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bill gates eradicate polio banfield intv_00031015
bill gates eradicate polio banfield intv_00031015

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    Bill Gates pledges $450 million to fight polio

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Bill Gates pledges $450 million to fight polio

CNN's Ashleigh Banfield interviews Bill Gates about trying to eradicate polio and his future ambitions.

Bill Gates pledges $450 million to fight polio

CNN's Ashleigh Banfield interviews Bill Gates about trying to eradicate polio and his future ambitions.