Preventive care includes the measures or steps taken for prevention of disease as opposed to disease treatment. Preventive care strategies are typically described as taking place at the primary, secondary, and tertiary prevention levels.Preventive Medicine focuses on the health of individuals, communities, and defined populations. Its goal is to protect, promote, and maintain health and well-being and to prevent disease, disability, and death. Preventive medicine specialists are licensed medical doctors (MD) or doctors of ostheopathy (DO), who possess core competencies in biostatistics, epidemiology, environmental and occupational medicine, planning and evaluation of health services, management of health care organizations, research into causes of disease and injury in population groups, and the practice of prevention in clinical medicine. They apply knowledge and skills gained from the medical, social, economic, and behavioral sciences.