Top PhD in Public Health programs will often offer you a choice of focus areas so that you can align your program with your interests and career goals. At Walden, students can choose between two specializations: Epidemiology and Community Health Education. The Epidemiology specialization centers on infectious and chronic diseases, how these diseases affect community health, and the strategies used to maintain the health of communities. If you’re more interested in improving the overall health of communities by examining available resources, living conditions and environment, and public health systems, the Community Health Education specialization may be right for you.