WHO officials say unclear how Russia plague lab worker died

The World Health Organization (WHO) said on Wednesday it does not currently have enough information from Russian authorities to conduct a full risk assessment after the death of a plague laboratory worker in Siberia.
Dr. Tedros Adhanom Ghebreyesus, WHO director-general, said during a press conference that following media reports of the worker's death, the WHO asked the Russian Federation on Saturday for more information, in accordance with the International Health Regulations (IHR).
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