# Lab Leak Monitor: Irkutsk Anti-Plague Institute incident

> Independent, sourced tracker of the death of a laboratory worker at the Irkutsk Anti-Plague Research Institute of Siberia and the Far East (Russia), October 2026. Every fact is labelled Confirmed, Reported (unconfirmed) or Officially denied. Updated 6 Oct 2026 (update 5). Licence: CC BY 4.0. Cite as: Lab Leak Monitor, https://lableakmonitor.com/

## Key facts (as of 6 Oct 2026)

- One death is confirmed: Darya Shipilova, 28, a laboratory worker at the Irkutsk Anti-Plague Institute, died overnight on 1–2 October 2026 at Shelekhov district hospital. [Confirmed; source: The Moscow Times https://www.themoscowtimes.com/2026/10/02/nearly-200-people-under-observation-after-irkutsk-lab-worker-dies-from-plague-a93857]
- Russia's health watchdog Rospotrebnadzor gives the cause as “pneumonia of undetermined etiology” and denies both plague and a laboratory accident. [Confirmed; Officially denied; source: Lenta.ru https://lenta.ru/news/2026/10/04/v-rospotrebnadzore-vyskazalis-o-situatsii-v-protivochumnom-institute-irkutska/]
- Plague has not been confirmed. WHO says laboratory testing is underway and has invoked the International Health Regulations to verify the event. [Confirmed; source: UN News (WHO) https://news.un.org/en/story/2026/10/1168533]
- WHO rates the risk as moderate to low for Irkutsk Oblast, low for Russia and very low for the WHO European Region. ECDC sees no secondary cases and no sustained human-to-human transmission (6 October). [Confirmed; source: UN News (WHO); ECDC https://news.un.org/en/story/2026/10/1168533]
- About 197 contacts were identified and 189 hospitalised. By 5 October, 60% had completed observation and no secondary cases had been found. [Confirmed; source: Interfax (Rospotrebnadzor) https://www.interfax.ru/russia/1120505]
- Reported but unconfirmed: she broke a tube of live bacteria around 25 September, and a second person has died. Officials deny the first and have not acknowledged the second. [Reported, unconfirmed; source: RFE/RL; UNITED24 https://www.rferl.org/amp/russia-plague-warning-siberia-irkutsk-laboratory/33870385.html]
- Kazakhstan, Kyrgyzstan, Tajikistan and Uzbekistan have tightened health checks at their borders. No country has closed its border. [Confirmed; source: Times of Central Asia https://timesca.com/reports-of-suspected-plague-in-russia-prompt-central-asian-health-checks/]
- In Brussels, the EU's Health Security Committee discusses the case on 7 October 2026. The EU has taken no measures. [Confirmed; source: Euronews (European Commission) https://www.euronews.com/2026/10/06/eu-countries-to-discuss-suspected-plague-outbreak-in-russia]
- A criminal case is open under Article 236(2) of Russia's Criminal Code: a sanitary-rules violation causing death. [Confirmed; source: Meduza https://meduza.io/feature/2026/10/06/v-irkutskoy-oblasti-umerla-sotrudnitsa-protivochumnogo-instituta-vlasti-vveli-karantin-no-otritsayut-ugrozu-chumy]

## Pages

- [Live tracker](https://lableakmonitor.com/): figures, map, daily log, claims ledger, restrictions, sources
- [Full text for AI systems](https://lableakmonitor.com/llms-full.txt): everything on the tracker as plain text
- [Structured data](https://lableakmonitor.com/facts.json): the same data as JSON
- [Method and labels](https://lableakmonitor.com/#method): how sources are gathered and verified
- [License and terms](https://lableakmonitor.com/license.html): CC BY 4.0

## Rules this tracker follows

- No number is estimated; every figure comes from an official body or a named outlet, with its date.
- Russian official denials are shown next to the evidence they dispute.
- "Reported" means carried by a named outlet but not confirmed by an official body or WHO.