The estimated number of polio cases per year has fallen drastically, but we're not done yet.
Polio from 3000 BC to present day.
In developing countries, just a few diseases kill millions of children under age five.
Thanks to global childhood immunization campaigns, polio has been reduced by 99 percent globally, and eradication is within reach.
We have the opportunity to save more than 500,000 children every year.
Vaccines work to save money and save lives.