The link is not 100% but two hunters eating from the same deer population and falling ill at around the same time is extremely unlikely to be a coincidence.
We are essentially one mutation away from this spreading between humans and that would be very, very bad.
Prions are the best candidate IMO for a near-to-medium-term human extinction event. If a bad one gets a foothold then median human life expectancy will be like 12 years within a century or two and there’ll be nothing to be done about it
You should probably be scareder of CWD and similar diseases TBQH IMHO PBJ