'Obama effect' boosts views of US

Views of the US around the world have improved sharply over the past year, a BBC World Service poll suggests.

For the first time since the annual poll began in 2005, America's influence in the world is now seen as more positive than negative.

The improved scores for the US coincided with Barack Obama becoming president, a BBC correspondent notes.

As in 2009, Germany is viewed most favourably while Iran and Pakistan are seen as the most negative influences.

Nearly 30,000 people in 28 countries were interviewed for the poll, between November 2009 and February 2010.

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