Wondering if this can be airborn. There was the Oakland, CA flu back in the 80's with thousands sick. Hospitals and clinics were full. The only place it struck was Oakland and not any of the surrounding cities (SF, Berkeley, Hayward). After testing it was determined cause was a chemical that followed the trade winds from Japan and landed in Oakland. There was only once place in the world that used this chemical, and it originated at a plant in Japan.