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Incorporating individual health-protective decisions into disease transmission models: a mathematical framework
David P Durham1, Elizabeth A Casman
1Department of Engineering and Public Policy, Carnegie Mellon University, Pittsburgh, PA, USA. ddurham@alumni.cmu.edu
Abstract:
It is anticipated that the next generation of computational epidemic models will simulate both infectious disease transmission and dynamic human behaviour change. Individual agents within a simulation will not only infect one another, but will also have situational awareness and a decision algorithm that enables them to modify their behaviour. This paper develops such a model of behavioural response, presenting a mathematical interpretation of a well-known psychological model of individual decision making, the health belief model, suitable for incorporation within an agent-based disease-transmission model. We formalize the health belief model and demonstrate its application in modelling the prevalence of facemask use observed over the course of the 2003 Hong Kong SARS epidemic, a well-documented example of behaviour change in response to a disease outbreak.
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