German newspaper Frankfurter Allgemeine Zeitung has corrected an interview with International Monetary Fund head Christine Lagarde in which she had been quoted as saying that a Greek exit from the euro zone was a "possibility".

The IMF released a transcript of the interview, which was still having an impact on markets today.

"We are not naive and we don't think that this is going to be or would be a walk in the park. It's a complicated issue and it's one that I hope the Europeans will not have to face because hopefully they will find a path to agree with the future of Greece within the euro zone," Lagarde was quoted as saying in the transcript.

"But, you know, it's a potential ...", she ended without completing the sentence.

FAZ, a leading German financial newspaper, said it had "changed" Lagarde's quote. 

Versions that ran today changed Lagarde's quote to read: "Nobody would wish a Grexit on the Europeans", according to a statement from the paper.

Meanwhile, a senior Moody's rating analyst has said that a Greek exit from the euro would not mark a return to the debt crisis of 2012.

But it would create risks of contagion and change the nature of the monetary union, which was supposed to be permanent.

"We don't think that a Greek exit would be inconsequential," Kathrin Muehlbronner, vice-president of sovereign risk at Moody's told Reuters in an interview in Lisbon. 

Many analysts worry that Greece will be forced to leave the euro zone if it fails to reach agreement with its creditors and receive more funds. 

"A Greek exit would change the face and the nature of monetary union, which was supposed to be permanent and would then turn out not to be," Muehlbronner said.

She added that Portugal would be at risk of contagion in the case of a Greek exit. 

She said the impact of a Greek exit would be limited by the European Central Bank's quantitative easing programme but might hit corporate operations. 

"It's unclear how it would play out," she said. "The sovereigns in a way are protected by the ECB's QE. It's less certain about bank funding and corporate funding and their ability to access markets." 

The ECB's programme has provided a "huge help" to the euro zone and will continue to have a large influence on interest rates until September 2016, when the plan ends. 

"So interest rates will remain anchored at very low levels, but they can now only go in one direction, which is up," she said. 

The ECB's programme has also reduced pressure on governments, she said. 

"With interest rates so low and funding conditions improving, the pressure has been taken off governments to pursue aggressive fiscal policy measures. That's clear for the whole euro zone," she said.