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Network Epidemics and Early Stage Vaccination: The Effects of Infectious and Vaccination Delay Periods and Their Randomness

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dc.creator Shaban, Nyimvua
dc.creator Andersson, Mikael
dc.creator Svensson, Åke
dc.creator Britton, Tom
dc.date 2016-09-21T12:16:34Z
dc.date 2016-09-21T12:16:34Z
dc.date 2011
dc.date.accessioned 2018-03-27T08:58:20Z
dc.date.available 2018-03-27T08:58:20Z
dc.identifier Shaban, N., Andersson, M., Svensson, Å. and Britton, T., 2011. Network epidemics and early stage vaccination: the effects of infectious and vaccination delay periods and their randomness. Pioneer Journal of Mathematics and Mathematical Sciences, 3(1), pp.55-72.
dc.identifier 1650-0377
dc.identifier http://hdl.handle.net/20.500.11810/3801
dc.identifier.uri http://hdl.handle.net/20.500.11810/3801
dc.description It is known that the distributions of the latent and infectious periods affect the dynamics of the spread of an infectious disease. Here we consider the SEIR epidemic model describing the spread of an infectious disease giving life-long immunity in a community whose social structure can be represented by a simple random graph having a pre-specified degree distribution. Two real time vaccination strategies, based on tracing and vaccinating the friends of infectious individuals during the early stages of an epidemic, are proposed. The first strategy considers vaccination of each friend of a detected infectious individual independently with probability ρ. The second strategy sets an upper bound on the number of friends an individual can infect before being detected. We derive both the basic reproduction number and the strategy-specific reproduction numbers and show that these reproduction numbers decrease when the variances of the infectious period and the time to detection increase. Under the assumption that detection may only occur after the latent period, the reproduction numbers are independent of the distribution of the latent period.
dc.language en
dc.subject Branching approximation
dc.subject Coefficient of variation
dc.subject Degree distribution
dc.subject Epidemic models
dc.subject Social networks
dc.subject Vaccination strategies
dc.title Network Epidemics and Early Stage Vaccination: The Effects of Infectious and Vaccination Delay Periods and Their Randomness
dc.type Journal Article, Peer Reviewed


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