Risk factors and surveillance for bovine spongiform encephalopathy in the United States.
Bleem
A M
AM
Center for Epidemiology, USDA, Fort Collins, CO 80521.
Crom
R L
RL
Francy
D B
DB
Hueston
W D
WD
Kopral
C
C
Walker
K
K
D000821:Animal Feed; D000818:Animals; D000836:Animals, Zoo; D001921:Brain / Q000382:microbiology / Q000473:pathology; D002417:Cattle; D004196:Disease Outbreaks / Q000662:veterinary; D016643:Encephalopathy, Bovine Spongiform / Q000453:epidemiology* / Q000209:etiology / Q000517:prevention & control; D005260:Female; D005506:Food Contamination; D015994:Incidence; D008297:Male; D012307:Risk Factors; D012608:Scrapie / Q000453:epidemiology / Q000517:prevention & control; D012756:Sheep; D006113:United Kingdom / Q000453:epidemiology; D014481:United States / Q000453:epidemiology