Overview
- The World Health Organization declared the Bundibugyo ebolavirus outbreak a public health emergency of international concern in mid-May after hundreds of confirmed cases and dozens of deaths were reported in eastern DRC and neighbouring Uganda.
- Testing problems slowed early detection because many labs initially used assays calibrated for the Zaire Ebola strain, producing false negatives and creating a backlog that hindered contact tracing and isolation.
- Regional and global agencies including PAHO, Africa CDC and WHO have activated emergency systems and are shipping reagents and preparing candidate vaccines and therapeutics for rapid evaluation.
- Several countries have tightened travel rules or screening—most recently the UAE banning entry from DRC, Uganda and South Sudan—and health systems in countries such as the UK and India have isolated multiple suspected travellers while sending samples to reference labs for confirmation.
- Because licensed vaccines and many treatments target the Zaire strain and do not protect against Bundibugyo, response hinges on fast molecular diagnosis, strict infection control and scaled-up supportive care in conflict-affected areas where access and trust are major obstacles.