Elimination of paediatric HIV in kwazulu-natal, South Africa: Large-scale assessment of interventions for the prevention of mother-to-child transmission
Objective: To report the rates of mother-to-child transmission (MTCT) of the human immunodefciency virus (HIV), and the coverage of interventions designed to prevent such transmission, in KwaZulu-Natal.
Methods: Mothers with infants aged ≤ 16 weeks and fathers or legal guardians with infants aged 4-8 weeks who, between May 2008. and April 2009, attended immunization clinics in six districts of KwaZulu-Natal were included. The mothers' uptake of interventions for the prevention of MTCT was explored. Blood samples from infants aged 4-8 weeks were tested for anti-HIV antibodies and, if antibody-positive, for HIV deoxyribonucleic acid (DNA).
Findings: Of the 19 494 mothers investigated, 89·9% reported having had an HIV test in their recent pregnancy. Of the 19 138 mothers who reported ever having had an HIV test, 34.4% reported that they had been found HIV-positive and, of these, 13.7% had started lifelong antiretroviral treatment and 67.2% had received zidovudine and nevirapine. Overall, 40.4% of the 7981 infants tested were found positive for anti-HIV antibodies, indicating HIV exposure. Just 7.1% of the infants checked for HIV DNA (equating to 2.8% of the infants tested for anti-HIV antibodies) were found positive.
Conclusion: The low levels of MTCT observed among the infants indicate the rapid, successful implementation of interventions for the prevention of such transmission. Sampling at immunization clinics appears to ofer a robust method of estimating the impact of interventions designed to reduce such transmission. Large-scale elimination of paediatric HIV infections appears feasible, although this goal has not yet been fully achieved in KwaZulu-Natal.











































