Inferring bovine tuberculosis transmission between cattle and badgers via the environment and risk mapping

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Název: Inferring bovine tuberculosis transmission between cattle and badgers via the environment and risk mapping
Autoři: Chang, You, Hartemink, Nienke, Byrne, Andrew W., Gormley, Eamonn, McGrath, Guy, Tratalos, Jamie A., Breslin, Philip, More, Simon J., de Jong, Mart C.M.
Zdroj: Frontiers in Veterinary Science 10 (2023) ; ISSN: 2297-1769
Rok vydání: 2023
Témata: R map, bovine tuberculosis, domestic wildlife interface, environmental transmission, next-generation matrix method, envir, geo
Popis: Bovine tuberculosis (bTB), caused by Mycobacterium bovis, is one of the most challenging and persistent health issues in many countries worldwide. In several countries, bTB control is complicated due to the presence of wildlife reservoirs of infection, i.e. European badger (Meles meles) in Ireland and the UK, which can transmit infection to cattle. However, a quantitative understanding of the role of cattle and badgers in bTB transmission is elusive, especially where there is spatial variation in relative density between badgers and cattle. Moreover, as these two species have infrequent direct contact, environmental transmission is likely to play a role, but the quantitative importance of the environment has not been assessed. Therefore, the objective of this study is to better understand bTB transmission between cattle and badgers via the environment in a spatially explicit context and to identify high-risk areas. We developed an environmental transmission model that incorporates both within-herd/territory transmission and between-species transmission, with the latter facilitated by badger territories overlapping with herd areas. Model parameters such as transmission rate parameters and the decay rate parameter of M. bovis were estimated by maximum likelihood estimation using infection data from badgers and cattle collected during a 4-year badger vaccination trial. Our estimation showed that the environment can play an important role in the transmission of bTB, with a half-life of M. bovis in the environment of around 177 days. Based on the estimated transmission rate parameters, we calculate the basic reproduction ratio (R) within a herd, which reveals how relative badger density dictates transmission. In addition, we simulated transmission in each small local area to generate a first between-herd R map that identifies high-risk areas.
Druh dokumentu: article in journal/newspaper
Jazyk: English
Relation: https://research.wur.nl/en/publications/inferring-bovine-tuberculosis-transmission-between-cattle-and-bad-2
Dostupnost: https://research.wur.nl/en/publications/inferring-bovine-tuberculosis-transmission-between-cattle-and-bad-2
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Přístupové číslo: edsbas.C480DF17
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Items – Name: Title
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  Data: Inferring bovine tuberculosis transmission between cattle and badgers via the environment and risk mapping
– Name: Author
  Label: Authors
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  Data: <searchLink fieldCode="AR" term="%22Chang%2C+You%22">Chang, You</searchLink><br /><searchLink fieldCode="AR" term="%22Hartemink%2C+Nienke%22">Hartemink, Nienke</searchLink><br /><searchLink fieldCode="AR" term="%22Byrne%2C+Andrew+W%2E%22">Byrne, Andrew W.</searchLink><br /><searchLink fieldCode="AR" term="%22Gormley%2C+Eamonn%22">Gormley, Eamonn</searchLink><br /><searchLink fieldCode="AR" term="%22McGrath%2C+Guy%22">McGrath, Guy</searchLink><br /><searchLink fieldCode="AR" term="%22Tratalos%2C+Jamie+A%2E%22">Tratalos, Jamie A.</searchLink><br /><searchLink fieldCode="AR" term="%22Breslin%2C+Philip%22">Breslin, Philip</searchLink><br /><searchLink fieldCode="AR" term="%22More%2C+Simon+J%2E%22">More, Simon J.</searchLink><br /><searchLink fieldCode="AR" term="%22de+Jong%2C+Mart+C%2EM%2E%22">de Jong, Mart C.M.</searchLink>
– Name: TitleSource
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  Data: Frontiers in Veterinary Science 10 (2023) ; ISSN: 2297-1769
– Name: DatePubCY
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  Data: 2023
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  Data: <searchLink fieldCode="DE" term="%22R+map%22">R map</searchLink><br /><searchLink fieldCode="DE" term="%22bovine+tuberculosis%22">bovine tuberculosis</searchLink><br /><searchLink fieldCode="DE" term="%22domestic+wildlife+interface%22">domestic wildlife interface</searchLink><br /><searchLink fieldCode="DE" term="%22environmental+transmission%22">environmental transmission</searchLink><br /><searchLink fieldCode="DE" term="%22next-generation+matrix+method%22">next-generation matrix method</searchLink><br /><searchLink fieldCode="DE" term="%22envir%22">envir</searchLink><br /><searchLink fieldCode="DE" term="%22geo%22">geo</searchLink>
– Name: Abstract
  Label: Description
  Group: Ab
  Data: Bovine tuberculosis (bTB), caused by Mycobacterium bovis, is one of the most challenging and persistent health issues in many countries worldwide. In several countries, bTB control is complicated due to the presence of wildlife reservoirs of infection, i.e. European badger (Meles meles) in Ireland and the UK, which can transmit infection to cattle. However, a quantitative understanding of the role of cattle and badgers in bTB transmission is elusive, especially where there is spatial variation in relative density between badgers and cattle. Moreover, as these two species have infrequent direct contact, environmental transmission is likely to play a role, but the quantitative importance of the environment has not been assessed. Therefore, the objective of this study is to better understand bTB transmission between cattle and badgers via the environment in a spatially explicit context and to identify high-risk areas. We developed an environmental transmission model that incorporates both within-herd/territory transmission and between-species transmission, with the latter facilitated by badger territories overlapping with herd areas. Model parameters such as transmission rate parameters and the decay rate parameter of M. bovis were estimated by maximum likelihood estimation using infection data from badgers and cattle collected during a 4-year badger vaccination trial. Our estimation showed that the environment can play an important role in the transmission of bTB, with a half-life of M. bovis in the environment of around 177 days. Based on the estimated transmission rate parameters, we calculate the basic reproduction ratio (R) within a herd, which reveals how relative badger density dictates transmission. In addition, we simulated transmission in each small local area to generate a first between-herd R map that identifies high-risk areas.
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  Data: https://research.wur.nl/en/publications/inferring-bovine-tuberculosis-transmission-between-cattle-and-bad-2
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  Data: https://research.wur.nl/en/publications/inferring-bovine-tuberculosis-transmission-between-cattle-and-bad-2
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  Data: edsbas.C480DF17
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    Languages:
      – Text: English
    Subjects:
      – SubjectFull: R map
        Type: general
      – SubjectFull: bovine tuberculosis
        Type: general
      – SubjectFull: domestic wildlife interface
        Type: general
      – SubjectFull: environmental transmission
        Type: general
      – SubjectFull: next-generation matrix method
        Type: general
      – SubjectFull: envir
        Type: general
      – SubjectFull: geo
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      – TitleFull: Inferring bovine tuberculosis transmission between cattle and badgers via the environment and risk mapping
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