Final exam - Disease Prevention 1 Prevention of illness...

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Disease Prevention 1. Prevention of illness, injury, disability, and death is the most significant objective of public health and epidemiology 2. To prevent disease: Agent Susceptible host Environment A. Break one of the connecting legs OR B. Remove, alter, or interfere with the agent, susceptible host, or environment 3. Disease prevention relies heavily on education because individual action is required in most cases 4. In public health/epidemiology, prevention strategies are placed in three categories: primary, secondary, and tertiary Primary Prevention Aim: Stop a disease before it occurs Primary Prevention of Infectious Diseases Primary prevention strategies for infectious diseases are well-developed and depend on 1. Education and personal action/behavior 2. Public health measures, laws, regulations Success of primary prevention strategies instituted since 1900 has resulted in a shift in the top causes of death from infectious diseases to chronic diseases 1. Interrupt human-human transmission of biological agents Examples: Antimicrobial drug treatment of infected people can prevent infection of others Personal hygiene & behavior: Handwashing; Condoms 1
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Quarantine 2. Interrupt animal-human transmission of biological agents (prevention of zoonoses) Examples: Control rodent populations Rabies vaccine for pets & wild animals 3.
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