Abstract

The national herd prevalence and spatial distribution of Neospora caninum infected dairy herds in Sweden were investigated. The study was based oil a bulk milk survey comprising samples from 2,978 herds. Test-positive herds were found in all parts of Sweden and the overall prevalence of test-positive herds was 8.3% (95% confidence interval = 7.3-9.3%). The presence of spatial autocorrelation was rested using the Moran's I test. Possible Clusters of test-positive herds were identified by applying the local indicator of spatial association (LISA) test statistic and the spatial scan statistic. Analysis based oil data aggregated by postal code areas as well as analysis based on exact coordinates identified significant clusters of high prevalence ill the middle parts of Sweden and low prevalence in the South. This was not expected considering the results from other European Studies of N. caninum in cattle. However, the findings ate supported by the distribution Of previously known case herds.

Keywords

cluster analysis; prevalence; Neospora caninum; cattle; bulk milk

Published in

Geospatial Health
2008, Volume: 3, number: 1, pages: 39-45
Publisher: UNIV NAPLES FEDERICO II

SLU Authors

• Nödtvedt, Ane

  • Department of Clinical Sciences, Swedish University of Agricultural Sciences
    

• Björkman, Camilla

  • Department of Clinical Sciences, Swedish University of Agricultural Sciences
    

UKÄ Subject classification

Clinical Science
Public Health, Global Health, Social Medicine and Epidemiology


Publication identifier

DOI: https://doi.org/10.4081/gh.2008.230

Permanent link to this page (URI)

https://res.slu.se/id/publ/77826