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Boklund A, Dhollander S, Chesnoiu Vasile T, Abrahantes JC, Bøtner A, Gogin A, Gonzalez Villeta LC, Gortázar C, More SJ, Papanikolaou A, Roberts H, Stegeman A, Ståhl K, Thulke HH, Viltrop A, Van der Stede Y, Mortensen S. Risk factors for African swine fever incursion in Romanian domestic farms during 2019. Sci Rep 2020; 10:10215. [PMID: 32576841 PMCID: PMC7311386 DOI: 10.1038/s41598-020-66381-3] [Citation(s) in RCA: 62] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Accepted: 05/18/2020] [Indexed: 01/06/2023] Open
Abstract
African swine fever (ASF) entered Georgia in 2007 and the EU in 2014. In the EU, the virus primarily spread in wild boar (Sus scrofa) in the period from 2014-2018. However, from the summer 2018, numerous domestic pig farms in Romania were affected by ASF. In contrast to the existing knowledge on ASF transmission routes, the understanding of risk factors and the importance of different transmission routes is still limited. In the period from May to September 2019, 655 Romanian pig farms were included in a matched case-control study investigating possible risk factors for ASF incursion in commercial and backyard pig farms. The results showed that close proximity to outbreaks in domestic farms was a risk factor in commercial as well as backyard farms. Furthermore, in backyard farms, herd size, wild boar abundance around the farm, number of domestic outbreaks within 2 km around farms, short distance to wild boar cases and visits of professionals working on farms were statistically significant risk factors. Additionally, growing crops around the farm, which could potentially attract wild boar, and feeding forage from ASF affected areas to the pigs were risk factors for ASF incursion in backyard farms.
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Affiliation(s)
- A Boklund
- University of Copenhagen, Faculty of Health and Medical Sciences, Section for Animal Welfare and Disease Control, Grønnegårdsvej 8, 1870, Frederiksberg C, Denmark.
| | - S Dhollander
- European Food Safety Authority, Via Carlo Magno 1A, 43126, Parma, Italy
| | - T Chesnoiu Vasile
- The National Sanitary Veterinary and Food Safety Authority, Bucharest, Piata Free Press no. 1 Body D1, District 1, Post Code 013 701, Bucharest, Romania
| | - J C Abrahantes
- European Food Safety Authority, Via Carlo Magno 1A, 43126, Parma, Italy
| | - A Bøtner
- University of Copenhagen, Faculty of Health and Medical Sciences, Section for Veterinary Clinical Microbiology, Stigbøjlen 4, 1870, Frederiksberg C, Denmark
- Statens Serum Institut, Department of Virus and Microbiological Special Diagnostics, Artillerivej 5, 2300, Copenhagen S, Denmark
| | - A Gogin
- Federal Research Center for Virology and Microbiology, 601125, Volginsky, Russia
| | | | - C Gortázar
- SaBio research group at IREC (Universidad de Castilla-La Mancha & CSIC), Ronda de Toledo 12, 13003, Ciudad Real, Spain
| | - S J More
- Centre for Veterinary Epidemiology and Risk Analysis, UCD School of Veterinary Medicine, University College Dublin, Belfield, Dublin, D04 W6F6, Ireland
| | - A Papanikolaou
- European Food Safety Authority, Via Carlo Magno 1A, 43126, Parma, Italy
| | - H Roberts
- Department for Environment Food and Rural Affairs (DEFRA), Exotic Disease Control team, Area 2D, Nobel House, 17 Smith Square, London, SW1P 3JR, England
| | - A Stegeman
- Utrecht University, Faculty of Veterinary Medicine, Yalelaan 7, Utrecht, The Netherlands
| | - K Ståhl
- National Veterinary Institute, 751 89, Uppsala, Sweden
| | - H H Thulke
- Helmholtz Centre for Environmental Research GmbH - UFZ, Department of Ecological Modelling, PG EcoEpi, Permoserstr. 15, Leipzig, Germany
| | - A Viltrop
- Estonian University of Life Sciences, Institute of Veterinary Medicine and Animal Sciences, Kreutzwaldi 62, Tartu, 51006, Estonia
| | - Y Van der Stede
- European Food Safety Authority, Via Carlo Magno 1A, 43126, Parma, Italy
| | - S Mortensen
- Danish Veterinary and Food Administration, Stationsparken 31-33, 2600, Glostrup, Denmark
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