By Evan London, Trisha Mendoza, Tooba Latif, Nelda A. Rivera
“After 20 years of research, a light of hope appears in the story of CWD: the genetic variation in the prion protein gene (PRNP).”

Figure 2: Inherited via DNA information from parents, each deer is born with one of the two possible prion protein variants sharing the same function. Those protein variants can be A, C, or F. (Illustration by Trisha Mendoza, Wildlife Veterinary Epidemiology Laboratory – INHS).
For more details about the recent study published by London et al., 2026, in the journal Veterinary Research, visit the Illinois Outdoor Journal [Here].
The study: London, E.W., Roca, A.L., Ishida, Y., Latif, T., Novakofski, J.E. and Mateus-Pinilla, N.E., 2026. Odocoileus virginianus PRNP sequencing reveals AF (Q95G96/H95G96) advantage over AC (Q95G96/Q95S96) against chronic wasting disease. Veterinary Research, 57(1), p.84. [PDF]












