title: Prevalence of Mycobacterium paratuberculosis in ileocecal lymph nodes of cattle culled in the United States.
abstract: During 1983 and 1984, ileocecal lymph node specimens were obtained from clinically normal cattle at 76 US Department of Agriculture-inspected cull cattle slaughterhouses in 32 states and Puerto Rico. Mycobacterium paratuberculosis was isolated from the lymph nodes of 119 of 7,540 cattle. The prevalence of bovine paratuberculosis was 1.6% overall, with 2.9% in dairy culls and 0.8% in beef culls. The prevalence for females and males did not appear to differ significantly.
mesh_terms: D000818:Animals; D002417:Cattle; D002418:Cattle Diseases / Q000453:epidemiology*; D002432:Cecum; D005260:Female; D007082:Ileum; D008198:Lymph Nodes / Q000382:microbiology*; D008297:Male; D009161:Mycobacterium / Q000302:isolation & purification*; D010283:Paratuberculosis / Q000453:epidemiology* / Q000382:microbiology; D011647:Puerto Rico; D012737:Sex Factors; D014481:United States