Epidemiological analyses of African swine fever in the European Union (November 2017 until November 2018)

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Title: Epidemiological analyses of African swine fever in the European Union (November 2017 until November 2018)
Authors: Boklund, AnetteCay, BrigitteDepner, KlausMore, Simon Johnet al.
Permanent link: http://hdl.handle.net/10197/10776
Date: 8-Nov-2018
Online since: 2019-06-10T13:39:55Z
Abstract: This update on the African swine fever (ASF) outbreaks in the EU demonstrated that out of all tested wild boar found dead, the proportion of positive samples peaked in winter and summer. For domestic pigs only, a summer peak was evident. Despite the existence of several plausible factors that could result in the observed seasonality, there is no evidence to prove causality. Wild boar density was the most influential risk factor for the occurrence of ASF in wild boar. In the vast majority of introductions in domestic pig holdings, direct contact with infected domestic pigs or wild boar was excluded as the route of introduction. The implementation of emergency measures in the wild boar management zones following a focal ASF introduction was evaluated. As a sole control strategy, intensive hunting around the buffer area might not always be sufficient to eradicate ASF. However, the probability of eradication success is increased after adding quick and safe carcass removal. A wider buffer area leads to a higher success probability; however it implies a larger intensive hunting area and the need for more animals to be hunted. If carcass removal and intensive hunting are effectively implemented, fencing is more useful for delineating zones, rather than adding substantially to control efficacy. However, segments of fencing will be particularly useful in those areas where carcass removal or intensive hunting is difficult to implement. It was not possible to demonstrate an effect of natural barriers on ASF spread. Human-mediated translocation may override any effect of natural barriers. Recommendations for ASF control in four different epidemiological scenarios are presented.
Type of material: Journal Article
Publisher: John Wiley and Sons Ltd.
Journal: EFSA Journal
Volume: 16
Issue: 11
Copyright (published version): 2018 European Food Safety Authority
Keywords: African swine feverEpidemiologyRisk factorSeasonalityWild boarDomestic pigsManagementPrevention
DOI: 10.2903/j.efsa.2018.5494
Language: en
Status of Item: Peer reviewed
Appears in Collections:Veterinary Medicine Research Collection

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