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Predicting spread and effective control measures for African swine fever-Should we blame the boars
RA. Taylor, T. Podgórski, RRL. Simons, S. Ip, P. Gale, LA. Kelly, EL. Snary
Language English Country Germany
Document type Journal Article
Grant support
643476
Horizon 2020 Framework Programme
2014/15/B/NZ9/01933
Narodowe Centrum Nauki
PubMed
32564507
DOI
10.1111/tbed.13690
Knihovny.cz E-resources
- MeSH
- African Swine Fever epidemiology prevention & control transmission MeSH
- Behavior, Animal MeSH
- Animals, Wild * MeSH
- Disease Outbreaks veterinary MeSH
- Swine MeSH
- Probability MeSH
- Sus scrofa * MeSH
- African Swine Fever Virus MeSH
- Animals MeSH
- Check Tag
- Animals MeSH
- Publication type
- Journal Article MeSH
- Geographicals
- Asia MeSH
- Europe MeSH
An ongoing, continually spreading, outbreak of African swine fever (ASF), following its identification in Georgia in 2007, has resulted in 17 European and 12 Asian countries reporting cases by April 2020, with cases occurring in both wild boar and domestic pigs. Curtailing further spread of ASF requires understanding of the transmission pathways of the disease. ASF is self-sustaining in the wild boar population, and they have been implicated as one of the main drivers of transmission within Europe. We developed a spatially explicit model to estimate the risk of infection with ASF in wild boar and pigs due to natural movement of wild boar that is applicable across the whole of Europe. We demonstrate the model by using it to predict the probability that early cases of ASF in Poland were caused by wild boar dispersion. The risk of infection in 2015 is computed due to wild boar cases in Poland in 2014, compared against reported cases in 2015, and then the procedure is repeated for 2015-2016. We find that long- and medium-distance spread of ASF (i.e. >30 km) is unlikely to have occurred due to wild boar dispersal, due in part to the generally short distances wild boar will travel (<20 km on average). We also predict the relative success of different control strategies in 2015, if they were implemented in 2014. Results suggest that hunting of wild boar reduces the number of new cases, but a larger region is at risk of ASF compared with no control measure. Alternatively, introducing wild boar-proof fencing reduces the size of the region at risk in 2015, but not the total number of cases. Overall, our model suggests wild boar movement is only responsible for local transmission of disease; thus, other pathways are more dominant in medium- and long-distance spread of the disease.
Department of Applied Mathematics and Theoretical Physics University of Cambridge Cambridge UK
Department of Epidemiological Sciences Animal and Plant Health Agency Addlestone UK
Department of Mathematics and Statistics University of Strathclyde Glasgow UK
Mammal Research Institute Polish Academy of Sciences Białowieża Poland
References provided by Crossref.org
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