Research Topics
 D ClancySummaryAffiliation: University of Liverpool Country: UK Publications
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Publications
 The effect of population heterogeneities upon spread of infectionDamian Clancy
Department of Mathematical Sciences, University of Liverpool, Liverpool, L69 7ZL, UK
J Math Biol 67:96387. 2013..All of our results are derived under the assumption that the susceptible population is sufficiently large. ..  The effect of waning immunity on longterm behaviour of stochastic models for the spread of infectionDamian Clancy
Department of Mathematical Sciences, University of Liverpool, Liverpool, UK
J Math Biol 61:52744. 2010..Our main findings are that a shorter average immune period leads to higher infection prevalence in quasistationarity, and to longer persistence of infection in the population...  Optimal intervention for an epidemic model under parameter uncertaintyDamian Clancy
Department of Mathematical Sciences, University of Liverpool, Liverpool, L69 7ZL, UK
Math Biosci 205:297314. 2007..We consider policies allowing for (i) the isolation of any number of infectives, or (ii) the immunisation of all susceptibles (total immunisation). Numerical examples are given to illustrate our results...  Optimal intervention for epidemic models with general infection and removal rate functionsD Clancy
Department of Mathematical Sciences, University of Liverpool, Liverpool, L69 3BX, UK
J Math Biol 39:30931. 1999..More general costs are briefly discussed, and some numerical examples given. Finally, we discuss possible directions for further work...  A stochastic model for disease transmission in a managed herd, motivated by Neospora caninum amongst dairy cattleD Clancy
Department of Mathematical Sciences, University of Liverpool, L69 7ZL, UK
Math Biosci 170:11332. 2001..The effect of both 'typical herd size' and 'the amount of permitted variation in herd size' upon disease prevalence in equilibrium are considered using both the exact equilibrium distribution of the process and our approximations...  Mathematical models of Neospora caninum infection in dairy cattle: transmission and options for controlN P French
Department of Clinical Veterinary Science, University of Liverpool, Neston, South Wirral, UK
Int J Parasitol 29:1691704. 1999..If the level of withinherd transmission was above a critical threshold, then a combination of reducing withinherd, and blocking external sources of transmission was required to permanently eliminate infection...  A semistochastic model for Salmonella infection in a multigroup herdY Xiao
Department of Mathematical Sciences, The University of Liverpool, M and O Building, Peach Street, Liverpool L69 7ZL, UK
Math Biosci 200:21433. 2006..Moreover, some control strategies are suggested by investigating the effect of epidemiological parameters on the probability of an epidemic...  Understanding the dynamics of Salmonella infections in dairy herds: a modelling approachYanni Xiao
Department of Mathematical Sciences, The University of Liverpool, M and O Building, Peach Street, Liverpool L69 7ZL, UK
J Theor Biol 233:15975. 2005....  Pair approximations and the inclusion of indirect transmission: theory and application to between farm transmission of SalmonellaYanni Xiao
Department of Mathematical Sciences, The University of Liverpool, M and O Building, Peach Street, Liverpool L69 7ZL, UK
J Theor Biol 244:53240. 2007..A possible control strategy is consequently suggested. Furthermore, the effect of network structure on longterm dynamics is examined...  Quantifying exposure to verocytotoxigenic Escherichia coli O157 in milk sold as pasteurized: a modelbased approachHelen E Clough
National Centre for Zoonosis Research, University of Liverpool, Leahurst, Neston, South Wirral CH647TE, United Kingdom
Int J Food Microbiol 131:95105. 2009..We conclude that milk processed on farm poses the comparatively greater risk, although that risk is still small...  Infection in social networks: using network analysis to identify highrisk individualsR M Christley
Epidemiology Group, Faculty of Veterinary Science, University of Liverpool, Liverpool, United Kingdom
Am J Epidemiol 162:102431. 2005..Identification of more central individuals in populations may be used to inform surveillance and infection control strategies...  Bayesian methods for estimating pathogen prevalence within groups of animals from faecalpat samplingH E Clough
Department of Veterinary Clinical Sciences, University of Liverpool, Leahurst, Neston, CH64 7TE, South Wirral, UK
Prev Vet Med 58:14569. 2003..We also investigated the determination of the sample size necessary for determining animallevel prevalence from pat samples to within a prespecified degree of accuracy...  Dynamics of infection with multiple transmission mechanisms in unmanaged/managed animal populationsYanni Xiao
Department of Mathematical Sciences, The University of Liverpool, M and O Building, Peach Street, Liverpool L69 7ZL, UK
Theor Popul Biol 71:40823. 2007..We conclude that strengthening any route of transmission may or may not reduce the expected time to fade out of infection, depending on the population dynamics...