Along with the four new cases, two more deaths were reported in the outbreak that spans a more than 100-mile area, including two cities.
Though no new cases reported in the two outbreaks, groups released new details about the Marburg virus spread in each country.
Eight more cases have been confirmed, with worries of undetected spread and infections now spanning three provinces that share borders with Cameroon and Gabon.
Since 2021, four African nations have reported their first Marburg virus outbreaks.
The patients are from two villages in the northwestern part of the country.
The Sabin Vaccine Institute has been awarded a multiyear contract to advance the development and production of vaccine candidates.
After Uganda declares its Ebola outbreak over, the CDC lifts screening for inbound travelers from the country.
The outbreak was announced on Sep 20, 2022, and involved 142 confirmed cases and a 39% case-fatality rate.
All 3 Zaire Ebola vaccine strategies in 4 African nations prompted an antibody response at 14 days that persisted for a year.
The latest case is the stillborn baby of a mother who survived Ebola.