The post you were replying to fully answered your question. It's quite simple... these diseases MUTATE if there is an outbreak among the unvaccinated thus infecting those whom were vaccinated. It's just like how the flu mutates yearly. Or how infections/illnesses are now antibiotic resistant. It is a direct result of overuse of antibiotics and antibiotics being given to the large majority of animals producing our meat, dairy, and poultry products. The hormones being pumped into these animals are also resulting in young girls starting their periods on average of 2 years earlier. That later results in more cancers due to the extended length of menstruation and estrogen levels. How about all the pesticides on our fruit? Or whatever they use to make them ripen quicker? How about all the crap in the air? How about the toxins put off by new carpeting, wood stains, burning candles, BBQ grill etc?<quoted text>
If you believe vaccines work then unvaccinated children should not concern you. You contradict yourself sir. Basically you are saying that if the unvaccinated children become ill your children are in danger. How? They are inoculated.
My point is that we are surrounded by toxins and carcinogens which cause genetic and cell mutations. It is a bit foolish to solely blame vaccinations. Even Jenny McCarthy has backtracked on her stance against vaccinations. She now agrees that those vaccinations are important and needed but they should be spaced out over a longer period of time.