“…3 Many members of these vulnerable populations are likely to experience key health communication barriers such as health literacy challenges, limited access to and ability to use key channels of communication (such as new information technologies), as well as suffer from serious social and economic problems that can limit their ability to get needed care and to follow cancer prevention and control recommendations. 4,5 There are a broad range of significant health risks confronting members of vulnerable populations today, including risks from cancers, heart disease, diabetes, stroke, HIV/AIDS, and other serious health threats. 6,7 Effective health communication is needed to help those members of the public who are at greatest risk (most vulnerable) for suffering from these health threats to recognize, minimize, and respond effectively to potential health problems.…”