Russian lab worker's death from severe pneumonia sparks unconfirmed plague fears

The Incident

Darya Shipilova, a 28-year-old laboratory worker at the Irkutsk Anti-Plague Research Institute in eastern Russia, died on October 2 after developing severe pneumonia. Unconfirmed reports in Russian media suggest she may have been exposed to pneumonic plague after accidentally breaking a test tube at the facility or during a work trip to Buryatia. Rospotrebnadzor, Russia's public-health watchdog, stated that extensive testing found no microorganisms linked to her professional work and no lab accidents involving pathogens.

Quarantine and Reactions

Nearly 200 people who had contact with Shipilova were placed under a strict three-week quarantine as officials monitored the situation. Anna Popova, head of Rospotrebnadzor, travelled to the Irkutsk region to coordinate the response, while regional governor Igor Kobzev reported that identified contacts showed no signs of illness and tested negative, though Associated Press noted two contacts tested positive for a common cold and two others for Covid-19. Local officials and pro-Kremlin websites initially posted warnings about a possible plague infection or advised against travelling to Shelekhov before deleting the posts. Kremlin spokesman Dmitry Peskov urged the public to rely on official statements rather than rumors, and former Rospotrebnadzor chief Gennady Onishchenko said the infection was likely not the plague.

Context

The Irkutsk Anti-Plague Research Institute is a specialist facility established in the 1930s to study dangerous infectious diseases including cholera, brucellosis, tularemia, and anthrax. Pneumonic plague is the respiratory form of a disease caused by Yersinia pestis and is notable as the only form that can spread from person to person.