syphilis infections

• Testing rates for Ct, gonorrhea, and syphilis infections were more than twice as high as those observed nationally and slightly higher than in 2023. Screening rates for the three pathogens were highest among women aged 26–49, while screening rates were lowest among men aged 15–25 (as well as among men over 50 for Ct and gonococcal infections).

• Positive diagnosis rates were rising for Chlamydia and syphilis infections and falling for gonorrhea infections. Positive diagnosis rates were highest among women aged 15–25 (followed by women aged 26–49 for Chlamydia and syphilis infections).