CWD Testing There is mention in this article of positive yearling deer…
CWD Testing On a Deer Farm From this scientific journal comes a lot of jargon that most of us laypeople will not understand, therefore, I only took an excerpt from it.
Sixty animals (79%) were positive by IHC staining of at least one tissue. Of the PrPCWD-positive animals, 58 of 60 (96.7%) had PrPCWD in RLN, 49 of 56 (87.5%) had detectable PrPCWD staining in the obex, and 48 of 58 (82.7%) had detectable PrPCWD in RAMALT (Table 1); 48 (85.7%) had deposits of PrPCWD in the obex and lymphoid tissues, 7 (12.5%) had deposits only in lymphoid tissue, and 1 (1.8%) had deposits only in brainstem. To the authors’ knowledge, this is the first report of a white-tailed deer with PrPCWD deposits limited to the brainstem, although the pattern is relatively high (14%) in Rocky Mountain elk.19 Interestingly, this animal was a fawn of wt/wt genotype, and the PrPCWD staining was minimal, with very small amounts of stain around 2 neurons. Thirty-two of the 37 adult animals (86.5%), 12 of 16 yearlings (75.0%), and 15 of 22 fawns aged 6 to 9 months (68.2%) were positive. There did not appear to be a difference in the distribution of CWD antigen in tissues among the various age groups. Infection rates between males (23/29, 79.3%) and females (37/47, 78.7%) were not significantly different. Highest rates of PrPCWD were found in the RLN and tonsil tissues (Table 1), a finding that is consistent with earlier reports in mule deer,5,22–24 white-tailed deer,11 and Rocky Mountain elk.19 Prion protein was detected in the retina in only 4 animals, all with marked prion accumulation in the obex, as indicated by an obex score of 4. Prion protein was primarily located in the inner and outer plexiform layers of the retina; all other regions within the eye were free of prion.
Now as best I can tell from this last paragraph is there is a chance that yearling and fawns have a chance of getting it as they were testing for a prions in the early stages of the disease…
Remember I am a layman with just enough biological knowledge to make me dangerous…
So my two cents, right or wrong, just saying…
Mark