An SIR epidemic model on a population with random network and household structure and several types of individuals

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Ball, Frank G. and Sirl, David J. (2010) An SIR epidemic model on a population with random network and household structure and several types of individuals. Advances in Applied Probability . ISSN 0001-8678 (Submitted)

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Official URL: http://www.appliedprobability.org/content.aspx?Group=journals&Page=apjournals

Abstract

We consider a stochastic SIR (susceptible → infective → removed) epidemic model with several types of individuals. Infectious individuals can make infectious contacts on two levels, within their own ‘household’ and with their neighbours in a random graph representing additional social contacts. This random graph is an extension of the well-known configuration model to allow for several types of individuals. We give a strong approximation theorem which leads to a threshold theorem for the epidemic model and a method for calculating the probability of a major outbreak given few initial infectives. A multitype analogue of a theorem of Ball et al. (2009) heuristically

motivates a method for calculating the expected size of such a major outbreak. We also consider vaccination and give some short numerical illustrations of our results.

Item Type:	Article
RIS ID:	https://nottingham-repository.worktribe.com/output/1012360
Schools/Departments:	University of Nottingham, UK > Faculty of Science > School of Mathematical Sciences
Depositing User:	Ball, Prof Frank Granville
Date Deposited:	11 Jan 2011 19:09
Last Modified:	04 May 2020 20:25
URI:	https://eprints.nottingham.ac.uk/id/eprint/1393

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