How?
I’ve been in the ADC field for nearly 40 years and worked on a couple of large scale deer culling projects.
Out of the 3000+ samples submitted I received back 21 positive results. Only two of those were surprises to me based on observations of the deer while living or immediately upon killing them.
During the early stages there are no outward visible cues. Once the incubation period has reached a short threshold you start to be able to see ques such as dehydration, sunken eyes, erratic era movement, etc.
CWD much like anthrax has been around since the dawn of time. You’re far more likely to die from a lightning strike or e coli tainted fast food then CWD tainted wild game.
I’ve been to dozens of seminars regarding CWD. Much like global warming there’s a whole lot of the sky is falling effect going on with no real long-term data to back it up.
30 years of data on CWD and 100 or so years of data on climate change does not a scientific consensus make. Meanwhile there’s a lot of “researchers “cashing in on both