As an Oregonian, putting together the pieces, I'd guess she was in the field turning over cow patties looking for psychedelic mushrooms, a common but illegal hobby in that part of the world. Cow patty had flies and parasites, she touched her face, we all suffer this horrifying news cycle. The end.

Hehe hmm maybe. Well, there's good reason besides to touch cow poo frequently on a farm - it makes the best fertilizer for gardens, in raw or liquefied form. ..And you won't find sizable mushrooms under them will you? Can't see the point in turning them over for that.