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Table II.

Probability of detection of PrPd in the brain in relation to the spread of infection in LRS tissues.

Brain result Positive LRS tissues out of nine examined
0–3 4–6 7–9
Positive/tested 9*/26 7/15 22/31
% 34.6 46.7 71.0
Significance** A AB B

The nine CNS positive cases associated with low PrPd in LRS tissues include the four cases without any PrPd in LRS.


Percentage values with no letter in common are significantly different (p < 0.05) in the Fisher’s exact test.