Russian plague bioweapons fears have grown after Dr. Robert Redfield raised questions about a lab worker's death in Siberia. Redfield previously served as director of the US Centers for Disease Control and Prevention.
Laboratory worker Darya Shipilova died in Siberia, but Russian authorities have not publicly identified the cause of death. There is no confirmed evidence that the incident involved a genetically modified pathogen. There is also no verified proof that it was linked to any biological weapons programme.
