Geneva - Nearly 7 000 people have now died from Ebola in West Africa, with the latest report from the World Health Organisation counting over 1 200 more deaths than in a toll given on Wednesday.
Data published by the UN's health body late on Friday showed that 16 169 people had been infected with Ebola and that 6 928 of them had died in the three countries at the centre of the outbreak - Sierra Leone, Guinea and Liberia.
On Wednesday, WHO had put Ebola death toll in the three countries at 5 674, with 15 additional deaths in other countries.
WHO provided no explanation for the steep hike in fatalities, mainly in Liberia, but the new toll likely includes previously unreported cases.
Given the difficulty in collecting figures and with the fatality rate in the current outbreak known to be around 70%, the agency has previously said it believes there have been far more deaths than those registered.
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The deadliest Ebola outbreak ever has so far hit Liberia the hardest, although observers say the spread of the virus there has slowed significantly in recent weeks.
Nonetheless, Liberia accounts for the lion's share of the new deaths tallied, now counting 4 181 deaths out of 7 244 cases.
That compares to the 3 016 deaths and 7 168 cases in Wednesday's toll.
Sierra Leone, which according to the WHO is still seeing a rapid spread of Ebola in many parts of the country, now counts 1 461 deaths out of 6 802 cases, up from 1 398 deaths and 6 599 cases on 26 November.
Guinea, where the outbreak began nearly a year ago, meanwhile counted 1 284 deaths out of 2 123 cases, up from 1 260 deaths and 2 134 cases two days earlier.
The WHO did not provide an update on other countries affected by the outbreak.
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In the previous update the UN agency said Mali, the most recent county in the region hit by Ebola, had eight confirmed cases, six of which have proved fatal.
The country announced on Friday that it had for the first time successfully treated a patient with the virus.
Nigeria, which has reported eight Ebola deaths, and Senegal, which only saw one case, have not recorded any new cases for 57 days. Both countries have now been declared Ebola-free.
There have been four Ebola cases in the United States, one of which was fatal.
There has also been one confirmed case in Spain, a nurse who has recovered.
Ebola, one of the deadliest viruses known to man, is spread only through direct contact with the bodily fluids of an infected person showing symptoms such as fever or vomiting.
People caring for the sick or handling the bodies of people infected Ebola are especially exposed.
Health workers have been among the worst hit, with 340 deaths out of 592 cases.