Dianne, 10ppm should do the trick but I wouldn't rely on silver only. Silver will inactivate any virus or bug, but it has to come into contact with the particle for it to work. I'd take other things along with the silver... allicin is a wonderful anti-viral as is MMS.
Bob ----- Original Message ----- From: Dianne France To: silver-list Sent: Tuesday, April 28, 2009 3:21 PM Subject: CS>PPM If we have this swine flu go pandemic what strength of silver should we be using to combat the virus? I had the flu over the winter and was using 5PPM and it didn't seem to help. Dianne