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A multi-analysis approach for space-time and economic evaluation of risks related with livestock diseases: the example of FMD in Peru



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Martínez López, Beatriz and Ivorra, Benjamin and Fernández Carrión, Eduardo and Perez, A.M. and Medel-Herrero, A. and Sánchez-Vízcaino Buendía, Fernando and Ramos del Olmo, Ángel Manuel and Sánchez-Vizcaíno, José Manuel (2014) A multi-analysis approach for space-time and economic evaluation of risks related with livestock diseases: the example of FMD in Peru. Preventive Veterinary Medicine, 114 (1). pp. 47-63. ISSN ISSN: 0167-5877, ESSN: 1873-1716

[thumbnail of 62-Peru-preprint.pdf]

Official URL: http://www.journals.elsevier.com/preventive-veterinary-medicine/


This study presents a multi-disciplinary decision-support tool, which integrates geo-statistics, social network analysis (SNA), spatial-stochastic spread model, economic analysis and mapping/visualization capabilities for the evaluation of the sanitary and socio-economic impact of food animal diseases under diverse epidemiologic scenarios. We illustrate the applicability of this tool using foot-and-mouth disease (FMD) in Peru as an example. The approach consisted on a flexible, multistep process that may be easily adapted based on data availability. The first module (mI) uses a geo-statistical approach for the estimation (if needed) of the distribution and abundance of susceptible population (in the example here, cattle, swine, sheep, goats, and camelids) at farm-level in the region or country of interest (Peru). The second module (mII) applies SNA for evaluating the farm-to-farm contact patterns and for exploring the structure and frequency of between-farm animal movements as a proxy for potential disease introduction or spread. The third module (mIII) integrates mI-II outputs into a spatial-stochastic model that simulates within- and between-farm FMD-transmission. The economic module (mIV), connects outputs from mI-III to provide an estimate of associated direct and indirect costs. A visualization module (mV) is also implemented to graph and map the outputs of module I-IV. After 1000 simulated epidemics, the mean (95% probability interval) number of outbreaks, infected animals, epidemic duration, and direct costs were 73 (1–1164), 2,152 (1–13,250), 63 days (0–442), and US$1.2 million (1,072–9.5 million), respectively. Spread of disease was primarily local (<4.5 km), but geolocation and type of index farm strongly influenced the extent and spatial patterns of an epidemic. The approach is intended to support decisions in the last phase of the FMD eradication program in Peru, in particular to inform and support the implementation of risk-based surveillance and livestock insurance systems that may help to prevent and control potential FMD virus incursions into Peru.

Item Type:Article
Uncontrolled Keywords:Multi-analysis approach; Decision-support tool; Modeling; Social network analysis; Economic analysis; Foot-and-mouth disease; Peru
Subjects:Sciences > Mathematics
Medical sciences > Veterinary
ID Code:25529
Deposited On:18 Jun 2014 12:10
Last Modified:05 May 2021 07:32

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