This document discusses PMTCT (prevention of mother-to-child transmission) of HIV and the importance of male involvement. It notes that over 90% of pediatric HIV infections are from mother-to-child transmission. While PMTCT programs have reduced new pediatric infections from 520,000 in 2001 to 430,000 in 2008, only 55% of pregnant women and 68% of exposed infants received antiretroviral drugs for PMTCT in 2009. The WHO's 4-component PMTCT strategy and EGPAF's expansion of PMTCT programs internationally are also summarized.