The vaccine development process and coordination between health organizations have improved since a devastating 2014-2016 outbreak.

Aid agencies are racing to help health workers in the Democratic Republic of Congo. The virus is known to have killed at least 140 people, but the true toll may be far higher.

Mining has been the lifeblood of this remote Congolese hill town for decades. Now, it is fueling the spread of a devastating virus.

Dr. Tedros Adhanom Ghebreyesus, the director general of the World Health Organization, told The New York Times on a flight to the Democratic Republic of Congo that swift international support was necessary to contain the Ebola virus, which is spreading rapidly there.

Uganda said that flights to and from the Democratic Republic of Congo would be temporarily suspended, as the outbreak appeared to spread to a rebel-controlled province in Congo.

To some Africans, the claim that the continent’s largest health agency had already bungled its response scratched a familiar wound.

Cuban health care was once the pride of the island. Now the U.S. oil blockade is upending even basic medical care.

The group’s director general said 13 children were among those killed in the latest violence in the Darfur region, and he decried the targeting of health care facilities in the civil war.