WHO officials say unclear how Russia plague lab worker died

The WHO said on Wednesday it does not have enough information from Russian authorities to conduct a full risk assessment after the death of a plague laboratory worker.

​The WHO said on Wednesday it does not have enough information from Russian authorities to conduct a full risk assessment after the death of a plague laboratory worker.  Health The WHO said on Wednesday it does not have enough information from Russian authorities to conduct a full risk assessment after the death of a plague laboratory worker.