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.

An Air France plane was sent to Montreal because a passenger from the Democratic Republic of Congo was on board. The U.S. has closed its borders to recent visitors to the African country.

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