Read the article again and substitute anthrax for peanuts. For those of us with a peanut allergy, there is little difference. "ONE passenger has ONE incident with anthrax and we want to ban it"... If anyone wants to make an informed decision about this, this will help. The specific problem with peanuts, as opposed to strawberries or shrimp, is the "dust". Just look at the tiny stuff at the bottom of the peanut bag. With such a high density of peanut snacks being popped open up at pretty much the same time it can be overwhelming and I too have been affected by it. One or two people eating a bag of peanuts wouldn't be a bad thing but serving peanuts is carpet bombing us. The "great ventilation" works against us as is stirs more of this dust than it removes. I have had a couple of occasions where I had to ask (read as tell) the flight attendants that I was heading to the back to sit in their jump seats after peanuts had been served. I haven't been on a flight in decades where peanuts were served, I thought they ALL realized that pretzels were just as acceptable as peanuts.
If Air Canada is short sighted enough to serve peanuts to all the passengers then they should be required to build the industry's only buffer zone.