New York City Mayor Bill de Blasio has stressed the hospital the city's first Ebola patient is being treated in is "fully staffed".
He wrote on Twitter:
Thank you to the staff at Bellevue Hospital for their commitment and professionalism. Contrary to media hype, the hospital is fully staffed.
Dr Craig Spencer had recently returned from treating Ebola patients in Guinea, West Africa, with Doctors Without Borders.
US President Barack Obama has used his Weekly Address to urge America to stay calm over the spread of the Ebola virus.
President Obama said the response to the deadly disease needed to be based on "facts, not fear".
Mr Obama added: "We have been examining the protocols for protecting our brave healthcare workers, and, guided by the science, we'll continue to work with state and local officials to take the necessary steps to ensure the safety and health of the American people."
Ed Miliband's position as leader of the Labour party has been called into question by outgoing chair of the Scottish Labour Party Johann Lamont.
The criticism is another setback for Mr Miliband with just six months to go until a General Election as ITV News Political Correspondent Libby Weiner reports:
The outgoing chair of the Scottish Labour Party said "it has been an immense privilege to lead" the part during the "momentous time in Scottish politics."
In her resignation letter, Johann Lamont said she believed Labour Party is the "only chance for better Scotland."
Some, including senior members of the party, have questioned my place in this new phase. In order that we can have the real discussion about how we take Scottish Labour forward, I believe it would be best if I took myself out of the equation and stepped down as leader.
"Despite the serious challenges we face, I strongly believe that the Labour Party is not only our best chance of achieving a better, fairer Scotland, it's our only chance," she said.
Labour former first minister Lord McConnell told BBC Radio Scotland's Good Morning Scotland programme he was "very, very angry" and said UK party leader Ed Miliband had questions to answer.
She (JohannLamont) clearly blames today publicly Ed Miliband and those around him and that's a very serious accusation that requires answers, and it requires answers not just from him but from those closest to him.
I have had my concerns for some time about the way in which the Scottish Labour Party was struggling to set out a vision for the 21st century and a positive vision that would take us from opposition back into power. I think the responsibility for that difficulty is shared amongst a number of different people and I'm absolutely certain that Johann Lamont would take some responsibility herself for that.
I think there are serious questions that need to be asked about what has happened in these past two weeks, but also that this issue has to be resolved in advance of the election of the next leader of the Scottish Labour Party.
Outgoing Scottish First Minister Alex Salmond said:
I always found Johann Lamont to be a spirited opponent in the Scottish Parliament, strongly dedicated to her party, and I wish her well for the future.
The fact that Scottish Labour are now going to have their fifth leader since the SNP took office in 2007 indicates that their problems are not about personalities - they are much more deep-seated than that.
It was always very clear that Johann Lamont was never able to be meaningfully in charge of Labour in Scotland, and that is laid bare in dramatic fashion in her resignation comments.
Outgoing Scottish Labour Party leader Johann Lamont has accused the Westminster leadership of treating the party in Scotland as a "branch office".
Announcing her resignation, Ms Lamont told the Daily Record:
Just as the SNP must embrace that devolution is the settled will of the Scottish people, the Labour Party must recognise that the Scottish party has to be autonomous and not just a branch office of a party based in London.
Scotland has chosen to remain in partnership with our neighbours in the UK. But Scotland is distinct and colleagues must recognise that.
There is a danger of Scottish politics being between two sets of dinosaurs ... the Nationalists who can't accept they were rejected by the people, and some colleagues at Westminster who think nothing has changed.
Tony Blair has denied saying Ed Miliband cannot lead Labour to victory at the General Election because he has "failed to connect with voters".
The Daily Telegraph claimed the former prime minister had told friends privately of his concerns.
The paper quoted a source as saying :"The Conservatives will be the next government because Labour has failed to make a good case for itself. That is what Tony thinks."
But Blair's office were quick to dismiss the alleged quotes and tweeted that the story "does not represent my view".
It added: "Ed Miliband and the Labour Party can and will win the next election."
TB says: the Telegraph story does not represent my view. Ed Miliband and the Labour Party can and will win the next election.
A female nurse who was quarantined at a New Jersey airport today after returning from West Africa has a fever, health officials said.
The New Jersey Health Department said the woman is now in isolation and being evaluated at University Hospital in Newark but gave no further details on whether it was Ebola.