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  1. Article: The effect of genetic susceptibility and targeting of sampling on the sensitivity of the surveillance system and certainty-of-freedom for classical scrapie in Finland in 2008–2014

    Schulman, Kitty / Tapani Lyytikäinen

    Preventive veterinary medicine. 2018 Apr. 01, v. 152

    2018  

    Abstract: We applied scenario tree modeling to study how the genetic distribution of the sheep population in Finland and the focusing on fallen stock would influence the surveillance sensitivity of scrapie. To incorporate the unevenly distributed susceptibility ... ...

    Abstract We applied scenario tree modeling to study how the genetic distribution of the sheep population in Finland and the focusing on fallen stock would influence the surveillance sensitivity of scrapie. To incorporate the unevenly distributed susceptibility into the estimation we used data from GB where the genetic distribution and scrapie occurrence have been documented in both normally slaughtered and deceased animals. Finland’s sheep population is more susceptible to scrapie than the sheep population in GB and surveillance is concentrated on fallen stock. As a result, there is high systemic sensitivity in Finland even with the moderate number of studied animals. The certainty of the freedom-of-disease status is clearly elevated by the low probability of previous disease occurrence and low probability of introduction. The results highlight the need to change the concept from surveillance system sensitivity to freedom-of-disease status and to also consider the risk of introduction and the cumulative nature of the disease prevalence information due repeated surveillance efforts.
    Keywords disease occurrence ; disease prevalence ; monitoring ; risk ; scrapie ; sheep ; Finland
    Language English
    Dates of publication 2018-0401
    Size p. 23-31.
    Publishing place Elsevier B.V.
    Document type Article
    ZDB-ID 43399-8
    ISSN 1873-1716 ; 0167-5877
    ISSN (online) 1873-1716
    ISSN 0167-5877
    DOI 10.1016/j.prevetmed.2018.02.006
    Database NAL-Catalogue (AGRICOLA)

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  2. Article: Biosecurity on Finnish cattle, pig and sheep farms – results from a questionnaire

    Sahlström, Leena / Jonna Kyyrö / Tapani Lyytikäinen / Terhi Virtanen

    Preventive veterinary medicine. 2014 Nov. 01, v. 117, no. 1

    2014  

    Abstract: Biosecurity is important in order to prevent disease transmission between animals on farms as well as from farm to farm. Personal biosecurity routines such as hand washing and the use of protective clothing and footwear are measures that should be used ... ...

    Abstract Biosecurity is important in order to prevent disease transmission between animals on farms as well as from farm to farm. Personal biosecurity routines such as hand washing and the use of protective clothing and footwear are measures that should be used at all farms. Other measures are for example related to purchasing new animals to the farm.A questionnaire-based survey was undertaken to study the frequency of use of different biosecurity measures on cattle, pig and sheep farms in Finland. Information about which biosecurity measures are in use is needed for contingency planning of emerging diseases or when combating endemic diseases. Knowledge about the level of biosecurity of a farm is also needed in order to assess if and where improvement is needed. Information regarding biosecurity levels may benefit future animal disease risk assessments.A total of 2242 farmers responded to the questionnaire resulting in a response rate of 45%. The implementation frequencies of different biosecurity measures are reported. The results revealed differences between species: large pig farms had a better biosecurity level than small cattle farms. There were also differences between production types such as dairy farming versus beef cattle farming, but these were not as remarkable. Sheep farming in Finland is sparse and the large number of hobby farmers keeps the biosecurity level low on sheep farms. This might represent a risk for the entire sheep farming industry.The Finnish farmers were satisfied with their on-farm biosecurity. Eighty percent of the farmers report that they were satisfied even though the biosecurity level was not particularly high. The implementation of biosecurity measures could be further improved. Even though the disease situation in Finland is good today, one must be prepared for possible epidemics of threatening diseases.
    Keywords beef cattle ; biosecurity ; dairy farming ; disease outbreaks ; disease transmission ; emerging diseases ; endemic diseases ; farmers ; farming systems ; hand washing ; livestock and meat industry ; planning ; protective clothing ; purchasing ; questionnaires ; risk ; sheep ; surveys ; swine ; Finland
    Language English
    Dates of publication 2014-1101
    Size p. 59-67.
    Publishing place Elsevier B.V.
    Document type Article
    ZDB-ID 43399-8
    ISSN 1873-1716 ; 0167-5877
    ISSN (online) 1873-1716
    ISSN 0167-5877
    DOI 10.1016/j.prevetmed.2014.07.004
    Database NAL-Catalogue (AGRICOLA)

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  3. Article ; Online: Cross-Validation of Generic Risk Assessment Tools for Animal Disease Incursion Based on a Case Study for African Swine Fever

    Clazien J. de Vos / Rachel A. Taylor / Robin R. L. Simons / Helen Roberts / Cecilia Hultén / Aline A. de Koeijer / Tapani Lyytikäinen / Sebastian Napp / Anette Boklund / Ronald Petie / Kaisa Sörén / Manon Swanenburg / Arianna Comin / Leena Seppä-Lassila / Maria Cabral / Emma L. Snary

    Frontiers in Veterinary Science, Vol

    2020  Volume 7

    Abstract: In recent years, several generic risk assessment (RA) tools have been developed that can be applied to assess the incursion risk of multiple infectious animal diseases allowing for a rapid response to a variety of newly emerging or re-emerging diseases. ... ...

    Abstract In recent years, several generic risk assessment (RA) tools have been developed that can be applied to assess the incursion risk of multiple infectious animal diseases allowing for a rapid response to a variety of newly emerging or re-emerging diseases. Although these tools were originally developed for different purposes, they can be used to answer similar or even identical risk questions. To explore the opportunities for cross-validation, seven generic RA tools were used to assess the incursion risk of African swine fever (ASF) to the Netherlands and Finland for the 2017 situation and for two hypothetical scenarios in which ASF cases were reported in wild boar and/or domestic pigs in Germany. The generic tools ranged from qualitative risk assessment tools to stochastic spatial risk models but were all parameterized using the same global databases for disease occurrence and trade in live animals and animal products. A comparison of absolute results was not possible, because output parameters represented different endpoints, varied from qualitative probability levels to quantitative numbers, and were expressed in different units. Therefore, relative risks across countries and scenarios were calculated for each tool, for the three pathways most in common (trade in live animals, trade in animal products, and wild boar movements) and compared. For the 2017 situation, all tools evaluated the risk to the Netherlands to be higher than Finland for the live animal trade pathway, the risk to Finland the same or higher as the Netherlands for the wild boar pathway, while the tools were inconclusive on the animal products pathway. All tools agreed that the hypothetical presence of ASF in Germany increased the risk to the Netherlands, but not to Finland. The ultimate aim of generic RA tools is to provide risk-based evidence to support risk managers in making informed decisions to mitigate the incursion risk of infectious animal diseases. The case study illustrated that conclusions on the ASF risk were similar across the ...
    Keywords African swine fever ; cross-validation ; livestock diseases ; generic model ; introduction risk ; model uncertainty ; Veterinary medicine ; SF600-1100
    Subject code 910
    Language English
    Publishing date 2020-02-01T00:00:00Z
    Publisher Frontiers Media S.A.
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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