The death total remains at one, the index patient who died in late January.
Uganda last reported an Ebola outbreak in 2022.
The index patient's wife is the second confirmed case, and 3 close contacts are isolated for treatment and testing.
In a related development, Ugandan scientists who sequenced the virus say they don't see a link to the country's 2022 outbreak.
The index patient is a 32-year-old man who worked as a nurse at a hospital in Kampala and died after seeking care at multiple facilities.
The same DRC province reported an outbreak in 2022, which involved a new jump from animals to people.
Hepatitis A virus and vaccinia virus showed evidence for sexual transmission but no evidence for detection in the semen.
Sierra Leone's campaign focuses on frontline responders including healthcare workers, traditional healers, community health groups, lab teams, and taxi drivers.
At least two doses of the novel oral polio vaccine type 2 are needed to interrupt transmission
Effectiveness was consistent across sexes and age-groups: 80% in females, 86% in males, 80% in children, and 83% in adults.