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WEEK 13 - Coggle Diagram
WEEK 13
Systems Thinking
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New approaches to disease often combine primary, secondary, and tertiary interventions. Postexposure treatments are being extensively investigated as well. Detection during the first few weeks, when transmissibility is greatest, is being investigated as an important new intervention
Initially, systems thinking focused on identifying multiple interventions for high-risk foods one type of food at a time. This process has been called the Hazard Analysis and Critical Control Points (HACCP) system
In the emerging systems thinking approach to food safety, a barcode details a food’s origin processing location, and time of production down to the level of the field or factory. This allows public health officials to trace the food back to where and when the problem occurred
Community Health Assessment -
a systematic examination of the health status indicators for a given population that is used to identify key problems and assets in a community. The ultimate goal of a community health assessment is to develop strategies to address the community’s health needs and identified issues. A variety of tools and processes may be used to conduct a community health assessment; the essential ingredients are community engagement and collaborative participation
Systems Thinking
An approach that examines multiple influences on the development of an outcome or outcomes and attempts to bring them together in a coherent whole
Traditional thinking in public health, like most science-based disciplines, has used what is called reductionist thinking
Reductionist thinking - an approach to problem-solving that looks at each of the components of a problem one at a time
Magic bullet or miracle cure approach -reductionist thinking has often been used in public health and medicine to search for the one-and-only answer to the why or etiology and the one-and-only answer to what should be done to improve an outcome
often utilizes data derived from reductionist thinking to identify key factors or influences and weights these factors, indicating their relative importance
Systems Analysis
systems analysis - the process of implementing or operationalizing systems thinking requires tools for analyzing the pieces and understanding how they fit together
When using systems analysis to understand disease and its outcomes, we need to start by identifying the most important influences on the outcome(s)
Systems analysis attempts to take into account changes in the overall system that occur over time due to changes in one or more of the factors or influences
Feedback loops - in systems analysis, the impact of changes in one influence or factor on other influences or factors in a positive (accentuating) or negative (dampening) direction
The following summarizes the initial steps in a systems analysis:
Step 1: Identify the key influences or interventions on an outcome such as disease or the outcome of disease
Step 2: Indicate the relative strength of the impact of each of the influences or interventions
Step 3: Identify how these influences or interventions interact or work together when more than one is present—for instance, do they add together, multiply their impact or, alternatively, interfere with each other
Additional steps in systems analysis can be described as:
Step 4: Identify the dynamic changes that may occur in a system by identifying the feedback loops that occur in the system
Step 5: Identify bottlenecks that greatly limit the effectiveness of the system
Step 6: Identify leverage points that provide opportunities to greatly improve outcomes
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One Health
is about the larger global system and asserts that human health is dependent on animal health and the health of the ecosystem, focusing on the connections between human, animal, and ecosystem health
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