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Table 2 Percentage of sheep with selected clinical signs grouped by genotype

From: Codon 141 polymorphisms of the ovine prion protein gene affect the phenotype of classical scrapie transmitted from goats to sheep

PRNP genotype codon 136 and 141 N Positive scratch test Alopecia Bruxism Tremor Ataxia Limb weakness Absent menace response
VV LL 6 100% 17% 50% 100% 67% 0% 17%
AA LL 6 83% 50% 83% 33% 100% 17% 0%
AA LF 7 0% 0% 0% 29% 100% 86% 14%
AA FF 3 0% 0% 33% 33% 67% 100% 33%