Predictors of Detectable Viremia, Outcomes, and Implications for Management of People Living With HIV Who Are Receiving Antiretroviral Therapy in Southern Nigeria.

Background: This study examined the prevalence and factors associated with detectable viremia, as well as clinical outcomes among people with HIV (PWH) receiving antiretroviral therapy (ART) who initially achieved viral suppression in 2 southern states in Nigeria. Methods: The retrospective cohort study used data from the electronic medical records of 96 comprehensive ART centers. PWH were followed up who achieved viral suppression (viral load [VL] ≤50 copies/mL) upon starting ART based on the first VL test. We examined the presence of detectable viremia in follow-up VL results, graded by the absolute VL count from the second and third consecutive VL tests as follows: transient viremia (second follow-up VL, 51-999 copies/mL; third, ≤50 copies/mL), persistent viremia (second follow-up VL, 51-999 copies/mL or ≥1000 copies/mL; third, >50 copies/mL), and virologic failure (second and third follow-up VL, >1000 copies/mL). We analyzed demographic and clinical factors associated with detectable viremia using logistic regression analysis on Stata 14. Results: Overall, 15 050 PWH had achieved viral suppression following ART initiation (median age, 34 years; 71.3% female). On follow-up, 3101 (20.6%) had a viremic event: 11.6%, transient viremia; 8.8%, persistent viremia; 0.2%, virologic failure. Shorter duration of ART (P < .001), being 0 to 14 years of age (P < .001), and not being enrolled in a differentiated service delivery model (P < .001) were significantly associated with detectable viremia. Conclusions: Our study shows that people who initially attain vial suppression upon starting ART remain at risk of detectable viremia.

Improved access to HIV diagnosis and linkage to antiretroviral therapy among children in Southern Nigeria: a before-after study.

BACKGROUND: Globally, two out of five children living with HIV (CLHIV) are unaware of their HIV status, and a little more than 50% are receiving antiretroviral therapy (ART). This paper describes case-finding strategies and their contribution to identifying CLHIV and linking them to ART in Nigeria. METHODS: This before-after study used program data abstracted during the implementation of different paediatric-focused strategies (provider-initiated testing and counselling, orphans and vulnerable children testing, family-based index testing, early infant diagnosis (EID), community-driven EID, and community-based testing) delivered in health facilities and in communities to improve HIV case identification. Data were abstracted for children (0 to 14 years) who received HIV testing services and were initiated on ART in Akwa Ibom State, Nigeria during the pre-implementation period (April-June 2021) and during the implementation period (July-September 2021). Descriptive statistics were used to describe the testing coverage, positivity rate (proportion of tests that were positive for HIV), linkage to ART, and ART coverage, by age, sex, and testing modality. Interrupted time series analysis (ITSA) on STATA 14 was used to estimate the effect of the implementation of these strategies on HIV testing uptake and positivity rate at a 0.05 significance level. RESULTS: A total of 70,210 children were tested for HIV within the six-month period, and 1,012 CLHIV were identified. A total of 78% (n = 54,821) of the tests and 83.4% (n = 844) CLHIV were diagnosed during the implementation period. During implementation, the HIV positivity rate increased from 1.09% (168/15,389) to 1.54% (844/54,821), while linkage to ART increased from 99.4% (167/168) to 99.8% (842/844). The contribution from community-based modalities to CLHIV identified increased from 63% (106/168) to 84% (709/844) during the implementation, with the majority, 60.8% (431/709), from community-based index testing. Overall, ART coverage increased from 39.7 to 55.6% at the end of the intervention period. CONCLUSION: The findings show that expanding differentiated HIV testing approaches provided mostly in the community significantly increased pediatric case identification. However, ART coverage remains low, especially for younger age groups, and requires further efforts.

Achieving HIV epidemic control through integrated community and facility-based strategies: Lessons learnt from ART-surge implementation in Akwa Ibom, Nigeria.

This study examines the lessons learnt from the implementation of a surge program in Akwa Ibom State, Nigeria as part of the Strengthening Integrated Delivery of HIV/AIDS Services (SIDHAS) Project. In this analysis, we included all clients who received HIV counseling and testing services, tested HIV positive, and initiated ART in SIDHAS-supported local government areas (LGAs) from April 2017 to March 2021. We employed descriptive and inferential statistics to analyze our results. A total of 2,018,082 persons were tested for HIV. Out of those tested, 102,165 (5.1%) tested HIV-positive. Comparing the pre-surge and post-surge periods, we observed an increase in HIV testing from 490,450 to 2,018,082 (p≤0.031) and in HIV-positive individuals identified from 21,234 to 102,165 (p≤0.001) respectively. Of those newly identified positives during the surge, 98.26% (100,393/102,165) were linked to antiretroviral therapy compared to 99.24% (21,073/21,234) pre-surge. Retention improved from 83.3% to 92.3% (p<0.001), and viral suppression improved from 73.5% to 96.2% (p<0.001). A combination of community and facility-based interventions implemented during the surge was associated with the rapid increase in case finding, retention, and viral suppression; propelling the State towards HIV epidemic control. HIV programs should consider a combination of community and facility-based interventions in their programming.