I'm a lurker and don't really know how to post so I hope this is right. But... Did Ray just say that Homo Sapiens appeared around two million years ago when a new ice age began. I've never quite heard this. Ray did you really just want to say the genus homo? as in Homo erectus. I haven't studied the efficacy or the safety of any particular vaccine. And as of right now I have no opinion on the matter of vaccinations since I have gone through mine and I have no children on my schedule. but I read one post stating since they and their children were eating a paleo diet that it would make them far healthier so diseases would have less or no effect on them. Umm.. Hunter/gatherers throughout recorded time have been especially weak to new bacterial and virus outbreaks. Didn't Todd just post about the Yanomani that were rapidly diminished by measles when they were introduced.(on purpose or accident, you make the call) So don't say your diet will protect you against these ridiculously fantastic bugs that can change gene expression within a short time(that's why you should always take a full course of antibiotics, I know writing about antibiotics might get me lynched as of what I have been reading lately on this list) As I see it to remain disease free, you must get a group of others who want to hunt, check everybody for diseases. Move to place with no possible vectors(Antartica maybe, but not likely)and eat penguins. Or of course there is that wonderful plastic bubble. Eric Play dumb roulette, next time you step on a rusty nail don't get a tetanus shot. --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.198 / Virus Database: 95 - Release Date: 10/4/00