Assertion: variola virus | /r/HasProperty | retained in laboratory freezers
Facets:
value: inadvertently
type: MANNER
Source sentences:
text: According to this 2009 article by the late bioweapons researcher Jonathan Tucker, after most smallpox stocks were shifted to the two central repositories, “[a] few scientific research centers also reported finding and destroying vials containing the smallpox virus that had been retained inadvertently in laboratory freezers, sparking fears that other poorly secured samples might exist that could fall into the hands of terrorists.