In October that committee held off declaring Ebola in DRC "a public health emergency of international concern," but has decided to review the situation amid a series of worrying developments.
As of April 9, nearly 1,200 cases of the virus have been reported in the affected provinces of North Kivu and Ituri, with 751 people dead, the WHO said.
Poor security owing to the presence of armed groups, coupled with resistance of some communities to seeking treatment, has hampered the fight to stem the spread of the disease.
When health workers are unable to get to communities because of unrest, "no people are being vaccinated, there is no treatment (and) people are staying at home and infecting other people."
"Now we see that we are regaining that access and it is normal when you start regaining that access that you start seeing those cases that you have not seen when you didn't have access, and that partially explains the rise in numbers," he said.
WHO considers defines a public health emergency of international concern as "an extraordinary event" that poses risks to multiple states and requires "a coordinated international response." This is DRC's 10th outbreak of Ebola in 40 years and is the second worst to date.
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