Scenarios of diffusion and control of an influenza pandemic in Italy

Caterina Rizzo, A. Lunelli, A. Pugliese, A. Bella, P. Manfredi, G. Scalia Tomba, M. Iannelli, M. L Ciofi Degli Atti

Research output: Contribution to journalArticlepeer-review


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.

Original languageEnglish
Pages (from-to)1650-1657
Number of pages8
JournalEpidemiology and Infection
Issue number12
Publication statusPublished - 2008

ASJC Scopus subject areas

  • Infectious Diseases
  • Epidemiology


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