This never happens when prions are the topic.
There's no evidence that any significant human population has ever been wiped out by prions at any point in the history of the species. Heck, we haven't even observed widespread (>10% infected) prion disease in any species.
At least with something like climate change, there's the fact that post-industrial activity is doing something different than pre-industrial history. But this reasoning doesn't hold for prion cataclysm. It's more like asteroid apocalypse. Yes it could happen, but statistically it's not something we have to worry about on a civilizational timeframe.
I don't see any justification for why humanity in 2021 is courting prion disaster to a greater degree than it was in 2000 BC. Animal husbandry has existed for fifteen thousand years. Maybe globalization would spread a prion outbreak faster. But the point is we've never even observed localized prion collapse. If prions were that dangerous, there should already be regional areas that have transformed into total no-go zones.
Prion contamination can now be shipped around the world in about 24 hours, where it can enter new populations much more easily.
This is the part that worries me. If something happened like this even 300-400 years ago, it would probably just wipe out that village.
This is probably exactly what happened with CWD - deer overpopulation plus the random protein misfold created the conditions for a contagious disease where it didn't exist before.
We only noticed it on our farm animals because we brought the cycle time down as we fed downer cows to other cows as a source of protein
While the kinds of people who would fly planes into buildings, release nerve toxins in subway stations or club entire villages of outsiders to death have always existed the ability to research and manufacture prions did not exist in 2000BC.
That combination of desire to destroy the world and the legitimate ability to do it with rapidly more accessible biotechnology is a disconcerting reality that we need to account for when discussing theses things.
Imagine a religious extremists organization mass producing prions and placing them in key parts of food supply chain. We probably wouldn't have a clue until it was too late.
With that said I sort of disagree with you. Prions are particularly attractive to a hypothetical bioterrorist due to the difficulty in detecting them, their durability and also the delay on effects. As I said above, once you know you have a problem it will be too late.
Keep in mind these are just the prions that nature has produced. It is quite possible that humans are able to modify existing threatening prions or develop whole new classes of threatening prions that haven't developed in nature.
Overall I think the most effective strike from a bioterrorist won't come from a single attack vector but a well timed combination of vectors. We've seen how something as minor as COVID has taken all of our attention and resources, now imagine if a terrorist timed something like COVID with a follow up strike like prions.
Terrorism is about fear, and that comes with spectacular actions even if it kills relatively few people, not with stealthy poisoning of big population.
You're not gonna have anything remotely as impactful as 9/11 with prions, even if you killed a million people in the long run.
Is it a good weapon for a nation state going at war, or committing a genocide. Definitely yes! But it sucks for terrorism.
Well a prion disease (called Kuru) did affect the Fore people of New Guinea seriously in the 1950s and 1960s as I recall. Here is what Wikipedia says about the Fore people:
> Furthermore, Kuru predominantly affected women, as women more commonly partook in cannibalistic religious rituals. Because of this, there was a significant sex imbalance in Fore society.[14] By some accounts, this gender imbalance reached a 3:1 male to female ratio at its worst. This affected the family structure of the Fore, as it became commonplace for children to be raised and cared for only by their fathers.[1]
It was a scary sounding disease so I remembered it when years later it was discovered to be caused by prions and reported in The New York Times.
*Technology has given us things like nukes, so...could be harder to predict these days.
I'm not afraid of being hit by some asteroid hanging there, but if one day we spotted an asteroid whose trajectory was straight to earth, then being terrified would be quite legitimate.
Because the 'scientific' community need to keep their jobs. You know they too have mortgages to pay...
So... point being there is endless stream of fear mongering (some of which ends up being true) to justify their existence.
> researchers [...] discovered a naturally occurring variant of a prion protein in a population from Papua New Guinea that confers strong resistance to kuru
> This community [...] has developed their own biologically unique response [...] this genetic evolution has happened in a matter of decades
They are a really scary thing, but it's a meteor strike style of scary, nobody really expects it to happen before we can deal with it.