Programme Mwana is a Zambian mHealth initiative piloted over a year in 31 clinics across 13 districts in 6 provinces. It addresses early infant diagnosis of HIV and post-natal follow-up using RapidSMS, an open source framework. The programme delivered thousands of results and was pre-tested in 30 facilities. It uses mobile technology to significantly speed up getting infant HIV results to caregivers and increase post-natal visits. On average, results were 56% faster using the SMS system compared to the previous hardcopy method. The programme aims to scale up nationally to over 300 sites by this year.