Assertion: biological agent | /r/HasProperty | variola major
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Source sentences:
text: Biological agents that have been identified as posing the greatest threat are variola major (smallpox), Bacillus anthracis (anthrax), Yersinia pestis (plague), Clostridium botulinum toxin (botulism), Francisella tularensis (tularaemia), filoviruses (Ebola hemorrrhagic fever and Marburg hemorrhagic fever), and arenaviruses Lassa (Lassa fever) and Junin (Argentine hemorrhagic fever).