I was curious where I could find information on immunity in adults. Specifically, how long does immunity from vaccines last in adults? I was vaccinated as a child for polio for example, but does that mean I'm still immune? I'm not planning on vaxing my DD and when some people hear this they usually bring up the risks of her catching diseases. But if she is susceptible then aren't I if I no longer have immunity. Couldn't I catch measles, or whooping cough if I haven't had booster shots? Couldn't these people who criticize me? What do I tell them? How well "protected" are most adults? If there is such a risk of new outbreaks because of non-vaxing families then isn't the whole population at risk? Shouldn't the government be pushing for adults to get boosters and not just pushing for children to get vaccinated if vaccines are for the good of the whole society?? I hope my questions make sense.