Section 1: Public Health and Public Health Practices/Investigations Public health is the discipline and skill for preventing diseases and injuries, extending the lifespan and endorsing wellbeing through structured public work, the control of communicable diseases, the union of medical and nursing facilities for the prompt identification and disease prevention, teaching individual health and to make sure a standard of living suitable for the conservation of health (Breslow et al, 2002).. Public health focuses the health of the people completely than the treatment of individuals (Beaglehole et al, 2004). The public health principles are meant for the public and other institutions that have a public health mission. Individuals and institutions that are not within the traditional public health but whom their activities have an impact on the health community find the code useful. The principles are used to recognize the risk causes and demonstrate the association amongst the three aspects that affect the incidence and prevention of disease. These factors are: Host, or the person or population with the disease; Agent, or the disease causing organism; and Environment, or location in which the host and agent interact. Understanding the incidence of disease is not sufficient to address preventive methods. The strategy needs to be comprehensive in three levels. Primary: Goal is to avoid proceedings that can cause result disease/injury, what can be done to avoid the disease/injury before the incident happens. Secondary: Goal is focused at changing the significances of events to avoid or lessen the severity of disease/injury. Tertiary: Aim is to limit long-term damages and disability. Passive strategies require no assistance or actions to th... ... middle of paper ... ...es, pp. 1-66. Jamison, DT 2006, World Bank & Disease Control Priorities Project, Disease control priorities in developing countries, New York: Oxford University Press. Lee, LM, Teutsch, ST, Thacker, SB & St. Louis, ME 2010, Ethics in Public Health Surveillance, Principles & Practice of Public Health Surveillance, pp.1-22 Nsubuga, P, White, ME, Thacker, SB, Anderson, MA, Blount, SB, Broome, CV, Chiller, TM, Espitia, V, Imtiaz, R, Sosin, D, Stroup, DF, Tauxe, RV, Vijayaraghavan, M & Trostle, M 2006, Public Health Surveillance: A Tool for Targeting and Monitoring Interventions, Disease Control Priorities in Developing Countries, 2nd edition, pp. 995-1016 Public Health Leadership Society, 2002, Principles of the Ethical Practice of Public Health, version 2.2, pp. 1-16 Smith, P & Hepple, B 2007, Public Health: Ethical Issues, London: Cambridge Publishers ltd.