title: Bovine spongiform encephalopathy: recent observations on the age-specific incidences.
authors.affiliation: Epidemiology Department, Central Veterinary Laboratory, New Haw, Weybridge, Surrey.
authors.forename: J W
authors.initials: JW
authors.lastname: Wilesmith
authors.forename: J B
authors.initials: JB
authors.lastname: Ryan
mesh_terms: D000367:Age Factors; D000821:Animal Feed / Q000009:adverse effects*; D000818:Animals; D002417:Cattle; D016643:Encephalopathy, Bovine Spongiform / Q000453:epidemiology* / Q000209:etiology / Q000517:prevention & control; D015994:Incidence; D012621:Seasons; D006113:United Kingdom / Q000453:epidemiology