Outbreak briefing

As of 2026-05-27, 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 4 countries. The other lead outbreak is a Hantavirus cluster linked to cruise ship travel, affecting 9 countries with 8 confirmed cases, 2 probable cases, and 3 deaths.

The ongoing Ebola outbreak in the Democratic Republic of the Congo and the Hantavirus cluster 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, to track their progression and any potential spread.