Finocchario-Kessler S, Gautney B, Cheng A, et al. Evaluation of the HIV Infant Tracking System (HITSystem) to optimise quality and efficiency of early infant diagnosis: a cluster-randomised trial in Kenya. Lancet HIV 2018; 5: e696–705. In this Article, the 95% CI of the adjusted odds ratio for intention to treat should have read 1·4–2·7 in table 2. This correction has been made as of July 25, 2023.