Health programs, especially in low- and middle-income countries, have been integrating mHealth interventions at an unprecedented rate. There are now more than 1,000 mHealth products and services around the world, according to the GSMA mHealth Tracker. mHealth provides exciting opportunities for increasing access to health care for underserved populations. Consider that by the end of 2013, there were nearly 7 billion mobile subscriptions worldwide, with most of the growth in the past decade occurring in low- and middle-income countries.
One of the key articles in the current issue of Global Health: Science and Practice (GHSP) shows how mHealth interventions can transform the role of community health workers (CHWs) in the health system, from passive recipients of information with little influence to active information agents who seek and provide information to improve health services.