Evolution of prevention of vertical HIV transmission in Uganda: 2008-2017

HIV Med. 2023 May;24(5):605-615. doi: 10.1111/hiv.13449. Epub 2022 Nov 30.

Abstract

Objectives: Uganda adapted its policy for prevention of vertical transmission (VT) of HIV transmission as the World Health Organization released Options A, B and B+. We assessed trends in diagnostic testing, breastfeeding practices, maternal and infant antiretroviral therapy (ART), mortality, VT and HIV-free survival (HFS) among Ugandan infants born to women living with HIV during this period of successive guideline changes.

Methods: This is is a retrospective observational study of infants attending early infant diagnosis clinics at two Ugandan hospitals.

Results: A total of 1885 infants (48% female) were managed from 2009 to 2017. DNA polymerase chain reaction (PCR) for early infant diagnosis was performed on 1719 infants (92%, one or more PCR tests) and 676 infants (36%, two PCR tests). HIV serology was performed on 90 infants (4.8%). Testing increased over the study period but remained suboptimal, due to high loss to follow-up (LTFU). A total of 93% of infants were breastfed, for a median of 9.5 months. The duration of breast milk exposure increased over the study period, consistent with guidelines that increasingly encouraged breastfeeding. Nine cases (0.48%) of suspected breast milk transmission were observed. The use of ART increased significantly over the study period. Mortality (3.5%, 2.7% and 1.1%; p = 0.0076) and VT (17%, 12% and 7.4%; p < 0.0001) decreased over the study period (2008-2010, 2011-2012 and 2013-2017, respectively). LTFU values were 31%, 49% and 59% at 6, 12 and 18 months of age, respectively, with only modest improvements over time. HFS could only be conclusively documented in 532 infants (28%) because of LTFU.

Conclusions: From 2009 to 2017, outcomes improved among HIV-exposed infants in Uganda. LTFU remains a barrier to optimal care.

Keywords: Africa; HIV; breastfeeding; global health; vertical transmission.

Publication types

  • Observational Study

MeSH terms

  • Breast Feeding
  • Female
  • HIV Infections* / drug therapy
  • HIV Infections* / prevention & control
  • Humans
  • Infant
  • Infectious Disease Transmission, Vertical / prevention & control
  • Male
  • Pregnancy
  • Pregnancy Complications, Infectious* / drug therapy
  • Retrospective Studies
  • Uganda / epidemiology