WHO Issues Update on Russian Plague Lab Worker’s Death
The U.N. health body said it doesn't know the cause of the Siberian lab worker's death but said no case of plague has been registered.

TL;DR
- The WHO does not know the cause of pneumonia that killed a Russian anti-plague researcher.
- No case of plague has been registered.
- WHO has not identified evidence of ongoing transmission associated with the event.
- A confirmed diagnosis for the deceased worker is absent, creating uncertainty.