I don't see how we can infer much from them quarantining hospitals and using hazmats. If there is a deadly lab leak, these sound like precautions you should take initially whether the outbreak is treatable and controlled or not.
Russia's five-hospital quarantine, FSB involvement, and reported hazmat use in response to the death of a single researcher at a weapons-lineage Irkutsk lab are inconsistent with a lab-acquired plague infection, which would have been treated with prophylactic antibiotics.
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