in West Africa an international health emergency.
WHO officials said the possible consequences were "particularly
serious" because of the virulence of the virus.
The announcement came after experts convened an emergency meeting in
Switzerland.
So far more than 930 people have died from Ebola in West Africa this year.
The United Nations health agency said the outbreak was an "extraordinary event".
It advised that the possible consequences of further international
spread of the outbreak were "particularly serious" because of the
virulence of the virus.
"A coordinated international response is deemed essential to stop and
reverse the international spread of Ebola," the WHO said in a
statement.
Ebola virus disease (EVD)
*.Symptoms include high fever, bleeding and central nervous system damage
*.Fatality rate can reach 90% - but the current outbreak is about 55%
*.Incubation period is two to 21 days
*.There is no vaccine or cure
*.Supportive care such as rehydrating patients who have diarrhoea and
vomiting can help recovery
*.Fruit bats are considered to be virus' natural host.
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