From the responses, the team learned that the ALS patients were not the only mushroom foragers in town, but they shared an affinity for a particular species that local interviewees without ALS said they never touched: the false morel.
From the responses, the team learned that the ALS patients were not the only mushroom foragers in town, but they shared an affinity for a particular species that local interviewees without ALS said they never touched: the false morel.
Definitely not 100% external. A chunk of cases are known to be genetic.
And these people were eating a mushroom known to be mildly poisonous.