While some articles claim that Ebola has killed so far 521 people in DRC, Ebola had already killed 534 by week 7. According to WHO in week 8, 12 more people died of Ebola and now Ebola death toll stands at 546 cases.

https://apps.who.int/iris/bitstream/handle/10665/310988/OEW08-1824022019.pdf