Scenarios of diffusion and control of an influenza pandemic in Italy

To predict the spread of a pandemic strain of influenza virus in Italy and the impact of control measures, we developed a susceptible-exposed, but not yet infectious-infectious-recovered, and no longer susceptible (SEIR) deterministic model with a stochastic simulation component. We modelled the imp...

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Bibliographic Details
Published in:Epidemiology and Infection
Main Authors: Rizzo C., Lunelli A., Pugliese A., Bella A., Scalia Tomba G., Iannelli M., Ciofi Degli Atti M. L., MANFREDI, PIETRO ANGELO MANFREDO FRANCESCO
Other Authors: Rizzo, C., Lunelli, A., Pugliese, A., Bella, A., Manfredi, PIETRO ANGELO MANFREDO FRANCESCO, Scalia Tomba, G., Iannelli, M., Ciofi Degli Atti, M. L.
Format: Article in Journal/Newspaper
Language:English
Published: 2008
Subjects:
avian flu containment and mitigation
mathematical model
age and spatial heterogeneity
Avian flu
Online Access:http://hdl.handle.net/11568/121560
https://doi.org/10.1017/S095026880800037X
Description
Summary:To predict the spread of a pandemic strain of influenza virus in Italy and the impact of control measures, we developed a susceptible-exposed, but not yet infectious-infectious-recovered, and no longer susceptible (SEIR) deterministic model with a stochastic simulation component. We modelled the impact of control measures such as vaccination, antiviral prophylaxis and social distancing measures. In the absence of control measures, the epidemic peak would be reached about 4 months after the importation of the first cases in Italy, and the epidemic would last about 7 months. When combined, the control measures would reduce the cumulative attack rate to about 4.2%, at best, although this would require an extremely high number of treated individuals. In accordance with international findings, our results highlight the need to respond to a pandemic with a combination of control measures.

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