A case-control study investigating risk factors for Johne's disease (paratuberculosis) in dairy herds would be most appropriate for which epidemiological scenario?
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A
A common disease with rapid onset being studied prospectively
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B
A rare disease or one with a long incubation period where cohort studies are impractical
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C
Estimating the absolute risk of disease in an exposed population
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D
Confirming causality between a pathogen and disease in a new outbreak