Paratuberculosis regulations changed.
D000818:Animals; D007886:Legislation, Veterinary; D008403:Mass Screening / Q000331:legislation & jurisprudence; D010283:Paratuberculosis / Q000175:diagnosis / Q000517:prevention & control / Q000635:transmission*; D014186:Transportation / Q000331:legislation & jurisprudence*; D014481:United States; D016885:United States Department of Agriculture