Sierra Leone has officially been declared free of Ebola by the World Health Organization (WHO).

 The World Health Organization is to set up a $100m (£63m) emergency contingency fund following the Ebola outbreak, its director-general has announced.

An experimental drug has cured monkeys infected with the Ebola virus, US-based scientists have said. 

 The Ebola outbreak in West Africa will be over by August, the head of the UN Ebola mission has told the BBC.

 The vice-president of Sierra Leone has put himself into quarantine after one of his bodyguards died from Ebola.

 The World Health Organization (WHO) has set out plans for reform, admitting that it was too slow to respond to the deadly Ebola outbreak in West Africa.

 West Africa's Ebola crisis is likely to last until the end of 2015, says a leading researcher who helped to discover the virus.

 The Ebola outbreak is now "stable" in Guinea, where the latest crisis began, the World Health Organization says.

 A Malian nurse has died of Ebola, the second confirmed death from the disease in the country.

 Top African business leaders have established an emergency fund to help countries hit by the Ebola outbreak.

The World Bank on Thursday announced an additional 100 million U.S. dollars of funding in a response to curtailing Ebola crisis so as to speed up deployment of foreign health workers to the three worst-affected countries in West Africa

 A New York doctor who recently returned from Ebola-hit Guinea in West Africa has tested positive for the disease.

 US President Barack Obama has played down the chance of an Ebola outbreak in the US, after a second nurse became infected caring for a patient.

 Nurses and medical assistants fighting the Ebola outbreak in Liberia have largely ignored a call to strike over danger money and conditions.

 A US health chief has said a mistake was "clearly" made by hospital staff treating an Ebola victim in Texas, resulting in one member being infected.

 A leading charity has warned that a rate of five new Ebola cases an hour in Sierra Leone means healthcare demands are far outstripping supply.

 Eight members of a team trying to raise awareness about Ebola have been killed by villagers using machetes and clubs in Guinea, officials say.

 President Barack Obama has called the West Africa Ebola outbreak "a threat to global security" as he announced a larger US role in fighting the virus.

 Liberia is facing a "serious threat" to its national existence as the deadly Ebola virus "spreads like wildfire" there, its defence minister says.