Top 10 most corrupt countries in the world

Ranking the world's most corrupt nations for 2018.

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  • Corruption plagues governments around the world.
  • Some of the same countries are the most and least corrupt every year.
  • Nigeria and Somalia top two of the most respected corruption rankings.
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Bill and Melinda Gates to pay off Nigeria’s $76 million polio debt

Nigeria, which accounted for more than half of all polio cases in 2012, reported zero new cases of the infectious disease in 2017. 

UNICEF health consultant Hadiza Waya (R) tries to immunize a child during a vaccination campaign against polio in northwest Nigeria. (Photo: Pius Utomi Ekpei/AFP/Getty Images)

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