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England
Wales
Cattle
Escherichia coli O157
Sheep
Cattle Diseases
Escherichia coli Infections
Animal Salmonella Infections
Zoonoses
Cryptosporidiosis
Prevalence
Risk Factors
Seasons
Disease Reservoirs
Longitudinal Studies
Feces
Dairying
Shiga Toxins
Bacteriophage Typing
Abattoirs
Co-Publications
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