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Space-time clustering of, and risk factors for, farmer-diagnosed winter dysentery in dairy cattle

Authors
  • Maurice E. White
  • Ynte Hein Schukken
  • Beth Tanksley
Publication Date
Dec 01, 1989
Source
PMC
Keywords
Disciplines
  • Medicine
License
Unknown

Abstract

We used two statistical techniques for space-time cluster analysis, the Knox and the Mantel regression methods, for an analysis of whether herd outbreaks of farmer-diagnosed winter dysentery during the winter of 1987-1988 were clustered in space and time more than would be expected by chance. Using the Knox method, there was significant space-time clustering of outbreaks of winter dysentery within a 30 day time and a 5.5 km radius. There was also significant space-time clustering by the Mantel regression method.

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