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Table 2 Proportion of scrapie-infected sheep 1 in which PrP Sc was detected in abdominal hemal nodes

From: Accumulation profiles of PrPScin hemal nodes of naturally and experimentally scrapie-infected sheep

Prnp Total sheep Proportion sheep with PrPScdetected in hemal nodes Row percentage
Natural exposure Experimental exposure
Preclinical Clinical Preclinical2 Clinical
ARQ/ARQ 30 13/14 8/8 3/6 2/2 87%
ARQ/VRQ 24 3/4 3/4 13/16 0 79%
VRQ/VRQ 28 3/3 8/8 11/17 0 79%
Column percentage   90% 95% 69% 100% 82%
  1. 1PrPSc detected by IHC in both the retropharyngeal and a mesenteric lymph node of all sheep.
  2. 2The preclinical time-point for the experimental exposure of VRQ/VRQ group was at 4-10 months after transfusion of weaned lambs.