In January–August 2026, Nizhny Novgorod Region recorded 278 cases of hemorrhagic fever with renal syndrome (HFRS), commonly known as mouse fever. The incidence rate for the first nine months of the year stood at 9 cases per 100,000 population, which is 1.5 times higher than the 2025 level, 2.2 times higher than the region's long-term average, and more than twice the national average for Russia.[1][2]
Geography of the Outbreak
Cases have been recorded in 39 municipalities of the region. The largest share of those infected — 52% — are residents of the Nizhny Novgorod urban district. Other areas with high incidence rates include Bor, Dzerzhinsk, Shakhunya, and the Voskresensky, Gorodetsky, Lyskovsky, and [1][2] Bogorodsky districts.
Zoological Monitoring
During zoological monitoring, staff from the regional Rospotrebnadzor directorate discovered infected rodents in the Voskresensky, Kulebaki, Shakhunskiy, Tonshaevskiy, Dalnekonstantinovsky, and Gorodetsky districts. Data on the outbreak were published by the State Veterinary Administration of the Rospotrebnadzor of the Nizhny Novgorod Region.[1]
Dangers of the Disease
HFRS develops in stages and, if not diagnosed in time, can lead to serious complications — most notably acute renal failure. At the first appearance of symptoms, immediate medical attention is required.[2]
Sources
- V gorode N — Hemorrhagic fever with renal syndrome cases up by one and a half times in Nizhny Novgorod Region (archive)
- pravda.ru — 278 cases in eight months: hemorrhagic fever with renal syndrome is becoming increasingly common in Nizhny Novgorod Region (archive)
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