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Updated: Jan 13, 2026

An Affordable HIV-1 Drug Resistance Monitoring Method for Resource Limited Settings
Published on: March 30, 2014
Low Rates of Virologic Failure and Acquired HIV-1 Drug Resistance Among Children in Cameroon: Evidence Following
Marie Laure Ndjolo Ada1,2, Joseph Fokam1,2,3,4,5, Nelly Kamgaing1,2,6
1From the Faculty of Medicine and Biomedical Sciences, University of Yaoundé I.
Insights
Pediatric dolutegravir-based ART showed strong virologic response in Cameroonian children living with HIV. Combining effective ART with adherence support is key to advancing HIV elimination goals.
Area of Science:
- Pediatric infectious diseases
- HIV/AIDS research
- Public health in sub-Saharan Africa
Background:
- Virologic failure (VF) in children living with HIV (CLHIV) is a significant challenge in sub-Saharan Africa, with high rates observed in Cameroon.
- The introduction of pediatric dolutegravir (pDTG)-based antiretroviral therapy (ART) presents a new approach to managing HIV in CLHIV.
Purpose of the Study:
- To evaluate predictors of virologic response among CLHIV in Cameroon.
- To assess the prevalence of HIV drug resistance (HIVDR) in CLHIV receiving pDTG-based ART.
Main Methods:
- A facility-based longitudinal study was conducted from November 2022 to April 2023 in Yaoundé, Cameroon.
- Plasma viral load (PVL) and HIVDR were assessed in CLHIV aged 0-10 years on pDTG-based ART.
- VF was defined as two consecutive PVL ≥1000 copies/mL, with interventions including adherence counseling and support.
Main Results:
- Out of 318 participants, 94.03% received pDTG-based ART. At enrollment, 11.6% of children had viral loads ≥1000 copies/mL, with higher odds associated with rural origins and poor adherence.
- Following adherence support, only 3 out of 311 children (less than 1%) experienced VF.
- HIVDR mutations were detected in less than 1% of children with VF.
Conclusions:
- Children on pDTG-containing ART in Cameroon demonstrated a strong virologic response.
- Integrating effective ART regimens with active adherence support strategies can contribute to sustained progress towards HIV elimination in children by 2030.
Background:
Virologic failure (VF) in children living with HIV (CLHIV) remains challenging in sub-Saharan Africa, reaching alarming rates in Cameroon. We sought to evaluate predictors of virologic response and HIV drug resistance (HIVDR) among CLHIV in Cameroon during the introduction of pediatric dolutegravir (pDTG)-based antiretroviral therapy (ART).
Methods:
We conducted a facility-based longitudinal study from November 2022 through April 2023 among CLHIV (age 0-10 years) attending the Chantal BIYA Foundation's Mother and Child Centre in Yaoundé-Cameroon. Plasma viral load (PVL) and HIVDR were evaluated, with VF defined as 2 consecutive PVL ≥1000copies/mL under active adherence counseling/support.
Results:
Overall, the 318 enrolled participants had a median (interquartile range) age of 8 (6-9) years and 162/318 (50.9%) girls. Most (299/318, 94.03%) received pDTG-based ART and mean ART duration was 5.6 ± 2.6 years. At enrollment, 37 (11.6%) children were virally unsuppressed (PVL≥1000copies/mL), with higher odds among children from rural areas ( P = 0.018) and among those reporting poor adherence ( P < 0.001). After active adherence counseling and support, 30/37 (81.1%) children were resampled after 1 month and 3 remained unsuppressed, indicating <1% (3/311) with VF overall. Among those experiencing VF, HIVDR mutations were found in <1% (2/311) children [L74V(1/3), K103N(1/3), M184V(2/3), P225H(1/3)].
Conclusions:
Virologic response among children receiving pDTG-containing ART was strong in Cameroon. Combining robust ART regimens with active adherence support can advance sustained progress towards HIV elimination in children by 2030 in sub-Saharan Africa.
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