Russia plays down plague fears and denies lab accident, says scientist died of "pneumonia of unknown origin"

Updated on: October 5, 2026 / 7:42 PM EDT / CBS News

Russia plays down plague fears and denies lab accident, says scientist died of "pneumonia of unknown origin"

TL;DR

  • Russian officials are downplaying reports of a scientist's death potentially due to plague exposure from a lab accident.
  • The state health watchdog, Rospotrebnadzor, denied any accident and stated the scientist died of pneumonia of unknown origin.
  • Initial reports and some regional officials had suggested the scientist, Darya Shipilova, died of pneumonic plague after breaking a test tube with the bacteria.
  • Rospotrebnadzor conducted testing on individuals who had contact with the scientist, finding no dangerous pathogens.
  • The World Health Organization believes the public health risk is low, and the U.S. Secretary of State views the situation as a cause for focus, not alarm.