Vuk have you bothered to read any of the links provided?

People who don't vaccinate their kids ARE risking the lives of other kids

No vaccine is 100% proof and we rely on Herd immunity to weed these diseases fully out

Yes STD's are generally harder to spread - the diseases we vaccinate against are generally spread via airborne particles

you cannot get Aids from kissing (see http://www.avert.org/can-you-get-hiv-aids.htm)

frankly YOU are sounding the crazy one and while Lemur sounds "enthused" he is perfectly rational in his beliefs