Both US aid workers that had become infected with the Ebola virus have been released from hospital in Atlanta, Georgia, after they were found to have been cured.
In a press conference, doctors from Emory University Hospital made clear that they could not be sure whether treatment with ZMapp was the reason for the survival of the patients.
While Ebola sees a mortality rate of between 50% and 90% in Africa, it is unlikely that the virus would be so deadly in countries like the US with well-developed healthcare infrastructure.
Dr Kent Brantly and Nancy Writebol were both treated with the experimental ZMapp drug, stockpiles of which have since been shipped to Liberia to help fight the outbreak in West Africa.
Meanwhile, security forces have been deployed in Liberia’s capital Monrovia to enforce a quarantine in a large slum area with a population of more than 50,000 to try and slow the spread of the disease.
The move comes in the wake of an attack on an Ebola treatment facility in the West Point township in Monrovia, causing 37 patients to flee the facility, all of whom returned within a few days.
More than 1,350 people have died in Liberia, Guinea, Sierra Leone, and Nigeria after contracting the deadly disease during the current outbreak in West Africa.