This website provides projections of the future costs and impact of PMTCT in low- and middle-income countries. It uses assumptions about the need for PMTCT, transmission rates and costs for different PMTCT regimens and alternate scenarios to project the number of women on PMTCT, new infections, and associated costs from 2012 to 2017. The default costs and targets found in this website, are global data and thus do not reflect regional or country variation. Users can and should enter country specific information where available. Additional help can be found by clicking here.