Joe Rogan Experience #1154 - Doug Duren & Bryan Richards

CWD is caused by misfolded prion proteins that convert normal prions in the brain, leading to sponge-like damage, neurological decline, and certain death—after an incubation period of roughly two years during which animals look healthy but shed infectious material.

Disease-associated prions are highly resistant to heat, UV, and degradation, can remain infectious in soil for years to decades, and can both adhere to plant surfaces and be taken up into plant tissues, creating long-lived environmental reservoirs of infection.

Once thought confined to a small area in Colorado/Wyoming, CWD is now detected in at least 25 U.S. states, multiple Canadian provinces, South Korea, and Scandinavia; in long-established hotspots, adult male prevalence can approach ~50%, and no ecological factor (like frost with EHD) shuts down transmission.

Captive cervid farms, interstate movement of live deer and elk, improperly discarded carcasses, and possibly contaminated hay and feed all help leapfrog CWD far beyond what natural deer movements alone would achieve, making regulation and education around movement critical.

Epidemiological data have not yet shown increased human prion disease where CWD occurs, but lab models demonstrate that some CWD strains can overcome species barriers in principle; as more hunters and consumers are exposed to infected meat or environments, the odds of a rare crossover event climb.