In the pre-vaccine era, quarantines were the only way to try and help stop many diseases from spreading in the community.
Are there really 100 myths about vaccines that folks push to scare parents away from vaccinating and protecting their kids?
DDT is a pesticide that was widely used after World War II and was sometimes sprayed in a vain attempt to keep polio outbreaks from getting out of control. That is the only connection to polio though.
Learn just how quickly most anti-vaccine misinformation can be debunked if you simply practice being a little skeptical and do your own research.