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Mathematical analysis of the transmission dynamics of the liver fluke, Opisthorchis viverrini

Bürli, Christine and Harbrecht, Helmut and Odermatt, Peter and Sayasone, Somphou and Chitnis, Nakul. (2018) Mathematical analysis of the transmission dynamics of the liver fluke, Opisthorchis viverrini. Journal of Theoretical Biology, 439. pp. 181-194.

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Abstract

We develop and analyse two population-based models of the transmission dynamics of the worm parasit e Opisthorchis viverrini . The life cycle of  O. viverrini includes humans, cats and dogs as definitive hosts; and snails and fish as intermediate hosts. The first model has only one definitive host (humans) while the second model has two additional hosts: the reservoir hosts, cats and dogs. We define reproduction numbers and endemic equilibrium points for the two models. We use prevalence data for the five hosts from two islands in Lao People’s Democratic Republic to estimate distributions of parameter values. We use these distributions to compute the sensitivity index and the partial rank correlation coefficient of the basic reproduction number and the endemic equilibrium point to the parameters. We calculate distributions of the host-specific type-reproduction number to show that humans are necessary to maintain transmission and can sustain transmission without additional reservoir hosts. Therefore interventions targeting humans could be sufficient to interrupt transmission of  O. viverrini
Faculties and Departments:05 Faculty of Science > Departement Mathematik und Informatik > Mathematik > Computational Mathematics (Harbrecht)
09 Associated Institutions > Swiss Tropical and Public Health Institute (Swiss TPH) > Department of Epidemiology and Public Health (EPH)
UniBasel Contributors:Harbrecht, Helmut and Bürli, Christine and Chitnis, Nakul and Odermatt, Peter and Sayasone, Somphou
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:Elsevier
ISSN:0022-5193
e-ISSN:1095-8541
Note:Publication type according to Uni Basel Research Database: Journal article
Language:English
Identification Number:
Last Modified:28 Dec 2017 11:06
Deposited On:21 Dec 2017 15:17

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