In the last 20 years, thanks to your hard work, polio has declined by 99 percent. In 1988, 350,000 people got polio. By 2008, the number was down to just a couple of thousand.

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Quote text and notes from Wikiquote: Bill Gates (page history), available under CC BY-SA 4.0. Source quality and labels are our own summary of what Wikiquote records.