| http://www.w3.org/ns/prov#value | - Several studies have shown that the presence of other animals on the farm (pigs, cattle, sheep, or fowl other than broilers) [20], (cattle) [21], (pigs, cattle, sheep and goats, or horses) [22], (laying hens, sheep, cattle, donkeys) [23] was associated with an increased risk of Campylobacter, although one recent Canadian study did not find such an association (cattle, sheep, goats, horses and/or p
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