China and Russia held an infectious-disease preparedness exercise in Fuyuan from 24 to 27 August 2026, including a simulated imported-plague scenario. Weeks later, an X account warned of possible lockdowns in northeastern China, but the post did not establish that restrictions were planned or provide a verified official announcement.
The warning circulated amid concern over the death of Darya Shipilova, 28, a worker at Russia's Irkutsk Anti-Plague Research Institute who died on 2 October after developing severe pneumonia. Plague has not been confirmed as the cause of her death, and no verified evidence links her illness or the online warning to the August exercise.
