[HairOfTheDog]

perhaps you can tell me then, how is an unvaccinated person a risk to a vaccinated person?

I don't think they are.

You didn't admit what I asked you to admit. :~)

People get away without immunizations precisely because they are living in a vaccinated society that won't pass it on. If Polio were still common as it was, would you let your unvaccinated child play in the pool?

[kailbo]

Whatever happened to the Bubonic Plague?

What vaccine virtually eradicated that in the dark ages?

[AlanSC]

You are quoting the herd theory that if enough of the herd is protected, then the remainder is safe.

Was the vaccine really responsible for the decline or was it improvements in overall medical care, sanitation, central heating and air, and nutrition.

I don't have the graph in front of me but one I looked at before tracked the polio and other rates of infection from the early 1900s and the there was a noticeable declining trend of the diseases prior to the advent of the mass innoculation.

People often cite that mercury is not a causation of autism but yet, can you cite how the vaccine directly affected the rate of transmission one way or the other?

As for my child playing in a pool of polio - I do let my child play in the pools today and though not infested with polio, there is probably a host of other things that most people would be concerned with that doesn't bother me.