Volume 8, Number 3—March 2002
Research
Associations between Indicators of Livestock Farming Intensity and Incidence of Human Shiga Toxin-Producing Escherichia Coli Infection
James E. Valcour, Pascal Michel†, Scott A. McEwen, and Jeffrey B. Wilson‡
Table 1
Dimensions and components used in creating livestock density indicators to predict incidence of human shiga toxin-producing Escherichia coli infection, Ontario
| Dimension | Component |
|---|---|
| Animal | Total no. of cattle in CCSa |
| Total no. of dairy cattle in CCS | |
| Total no. of beef cattle in CCS | |
| Total no. of chickens in CCS | |
| Total no. of pigs in CCS | |
| Manure | Area of CCS having manure applied via solid spreader |
| Area of CCS having manure applied via irrigation system | |
| Area of CCS having manure applied to soil surface via liquid spreader | |
| Area of CCS having manure injected into soil via liquid spreader | |
| Land use | Total CCS area |
| Absolute or % area of farm land in CCS | |
| Absolute or % area of pasture land in CCS | |
| Absolute or % area of crop land in CCS | |
| Human population | Total human population in CCS |
aCCS = consolidated census subdivision. Area of CCS is in square kilometers; absolute = absolute squar
kilometers.
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