More than 1,600 people have died since August in what is the second-deadliest Ebola outbreak in history.
The virus has killed more than 190 people in the country since the outbreak was declared in August.
An active conflict zone and rising infections among health care workers are helping to spread the deadly disease.
The news comes just a week after the country announced the end of its ninth Ebola outbreak.
"It is unacceptable that Virunga’s rangers continue to pay the highest price in defense of our common heritage."
HuffPost traveled to Nigeria and Congo to document the fight against this preventable disease.
HuffPost traveled to Nigeria and Congo to film the devastating toll that three illnesses take on local people, and what’s being done to help.
Nearly half the population of Congo is at risk for elephantiasis, which can produce hugely swollen body parts.
A disease detective calls out the world's apathy toward forgotten illnesses.
Congo’s doctors are fighting sleeping sickness with scarce resources and too little support.
The WHO sent a team of experts to Congo this month to try and stop the disease's spread.
40 million people in the Congo are at risk of river blindness.