RESEARCH ARTICLE o t e

Full list of author information is available at the end of the articleday, the majority of which occur in sub-Saharan Africa [1]. In this part of the world, the combination of high HIV prevalence, high birth rates and under-resourced health systems have resulted in a heavy toll on children’s health outcomes. Recent years have seen rapid and significant progress in science and implementation of programs to prevent MTCT. Proven interventions for prevention of mother-to-monitor service provision but very few have measured their effectiveness [5,6]. Data on effectiveness of PMTCT programs are crucial to not only gauge if programmatic and operational tar-gets are being reached, but also to continually refine provision of PMTCT services in order to control the pediatric HIV epidemic