Identification

Author

Doran RJ, Laffan SW

Title

Simulating the spatial dynamics of Foot and Mouth Disease outbreaks in feral pigs and livestock in Queensland, Australia, using a susceptible-infected-recovered cellular automata model

Year

2005

Publication type

Article

Journal

Preventive Veterinary Medicine

Created

2013-05-31 16:47:26+00:00

Modified

2016-08-09 19:28:36.812055+00:00

Details

Volume

70

Access

Language

English

URL https://people.ifm.liu.se/unwen/spread/Prev%20vet%20med%20Doran%202005.pdf
DOI

10.1016/j.prevetmed.2005.03.002

Accessed

2016-06-09

Extended information

Abstract

We describe an approach to modelling the spatio-temporal spread of foot and mouth disease through feral animal and unfenced livestock populations. We used a susceptible-infected-recovered model, implemented in a cellular automata framework, to assess the spread of FMD across two regions of Queensland, Australia. Following a sensitivity analysis on the infectious states, scenario analyses were conducted using feral pigs only as the susceptible population, and then with the addition of livestock, and initiated in the wet season and in the dry season. The results indicate that, depending on the season the outbreak is initiated, and without the implementation of control measures, an outbreak of Foot and Mouth Disease around Winton could continue unchecked, while an outbreak around Cape York may die out naturally. The approach explicitly incorporates the spatial relationships between the populations through which the disease spreads and provides a framework by which the spread of disease outbreaks can be explored through varying the model parameters. It highlights the emergence and importance of spatio-temporal patterns, something that previous modelling of FMD in feral animal and unfenced livestock populations has lacked.