The public health risk from the current Ebola outbreak in the Democratic Republic of Congo has been raised from "high" to "very high" by the World Health Organization (WHO).
In an update on Friday, WHO head Dr Tedros Adhanom Ghebreyesus also said the risk in the wider region in Africa was "high", but it remained "low" globally.
The rare species of Ebola, known as Bundibugyo, has no proven vaccine and kills about a third of those infected. So far, the outbreak centred on DR Congo has resulted in 177 suspected deaths and 750 suspected cases.
It comes as scientists at Oxford University in the UK are developing a new vaccine that could be ready for clinical trials within two to three months.
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