Lu Ann Aday has undertaken extensive research on vulnerable populations, and in this book, she provides a comprehensive reference on the characteristics and needs of many at risk groups in America today--including the homeless, refugees, and immigrants, people suffering from AIDS, alcohol and substance abusers, high-risk mothers and infants, victims of family or other violence, and the chronically or mentally ill. Aday offers a systematic and cross-cutting overview of the issues that affect all these groups, and she discusses the steps necessary to achieve a more community-oriented health policy that can be effective in decreasing vulnerability.