Dr Tedros Adhanom Ghebreyesus said it was moving faster than any previous one and had a high risk of spreading to other countries in the region.
READ MOREFear of Ebola is keeping pregnant women away from healthcare facilities in eastern Democratic Republic of Congo, raising the risk of stillbirths, premature births and maternal deaths as the country's deadliest Ebola outbreak continues to disrupt routine medical care.
Responders are warning the deadly haemorrhagic virus is spreading at an unprecedented rate, outpacing efforts to slow it in the remote eastern part of the country.
The new cases come after a deadly outbreak in Kent last month.
Sally Beaney outside Southampton Magistrates Court where she appeared charged charged with poisoning her neighbour with ant killer (Picture: Daily Echo/Solent News)
His family believe his death was a result of system failures across two hospitals and other services.
Shy was described as the 'softest' pet and was said to be the teenager's 'best friend' before the attack.
'As further laboratory assessments are being completed, we expect some further probable cases to be downgraded in the coming days.'
Weight-loss jabs and a focus on healthy living are killing off demand for potatoes and damaging fish and chip shop trade.
A dad who lost his 18-year-old son to meningitis after thinking he had fresher's flu says he tried to warn universities about the disease.
Nine-month-old Nala-Rose Fletcher is fighting for life after catching meningitis (Picture: JustGiving)
Latest update on the deadly meningitis outbreak.
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