Outbreak briefing

As of June 5, 2026, two active outbreaks are reported globally. The lead outbreak is the Ebola disease caused by Bundibugyo virus, affecting 134 confirmed cases, 906 probable cases, and 223 deaths across two countries, the Democratic Republic of the Congo and Uganda. The second lead outbreak is a Hantavirus outbreak linked to cruise ship travel, with 11 confirmed cases, 2 probable cases, and 3 deaths reported across eight locations.

The ongoing Ebola outbreak in the Democratic Republic of the Congo and Uganda warrants close surveillance, particularly in neighboring countries. The Hantavirus outbreak linked to cruise ship travel also requires monitoring, as it has spread across multiple locations, highlighting the need for enhanced disease surveillance in areas with international travel connections.