Natural outbreaks of plague have been confirmed in the Khövsgöl aimag, a region of Mongolia bordering Russia, following joint Russian-Mongolian laboratory investigations and epidemiological surveillance.
Specialists investigated the status of the natural outbreaks from August 14 to 31, 2026, confirming the presence of the causative agent. In September 2025, the infection caused one death in Khövsgöl. In late July 2026, bubonic plague was detected in a patient in the Khovd region, bordering China.
Regular joint monitoring was agreed upon for 2026–2029. Officially, there are confirmed outbreaks in 130 aimags across 17 regions of Mongolia.
