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Salud Pública de México
versão impressa ISSN 0036-3634
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VELASCO-HERNANDEZ, Jorge X e LEITE, Maria Conceicao A. A model for the A(H1N1) epidemic in Mexico, including social isolation. Salud pública Méx [online]. 2011, vol.53, n.1, pp.40-47. ISSN 0036-3634.
OBJECTIVE: We present a model for the 2009 influenza epidemic in Mexico to describe the observed pattern of the epidemic from March through the end of August (before the onset of the expected winter epidemic) in terms of the reproduction number and social isolation measures. MATERIAL AND METHODS: The model uses a system of ordinary differential equations. Computer simulations are performed to optimize trajectories as a function of parameters. RESULTS: We report on the theoretical consequences of social isolation using published estimates of the basic reproduction number. The comparison with actual data provides a reasonable good fit. CONCLUSIONS: The pattern of the epidemic outbreak in Mexico is characterized by two peaks resulting from the application of very drastic social isolation measures and other prophylactic measures that lasted for about two weeks. Our model is capable of reproducing the observed pattern.
Palavras-chave : H1N1; simulation; flu; basic reproduction number; influenza; Mexico.