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Table 2 Number of ewes with (positive) or without (negative) detectable OPPV provirus among PRNP genotypes used for statistical comparison

From: Ovine progressive pneumonia provirus levels are unaffected by the prion 171R allele in an Idaho sheep flock

  OPPV Provirus Status % OPPV
PRNP genotype negative positive positive
171 QQ 36 64 64.0
171 QR 61 118 65.9
171 RR 35 44 55.7
143 HH 103 176 63.1
143 HR 26 45 63.4