Some of the diseases currently prevented by vaccinations are always around us, and many of us even carry the causative germs. Although I agree that allowing illegal immigration to continue unabated is probably bringing in a lot of new diseases, it is not responsible for the resurgence of whooping cough. That is a direct consequence of parents refusing to vaccinate their children.
Bullstuff!
The vaccine is not an immunization. It works 80% of the time, for 3-5 years. It confers some immunity some of the time, but not for long.
Every teenager and adult in this country, unless they have been revaccinated in the last 5 years, could easily contract whooping cough. So do NOT place blame on parents who didn't vaccinate their kids. There are more older people who have no immunity to pertussis than there are unvaccinated kids, by damn far.
Remember that freedom means you do not have to submit to vaccines, also.