President Obama has said US government experts think there is an "extremely low" chance of an outbreak of Ebola in America.
Speaking at the Centers for Disease Control and Prevention (CDC), Mr Obama said: "I want the American people to know that our experts here at the CDC and across our government agree that the chances of an Ebola outbreak here in the United States are extremely low."
President Obama has issued a stark warning that the spread of the Ebola virus is "spiralling out of control" in a way that could threaten global security.
He said that without rapid action, the number of victims could soon rise from the thousands to "hundreds of thousands".
President Obama has said the world is looking towards his government to help prevent the spread of the Ebola virus.
Speaking at the Centers for Disease Control and Prevention in Atlanta, he said: "The world is looking to us, the United States, and it's a responsibility we embrace."
"We're prepared to take leadership on this, to provide the capabilities that only America has and to mobilise the world in ways only America can do."
A safety trial of an experimental vaccine for the deadly Ebola virus has been tested on 10 volunteers without any "red flags" indicating a negative reaction so far.
Another 10 volunteers will be injected in the coming days as part of the trial, which is taking place in the state of Maryland.
Researchers will determine not only whether the vaccine causes adverse reactions but also whether it triggers the production of antibodies against the deadly virus, which has claimed the lives of over 2,200 people in West Africa.
Funds raised in the name of Stephen Sutton, the teenager who died from cancer, have reached astonishing £5 million.
ITV News Reporter Rupert Evelyn on Stephen's legacy of cancer research that his remarkable efforts will now fund:
US President Barack Obama has met Ebola survivor Dr Kent Brantly and his wife Amber at the White House.
Dr. Brantly, an American citizen, contracted the deadly virus while in Liberia doing missionary aid work.
By Debi Edward: Scotland Correspondent
It is perhaps in light of the momentum that the Yes campaign has gained that the No campaign went on the attack today.
They distributed a document - leaked by an NHS doctor - which states:
The Better Together campaign claims that flies in the face of their rival's claims that only a Yes vote can protect the NHS from cuts.
Well, the Scottish government have said they are the ones protecting and increasing the NHS budget in Scotland, and that only independence can offer the health service a brighter future.
The Yes campaign really have been able to gain some traction on this NHS debate despite health being a devolved issue - the Better Together campaign say it's "the biggest lie" of the referendum so far.
Our experts take a look at the key issues that would face Scotland and the rest of the UK if Scots vote for independence.Read the full story ›
UN aid agency Unicef has launched an appeal to raise $200m to fight the Ebola outbreak in west Africa.
It is part of a broader appeal from governments and other humanitarian groups for almost $1 billion to fight the disease.
Unicef, which is responsible for the welfare of children in emergency situations, estimates that 8.5 million children and people under the age of 20 live in affected areas in Guinea, Sierra Leone and Liberia
Afshan Khan, Unicef's Director of Emergency Programmes, said: “It is closing schools, destroying health systems and threatening the very fabric of communities. This is a crisis of enormous proportions.”
A report by a group of mental health charities is calling on the government to fast-track a 28-day maximum waiting time for all patients before more lives are lost.
Sean Duggan, chief executive for the Centre for Mental Health, admitted it was "unacceptable" that some patients were having to wait up to a year to be seen.
ITV News Health Editor Catherine Jones has been hearing one woman's story: