On Mar 23, 2010, at 8:48 AM, Rémi Denis-Courmont wrote: > Do you take vaccinations for illenesses that don't exist anymore? Most people > don't even take vaccinations for some that do exist but not where they live. Yes, and as a result we are seeing a resurgence of polio and other diseases. I think the analogy applies perfectly. http://www.ipinc.net/IPv4.GIF