Functions of the Public Health System Public health at the community, state, and national levels. The course addresses the philosophy, purpose, history, organization, functions, activities and impact of public health practice. Discussion questions and case studies, integrated into the course, serve to stimulate student participation in gaining in-depth knowledge about real world public health issues and practice. Three hours lecture . Clinical Microbiology For health science professionals, covering the biology, virulence mechanisms and identification of infectious agents important in human