In our Editorial this month the PLoS Medicine editors argue that the time has come to integrate prevention and treatment of HIV into maternal and child health care programs. Although tackling HIV is a priority within the Millennium Development Goals (MDGs) it is not specifically included in the MDGs for reducing child mortality and improving maternal health. A more integrated approach is needed, says the Editors, recognizing maternal and child health and HIV as concurrent crises. The Editorial concludes that "the time has come to stop tackling infectious diseases, specifically HIV, in isolation from other health goals, and instead to examine the opportunities for integrating and scaling up delivery of HIV prevention and treatment services within the context of maternal and child health care."