EcoHealth

, Volume 8, Issue 2, pp 143–153

Evidence of Spread of the Emerging Infectious Disease, Finch Trichomonosis, by Migrating birds

  • Becki Lawson
  • Robert A. Robinson
  • Aleksija Neimanis
  • Kjell Handeland
  • Marja Isomursu
  • Erik O. Agren
  • Inger S. Hamnes
  • Kevin M. Tyler
  • Julian Chantrey
  • Laura A. Hughes
  • Tom W. Pennycott
  • Vic R. Simpson
  • Shinto K. John
  • Kirsi M. Peck
  • Mike P. Toms
  • Malcolm Bennett
  • James K. Kirkwood
  • Andrew A. Cunningham
Original Contribution

DOI: 10.1007/s10393-011-0696-8

Cite this article as:
Lawson, B., Robinson, R.A., Neimanis, A. et al. EcoHealth (2011) 8: 143. doi:10.1007/s10393-011-0696-8

Abstract

Finch trichomonosis emerged in Great Britain in 2005 and led to epidemic mortality and a significant population decline of greenfinches, Carduelis chloris and chaffinches, Fringilla coelebs, in the central and western counties of England and Wales in the autumn of 2006. In this article, we show continued epidemic spread of the disease with a pronounced shift in geographical distribution towards eastern England in 2007. This was followed by international spread to southern Fennoscandia where cases were confirmed at multiple sites in the summer of 2008. Sequence data of the ITS1/5.8S/ITS2 ribosomal region and part of the small subunit (SSU) rRNA gene showed no variation between the British and Fennoscandian parasite strains of Trichomonas gallinae. Epidemiological and historical ring return data support bird migration as a plausible mechanism for the observed pattern of disease spread, and suggest the chaffinch as the most likely primary vector. This finding is novel since, although intuitive, confirmed disease spread by migratory birds is very rare and, when it has been recognised, this has generally been for diseases caused by viral pathogens. We believe this to be the first documented case of the spread of a protozoal emerging infectious disease by migrating birds.

Keywords

trichomonosisTrichomonas gallinaeCarduelis chlorisFringilla coelebsmigrationemerging infectious disease

Copyright information

© International Association for Ecology and Health 2011

Authors and Affiliations

  • Becki Lawson
    • 1
    • 2
  • Robert A. Robinson
    • 3
  • Aleksija Neimanis
    • 4
  • Kjell Handeland
    • 5
  • Marja Isomursu
    • 6
  • Erik O. Agren
    • 4
  • Inger S. Hamnes
    • 5
  • Kevin M. Tyler
    • 7
  • Julian Chantrey
    • 2
  • Laura A. Hughes
    • 2
  • Tom W. Pennycott
    • 8
  • Vic R. Simpson
    • 9
  • Shinto K. John
    • 1
  • Kirsi M. Peck
    • 10
  • Mike P. Toms
    • 3
  • Malcolm Bennett
    • 2
  • James K. Kirkwood
    • 11
  • Andrew A. Cunningham
    • 1
  1. 1.Institute of Zoology, Zoological Society of LondonLondonUK
  2. 2.University of LiverpoolSouth WirralUK
  3. 3.British Trust for OrnithologyThetford, NorfolkUK
  4. 4.Department of Pathology and Wildlife DiseasesNational Veterinary InstituteUppsalaSweden
  5. 5.Norwegian Veterinary InstituteOsloNorway
  6. 6.Finnish Food Safety Authority Evira, Production Animal and Wildlife Health Research UnitOuluFinland
  7. 7.Biomedical Research Centre, Norwich Medical SchoolUniversity of East AngliaNorwichUK
  8. 8.Disease Surveillance CentreScottish Agricultural CollegeAyrUK
  9. 9.Wildlife Veterinary Investigation CentreTruroUK
  10. 10.Royal Society for the Protection of BirdsSandy, BedfordshireUK
  11. 11.Universities Federation for Animal Welfare, The Old SchoolWheathampstead, HertfordshireUK