Departamento de Matemática
Universidade Federal de Pernambuco
Recife, PE CEP 50740-540 Brazil
and The Abdus Salam ICTP, Strada Costiera 11 Trieste 34100 Italy
email: castilho@dmat.ufpe.br
Cesar Castilho
Abstract:
In this work we study the best strategy for educational campaigns
during the outbreak of an epidemic. Assuming that the epidemic is
described by the simplified SIR model and that the total time of
the campaign is limited due to budget, we consider two possible
scenarios. In the first scenario we have a campaign oriented to
decrease the infection rate by stimulating susceptibles to have a
protective behavior. In the second scenario we have a campaign
oriented to increase the removal rate by stimulating the infected
to remove themselves from the infected class. The optimality is
taken to be to minimize the total number of infected by the end of
the epidemic outbreak. The technical tool used to determine the
optimal strategy is the Pontryagin Maximum Principle.
Submitted September 21, 2005. Published October 11, 2006.
Math Subject Classifications: 92D30, 93C15, 34H05.
Key Words: Epidemic; optimal control; educational campaign.
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César Castilho Departamento de Matemática Universidade Federal de Pernambuco Recife, PE CEP 50740-540 Brazil and The Abdus Salam ICTP, Strada Costiera 11 Trieste 34100 Italy email: castilho@dmat.ufpe.br |
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