The vaccine, which is administered as a single-dose injection, will help to prevent EVD caused by Zaire ebolavirus in patients aged 18 years and older, the regulator said in a statement.

The United States, Britain, Canada and Switzerland on Thursday issued a joint statement condemning the “senseless acts of violence.”

A patient's death is challenging the theory that someone can only catch Ebola once.

Tanzania relies heavily on tourism and an outbreak of Ebola would likely discourage visitors.

The Global Preparedness Monitoring Board, World Bank and the World Health Organization warned that epidemic-prone viral diseases like Ebola, flu and SARS are increasingly tough to manage in a world dominated by lengthy conflicts, fragile states and forced migration.

The explosion reportedly occurred at a lab in Russia, one of only two places in the world known to have a stock of the smallpox virus.

The death toll from the current Ebola outbreak in the Democratic Republic of Congo has climbed over 2,000.

Two Ebola patients treated with a new drug have been declared healthy and allowed to return home.

Two experimental Ebola treatments are significantly cutting mortality rates, according to early clinical trial results.

The ongoing Ebola outbreak in the Democratic Republic of Congo is now one year old and has killed more than 1,800 people.