New Ebola cases down to zero last week: WHO
Positive sign but near-term risk of further cases remains
No new Ebola cases were reported last week, a milestone since the outbreak began last March, the World Health Organization says.
"This is the first time a complete epidemiological week has elapsed with zero confirmed cases since March 2014," Wednesday's report said.
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In Sierra Leone, all contacts of Ebola cases completed 21 days of follow-up without becoming sick, a positive sign.
In Guinea, more than 500 contacts continue to be followed.
"There remains a near-term risk of further cases," the UN health agency said.
No new health worker infections were reported in the week to Oct. 4.
Since it first broke out in Guinea's forest region last year, Ebola has killed more than 11,200 people in West Africa.
With files from The Associated Press