The first reported case in a big city has health officials worried
Ebola has reemerged. The virus has killed at least 25 people since early April in an ongoing outbreak in Congo. And on May 18, the World Health Organization declared a “high” public health risk in Congo, as well as a “high risk” of the disease spreading to neighboring countries, but stopped short of declaring a global public health emergency.
Most of the 43 confirmed and suspected cases reported as of May 18 have been in a rural area called Bikoro, within the same northwest Congolese province struck by the virus in 2014. (A separate, unrelated outbreak in West Africa at the same time made headlines as the deadliest in history.) And in May 2017,