Outbreak briefing

As of May 29, 2026, two active outbreaks are being monitored globally. The lead outbreak is the Ebola disease caused by Bundibugyo virus in the Democratic Republic of the Congo, with 85 confirmed cases, 746 probable cases, and 176 deaths reported across four countries. The second lead outbreak is a hantavirus outbreak linked to cruise ship travel, affecting nine countries with 11 confirmed cases, two probable cases, and three deaths.

The ongoing Ebola outbreak in the Democratic Republic of the Congo and the hantavirus outbreak linked to cruise ship travel are receiving close surveillance attention. Authorities and journalists should continue to monitor these outbreaks, particularly in the Democratic Republic of the Congo and countries with reported cases of hantavirus infection.