The Ebola virus may have been contained in Nigeria and Senegal, US health authorities say, after no new cases were reported there for a month.
The US Centers for Disease Control and Prevention (CDC) say the outbreak could be declared over in Nigeria next month.
It continues, however, in other parts of West Africa, in particular Liberia, Guinea and Sierra Leone.
The World Health Organization (WHO) says more than 3,000 people have died of the virus so far, mostly in Liberia.
In Nigeria, Africa’s most populous country, there have been 19 confirmed cases of the virus and eight deaths since the first confirmed case there in July.
There has been one confirmed case in Senegal, but no deaths so far.
It is the world’s most deadly outbreak of the virus.
Ebola virus disease (EVD)
- Symptoms include high fever, bleeding and central nervous system damage
- Spread by body fluids, such as blood and saliva
- Fatality rate can reach 90% – but current outbreak has mortality rate of about 70%
- Incubation period is two to 21 days
- There is no proven vaccine or cure
- Supportive care such as rehydrating patients who have diarrhoea and vomiting can help recovery
- Fruit bats, a delicacy for some West Africans, are considered to be virus’s natural host
Ebola virus: Busting the myths