Without a cause of death, it's unclear if Russia's precautions were the right ones.
Read More
Mass quarantine issued in Russia after unexplained death of plague researcher
Unconfirmed reports have suggested there was a laboratory accident.
Read MoreWithout a cause of death, it's unclear if Russia's precautions were the right ones.
Read MoreUnconfirmed reports have suggested there was a laboratory accident.
Read More
