Comment by GioM

The forests of New Brunswick are routinely sprayed with large amounts of glyphosphate herbicide.

Is it possible that this is the cause, instead of prions?

[1] https://www.conservationcouncil.ca/where-our-forest-is-being...

[2] https://www.cbc.ca/news/canada/new-brunswick/liberals-greens...

[3] https://nben.ca/en/component/tags/tag/glyphosate-ban

[4] http://www.stopsprayingnb.ca/?page_id=118