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Table 4 Prevalence of scrapie (in %) based on tonsil biopsy* collected at yearly samplings of live animals

From: Breeding with resistant rams leads to rapid control of classical scrapie in affected sheep flocks

Year Flock
  A B C D E F
2000 0.8 (1/121) 1.9 (2/108) 7.3 (8/109) 10.4 (5/48) 2.7 (4/149) 6.9 (2/30)
2001 0.0 (0/107) 1.9 (2/105) 6.4 (7/109) 7.3 (3/41) 2.5 (4/159) 0.0 (0/37)
2002 0.0 (0/115) 0.9 (1/108) 8.9 (9/101) 3.2 (1/31) 0.6 (1/154) 0.0 (0/46)
2003 0.0 (0/107) 1.0 (1/105) 4.7 (5/107) 0.0 (0/29) 0.6 (1/155) 5.0 (1/20)
2004 0.0 (0/102) 0.0 (0/109) 0.0 (0/123) 0.0 (0/38) 0.0 (0/175) 5.3 (1/19)
2005 n.d.** 0.0 (0/115) 0.0 (0/144) 0.0 (0/47) 0.0 (0/205) n.d.
2006 n.d. 0.0 (0/110) 0.0 (0/155) 0.0 (0/23) 0.0 (0/234) n.d.
  1. Between brackets: # positive samples/# tested ewes