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Russia tells WHO no plague case recorded in Irkutsk, but the cause of lab worker's death remains unidentified

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Russian health authorities have formally told the World Health Organization (WHO) that "no case of plague has been recorded in Irkutsk, either in her or in anyone else." The statement concerns the death of a laboratory worker at a Siberian anti-plague institute, according to a WHO statement quoted by Global News.

The WHO says Russia has not yet said which pathogen caused the woman's fatal pneumonia. The agency has asked for that information. Reuters, as carried by Medscape, said it could not establish whether Russia's reply meant the worker herself had been tested, or whether plague had been ruled out in her case.

What is new since Monday's update

Russia's reply to the WHO. WHO spokesperson Christian Lindmeier read Russia's official response at a Geneva briefing on Tuesday: "No case of this dangerous disease has been recorded in the city of Irkutsk, Russian Federation," Reuters reported. According to the WHO, Russia said the woman's illness "first looked like a typical acute respiratory viral infection." AFP reported that the note described an epidemiological investigation into a "case of community-acquired pneumonia."

The WHO says it asked Russia for information on 3 October under the International Health Regulations; Russia replied on 6 October.

The WHO's initial risk assessment, according to the UN Geneva newsroom, puts the risk at "moderate to low for Irkutsk, a low risk for the Russian Federation as a whole, and very low for the WHO European region." Lindmeier said Russia has not asked for WHO experts to deploy.

WHO Director-General Tedros Adhanom Ghebreyesus wrote on X that the WHO had asked Russia about the cause of the pneumonia and the pathogen that prompted the public-health measures. He said the WHO had also asked about "media reports of a second employee with pneumonia of undetermined cause," according to ANI via The Tribune. No details of a second case have been confirmed. "Timely, complete and transparent information sharing under the International Health Regulations is essential to clarify conflicting reports," Tedros wrote, as quoted by AFP.

Contacts: conflicting figures. Rospotrebnadzor, Russia's federal public-health agency, said medical observation had ended for 60 per cent of contacts, according to Interfax. It again reported two COVID-19 cases and two rhinovirus cases and "no other pathogens." However, the note Russia sent through the WHO, relayed to the AP, said observation "for 100% of the contacts has now been concluded." The two figures have not been reconciled publicly.

Yelena Sofina, deputy head of the Shelekhov district, said the "dangerous diagnosis" that prompted the hospital quarantine had not been confirmed and that 60 per cent of those quarantined had gone home. Kazakhstan's Kursiv and Uzbekistan's Zamon.uz reported her comments, citing Reuters and The Guardian.

Denial of new restrictions. Rospotrebnadzor's Irkutsk office said a document circulating online, which described an "enhanced sanitary-epidemiological regime" and strict restrictions, was "untrue." It said no decisions on any restrictions had been made, Fontanka and NBC News reported. It said seasonal respiratory illness was 12.6 per cent below the epidemic threshold (Interfax).

Institute staff released. On Monday, RFE/RL reported that institute staff had been confined inside the building. A People of Baikal report, translated by Meduza on 6 October, quotes an employee who says about 200 staff were held for three days, swabbed twice a day and released on Sunday, 4 October. A colleague said tests on Darya Shipilova's death were still under way: "there are still no final findings."

Shipilova's mother, Svetlana, was still quarantined in hospital on 5 October and had received no official report on her daughter's death, the outlet reported.

Hospital measures. The Irkutsk City Perinatal Centre gave a pregnant patient a "Checklist for Suspected Plague," barred visitors and stopped partners from attending births, The Moscow Times and Meduza reported, citing People of Baikal. Shelekhov's inpatient building was expected to stay closed until week's end, according to receptionists quoted by People of Baikal. The regional government, however, told NGS24 and IrCity that all hospitals were working normally.

Washington and Moscow. U.S. President Donald Trump said on Tuesday he had a call with Vladimir Putin "scheduled" for "very soon," AFP and NBC News reported. Secretary of State Marco Rubio said in Iceland: "Maybe there's nothing there. Maybe it's bigger than we thought. We don't know."

AFP cited The Wall Street Journal as reporting that the State Department had sent Moscow a formal diplomatic protest, known as a démarche. CNN, citing a source, said one was still being considered. The U.S. Centers for Disease Control and Prevention said on X there was "no indication of a broader threat to the United States," NBC reported.

Kremlin spokesman Dmitry Peskov said of Trump's offer of help that "it is always very good when mutual assistance is offered" (AP). He deferred to Rospotrebnadzor when asked whether lab results or an autopsy would be released (NBC). Rospotrebnadzor, in turn, offered to help the United States with its own outbreaks, citing measles and a fatal New Mexico plague case in June (Kommersant).

Canada. The Public Health Agency of Canada told Global News that "no risk to Canada has been identified" and that it is monitoring the situation. Health Minister Marjorie Michel said on Monday there is "no risk for Canada."

The official Russian picture

Rospotrebnadzor's position is unchanged: "pneumonia of unknown etiology," no microorganisms linked to Shipilova's work, and no accidents involving pathogens (Interfax).

Europe and Central Asia

In a web statement, the European Centre for Disease Prevention and Control (ECDC) said there are no reports of secondary cases and no evidence of sustained human-to-human transmission. A spokesperson told Euronews the suspicion "is not yet confirmed."

The Times of Central Asia and AnewZ reported no new measures on 6 October: Kazakhstan, Kyrgyzstan, Tajikistan and Uzbekistan have tightened screening and readiness, but none has closed its border. The Times of Central Asia noted that Turkmenistan has said nothing.

Kazakhstan's Center for Combating Disinformation warned against posts falsely linking a 21 September fire at an Almaty infectious-disease centre to the Irkutsk rumours (infohub.kz).

Speculation, labelled

The claim that Shipilova broke a tube of plague bacteria remains unconfirmed, and Russia denies any accident. Colleagues and her mother told People of Baikal it was implausible. An anonymous physician who spoke to People of Baikal called the "no outbreak" theory "unconvincing." He said definitive laboratory confirmation can take up to 10 days.

Meduza reports that Izvestia published, then deleted, a report on a criminal case for violating public-health rules resulting in death. Brendan Wren of the London School of Hygiene & Tropical Medicine told RFE/RL that it appears to be "an isolated occupational infection," not an outbreak.

What is still unknown

  • Which pathogen killed Shipilova, and whether Yersinia pestis, the bacterium that causes plague, was specifically ruled out in her samples
  • Why quarantines were imposed if tests were negative
  • Whether 60 per cent or 100 per cent of contacts have been released
  • What, if anything, the reported second employee case involves

No WHO Disease Outbreak News notice has been published. An international plague conference will go ahead in Irkutsk on 21–22 October. Organizers say it is "unrelated" to the death (AFP).

Sources