Russian health authorities reported no confirmed pneumonic plague cases following the October 2026 death of an Irkutsk Anti-Plague Research Institute laboratory technician from pneumonia of undetermined etiology. Officials completed monitoring of nearly 200 contacts by early October, with over 5,000 tests identifying no dangerous pathogens or secondary transmissions. Russia notified the WHO that no plague had been registered, and all quarantines were lifted. Plague remains endemic in designated natural foci across Russia, where annual vaccinations occur in affected areas, though human cases stay infrequent. Traders assess low near-term probability of an additional confirmed case by late October due to the short pneumonic incubation window, absence of linked infections, and official testing results, while noting potential for delayed laboratory reclassification or unrelated zoonotic exposures.